./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_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_25-struct_nr_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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:07:33,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:07:33,832 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:07:33,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:07:33,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:07:33,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:07:33,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:07:33,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:07:33,874 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:07:33,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:07:33,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:07:33,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:07:33,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:07:33,879 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:07:33,879 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:07:33,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:07:33,879 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:07:33,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:07:33,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:07:33,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:07:33,880 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:07:33,884 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:07:33,885 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:07:33,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:07:33,885 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:07:33,885 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:07:33,885 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:07:33,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:07:33,886 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:07:33,886 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:07:33,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:07:33,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:07:33,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:07:33,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:07:33,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:07:33,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:07:33,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:07:33,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:07:33,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:07:33,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:07:33,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:07:33,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:07:33,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2024-11-10 18:07:34,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:07:34,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:07:34,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:07:34,191 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:07:34,192 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:07:34,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2024-11-10 18:07:35,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:07:36,002 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:07:36,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2024-11-10 18:07:36,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6b9b56d/3df847a21b494ffcb52d5ab271cd8794/FLAG220cbd3a4 [2024-11-10 18:07:36,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6b9b56d/3df847a21b494ffcb52d5ab271cd8794 [2024-11-10 18:07:36,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:07:36,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:07:36,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:07:36,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:07:36,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:07:36,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd1f07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36, skipping insertion in model container [2024-11-10 18:07:36,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:07:36,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:07:36,448 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:07:36,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:07:36,539 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:07:36,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36 WrapperNode [2024-11-10 18:07:36,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:07:36,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:07:36,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:07:36,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:07:36,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,596 INFO L138 Inliner]: procedures = 162, calls = 22, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 83 [2024-11-10 18:07:36,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:07:36,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:07:36,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:07:36,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:07:36,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,626 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-10 18:07:36,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,634 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:07:36,641 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:07:36,641 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:07:36,641 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:07:36,642 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (1/1) ... [2024-11-10 18:07:36,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:07:36,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:07:36,680 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 18:07:36,700 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 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 18:07:36,749 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:07:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:07:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:07:36,751 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 18:07:36,875 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:07:36,877 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:07:37,096 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:07:37,096 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:07:37,232 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:07:37,233 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:07:37,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:07:37 BoogieIcfgContainer [2024-11-10 18:07:37,233 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:07:37,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:07:37,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:07:37,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:07:37,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:07:36" (1/3) ... [2024-11-10 18:07:37,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6415669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:07:37, skipping insertion in model container [2024-11-10 18:07:37,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:07:36" (2/3) ... [2024-11-10 18:07:37,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6415669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:07:37, skipping insertion in model container [2024-11-10 18:07:37,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:07:37" (3/3) ... [2024-11-10 18:07:37,252 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2024-11-10 18:07:37,269 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:07:37,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-10 18:07:37,270 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:07:37,317 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 18:07:37,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2024-11-10 18:07:37,379 INFO L124 PetriNetUnfolderBase]: 8/48 cut-off events. [2024-11-10 18:07:37,380 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:07:37,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 48 events. 8/48 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 99 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-11-10 18:07:37,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2024-11-10 18:07:37,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2024-11-10 18:07:37,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:07:37,407 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;@7c3b6c00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:07:37,408 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 18:07:37,412 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:07:37,412 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-10 18:07:37,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:07:37,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:37,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:07:37,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:37,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash 7495599, now seen corresponding path program 1 times [2024-11-10 18:07:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:37,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599318942] [2024-11-10 18:07:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:37,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:37,755 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 18:07:37,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:37,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599318942] [2024-11-10 18:07:37,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599318942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:37,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:37,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:07:37,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080208804] [2024-11-10 18:07:37,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:37,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:07:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:37,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:07:37,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:07:37,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-10 18:07:37,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 18:07:37,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:37,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-10 18:07:37,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:38,014 INFO L124 PetriNetUnfolderBase]: 63/197 cut-off events. [2024-11-10 18:07:38,014 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:07:38,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 197 events. 63/197 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 885 event pairs, 54 based on Foata normal form. 50/235 useless extension candidates. Maximal degree in co-relation 332. Up to 128 conditions per place. [2024-11-10 18:07:38,018 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 27 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2024-11-10 18:07:38,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 150 flow [2024-11-10 18:07:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:07:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:07:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-10 18:07:38,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5510204081632653 [2024-11-10 18:07:38,033 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 81 transitions. [2024-11-10 18:07:38,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 150 flow [2024-11-10 18:07:38,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:07:38,037 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 74 flow [2024-11-10 18:07:38,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2024-11-10 18:07:38,042 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2024-11-10 18:07:38,042 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 74 flow [2024-11-10 18:07:38,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 18:07:38,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:38,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:38,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:07:38,043 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:38,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2140637217, now seen corresponding path program 1 times [2024-11-10 18:07:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376221136] [2024-11-10 18:07:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:38,224 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 18:07:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:38,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376221136] [2024-11-10 18:07:38,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376221136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:38,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:38,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:38,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634236842] [2024-11-10 18:07:38,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:38,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:07:38,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:38,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:07:38,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:07:38,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-10 18:07:38,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 18:07:38,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:38,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-10 18:07:38,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:38,387 INFO L124 PetriNetUnfolderBase]: 60/184 cut-off events. [2024-11-10 18:07:38,387 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 18:07:38,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 184 events. 60/184 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 755 event pairs, 20 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 205. Up to 76 conditions per place. [2024-11-10 18:07:38,390 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 32 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2024-11-10 18:07:38,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 184 flow [2024-11-10 18:07:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:07:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:07:38,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-10 18:07:38,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43673469387755104 [2024-11-10 18:07:38,394 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 74 flow. Second operand 5 states and 107 transitions. [2024-11-10 18:07:38,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 184 flow [2024-11-10 18:07:38,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:07:38,398 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 112 flow [2024-11-10 18:07:38,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-11-10 18:07:38,399 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-11-10 18:07:38,400 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 112 flow [2024-11-10 18:07:38,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 18:07:38,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:38,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:38,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:07:38,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:38,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:38,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1960054847, now seen corresponding path program 1 times [2024-11-10 18:07:38,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:38,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187349401] [2024-11-10 18:07:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:38,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:38,526 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 18:07:38,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:38,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187349401] [2024-11-10 18:07:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187349401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985263869] [2024-11-10 18:07:38,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:38,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:07:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:38,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:07:38,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:07:38,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-10 18:07:38,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 18:07:38,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:38,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-10 18:07:38,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:38,669 INFO L124 PetriNetUnfolderBase]: 54/159 cut-off events. [2024-11-10 18:07:38,669 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-11-10 18:07:38,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 159 events. 54/159 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 591 event pairs, 21 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 125. Up to 75 conditions per place. [2024-11-10 18:07:38,671 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 31 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2024-11-10 18:07:38,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 226 flow [2024-11-10 18:07:38,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:07:38,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:07:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2024-11-10 18:07:38,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4204081632653061 [2024-11-10 18:07:38,675 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 112 flow. Second operand 5 states and 103 transitions. [2024-11-10 18:07:38,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 226 flow [2024-11-10 18:07:38,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 221 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:07:38,678 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 136 flow [2024-11-10 18:07:38,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-10 18:07:38,679 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-11-10 18:07:38,680 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 136 flow [2024-11-10 18:07:38,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 18:07:38,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:38,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:38,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:07:38,681 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:38,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:38,682 INFO L85 PathProgramCache]: Analyzing trace with hash -516355748, now seen corresponding path program 1 times [2024-11-10 18:07:38,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:38,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27037727] [2024-11-10 18:07:38,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:38,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:38,763 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 18:07:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27037727] [2024-11-10 18:07:38,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27037727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:38,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:38,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:07:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58728473] [2024-11-10 18:07:38,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:38,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:07:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:38,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:07:38,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:07:38,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-10 18:07:38,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 18:07:38,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:38,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-10 18:07:38,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:38,918 INFO L124 PetriNetUnfolderBase]: 17/81 cut-off events. [2024-11-10 18:07:38,918 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-10 18:07:38,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 81 events. 17/81 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 200 event pairs, 5 based on Foata normal form. 7/88 useless extension candidates. Maximal degree in co-relation 97. Up to 38 conditions per place. [2024-11-10 18:07:38,919 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 21 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2024-11-10 18:07:38,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 184 flow [2024-11-10 18:07:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:07:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:07:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-10 18:07:38,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2024-11-10 18:07:38,923 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 136 flow. Second operand 3 states and 69 transitions. [2024-11-10 18:07:38,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 184 flow [2024-11-10 18:07:38,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 172 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 18:07:38,926 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 124 flow [2024-11-10 18:07:38,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2024-11-10 18:07:38,929 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-11-10 18:07:38,929 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 124 flow [2024-11-10 18:07:38,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 18:07:38,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:38,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:38,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:07:38,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:38,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1640582082, now seen corresponding path program 1 times [2024-11-10 18:07:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371603416] [2024-11-10 18:07:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:38,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:39,031 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 18:07:39,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371603416] [2024-11-10 18:07:39,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371603416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:39,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:39,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:07:39,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790212362] [2024-11-10 18:07:39,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:39,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:07:39,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:07:39,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:07:39,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-10 18:07:39,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 18:07:39,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:39,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-10 18:07:39,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:39,120 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-11-10 18:07:39,120 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-10 18:07:39,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 79 events. 19/79 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 165 event pairs, 9 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 108. Up to 29 conditions per place. [2024-11-10 18:07:39,122 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 23 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2024-11-10 18:07:39,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 199 flow [2024-11-10 18:07:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:07:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:07:39,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-10 18:07:39,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36394557823129253 [2024-11-10 18:07:39,124 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 124 flow. Second operand 6 states and 107 transitions. [2024-11-10 18:07:39,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 199 flow [2024-11-10 18:07:39,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:07:39,126 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 137 flow [2024-11-10 18:07:39,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2024-11-10 18:07:39,129 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-11-10 18:07:39,129 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 137 flow [2024-11-10 18:07:39,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 18:07:39,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:39,129 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:39,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:07:39,130 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:39,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1436518677, now seen corresponding path program 1 times [2024-11-10 18:07:39,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:39,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224710356] [2024-11-10 18:07:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:39,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:39,242 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 18:07:39,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:39,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224710356] [2024-11-10 18:07:39,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224710356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:39,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:39,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:07:39,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895965266] [2024-11-10 18:07:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:39,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:07:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:07:39,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:07:39,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-10 18:07:39,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:07:39,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:39,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-10 18:07:39,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:39,361 INFO L124 PetriNetUnfolderBase]: 17/78 cut-off events. [2024-11-10 18:07:39,361 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-10 18:07:39,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 78 events. 17/78 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 4 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 110. Up to 15 conditions per place. [2024-11-10 18:07:39,362 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 29 selfloop transitions, 9 changer transitions 0/43 dead transitions. [2024-11-10 18:07:39,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 43 transitions, 242 flow [2024-11-10 18:07:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:07:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:07:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 143 transitions. [2024-11-10 18:07:39,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3647959183673469 [2024-11-10 18:07:39,366 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 137 flow. Second operand 8 states and 143 transitions. [2024-11-10 18:07:39,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 43 transitions, 242 flow [2024-11-10 18:07:39,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 222 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 18:07:39,371 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 138 flow [2024-11-10 18:07:39,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=138, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2024-11-10 18:07:39,372 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-11-10 18:07:39,372 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 138 flow [2024-11-10 18:07:39,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:07:39,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:07:39,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:39,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:07:39,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 18:07:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:07:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash 62373180, now seen corresponding path program 1 times [2024-11-10 18:07:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:07:39,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400235370] [2024-11-10 18:07:39,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:07:39,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:07:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:07:39,424 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 18:07:39,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:07:39,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400235370] [2024-11-10 18:07:39,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400235370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:07:39,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:07:39,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:07:39,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152191020] [2024-11-10 18:07:39,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:07:39,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:07:39,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:07:39,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:07:39,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:07:39,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-11-10 18:07:39,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 18:07:39,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:07:39,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-11-10 18:07:39,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:07:39,462 INFO L124 PetriNetUnfolderBase]: 15/74 cut-off events. [2024-11-10 18:07:39,462 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-10 18:07:39,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 74 events. 15/74 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 15 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 110. Up to 59 conditions per place. [2024-11-10 18:07:39,463 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-10 18:07:39,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 29 transitions, 180 flow [2024-11-10 18:07:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:07:39,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:07:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-10 18:07:39,464 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40816326530612246 [2024-11-10 18:07:39,464 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 138 flow. Second operand 3 states and 60 transitions. [2024-11-10 18:07:39,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 29 transitions, 180 flow [2024-11-10 18:07:39,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 162 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 18:07:39,487 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-11-10 18:07:39,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-11-10 18:07:39,491 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-11-10 18:07:39,491 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-11-10 18:07:39,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 18:07:39,494 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-10 18:07:39,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-10 18:07:39,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-10 18:07:39,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-10 18:07:39,496 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2024-11-10 18:07:39,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2024-11-10 18:07:39,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-11-10 18:07:39,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-11-10 18:07:39,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:07:39,498 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:07:39,508 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:07:39,509 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:07:39,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:07:39 BasicIcfg [2024-11-10 18:07:39,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:07:39,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:07:39,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:07:39,517 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:07:39,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:07:37" (3/4) ... [2024-11-10 18:07:39,520 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:07:39,523 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 18:07:39,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-10 18:07:39,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-10 18:07:39,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 18:07:39,529 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 18:07:39,624 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:07:39,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:07:39,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:07:39,628 INFO L158 Benchmark]: Toolchain (without parser) took 3581.71ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 87.6MB in the beginning and 164.6MB in the end (delta: -77.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:07:39,628 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:07:39,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.48ms. Allocated memory is still 159.4MB. Free memory was 87.6MB in the beginning and 65.6MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 18:07:39,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.85ms. Allocated memory is still 159.4MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:07:39,629 INFO L158 Benchmark]: Boogie Preprocessor took 41.90ms. Allocated memory is still 159.4MB. Free memory was 63.5MB in the beginning and 61.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:07:39,629 INFO L158 Benchmark]: IcfgBuilder took 592.68ms. Allocated memory is still 159.4MB. Free memory was 61.4MB in the beginning and 108.2MB in the end (delta: -46.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-10 18:07:39,629 INFO L158 Benchmark]: TraceAbstraction took 2276.54ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 107.4MB in the beginning and 168.8MB in the end (delta: -61.3MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2024-11-10 18:07:39,630 INFO L158 Benchmark]: Witness Printer took 110.15ms. Allocated memory is still 201.3MB. Free memory was 168.8MB in the beginning and 164.6MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:07:39,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.48ms. Allocated memory is still 159.4MB. Free memory was 87.6MB in the beginning and 65.6MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.85ms. Allocated memory is still 159.4MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.90ms. Allocated memory is still 159.4MB. Free memory was 63.5MB in the beginning and 61.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 592.68ms. Allocated memory is still 159.4MB. Free memory was 61.4MB in the beginning and 108.2MB in the end (delta: -46.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2276.54ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 107.4MB in the beginning and 168.8MB in the end (delta: -61.3MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Witness Printer took 110.15ms. Allocated memory is still 201.3MB. Free memory was 168.8MB in the beginning and 164.6MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. 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: 697]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 61 locations, 8 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: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 1 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 18:07:39,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE