./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.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 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:24:03,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:24:03,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:24:03,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:24:03,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:24:03,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:24:03,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:24:03,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:24:03,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:24:03,890 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:24:03,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:24:03,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:24:03,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:24:03,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:24:03,894 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:24:03,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:24:03,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:24:03,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:24:03,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:24:03,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:24:03,896 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:24:03,899 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:24:03,899 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:24:03,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:24:03,899 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:24:03,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:24:03,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:24:03,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:24:03,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:24:03,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:24:03,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:24:03,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:24:03,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:24:03,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:24:03,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:24:03,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:24:03,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:24:03,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:24:03,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:24:03,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:24:03,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:24:03,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:24:03,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f [2024-10-14 19:24:04,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:24:04,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:24:04,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:24:04,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:24:04,183 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:24:04,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2024-10-14 19:24:05,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:24:05,770 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:24:05,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2024-10-14 19:24:05,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fc58a18/464a0288476c476cb8145adb8c9b22b7/FLAGc2296bbb5 [2024-10-14 19:24:05,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fc58a18/464a0288476c476cb8145adb8c9b22b7 [2024-10-14 19:24:05,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:24:05,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:24:05,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:24:05,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:24:05,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:24:05,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:24:05" (1/1) ... [2024-10-14 19:24:05,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58edf200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:05, skipping insertion in model container [2024-10-14 19:24:05,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:24:05" (1/1) ... [2024-10-14 19:24:05,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:24:06,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:24:06,194 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:24:06,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:24:06,306 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:24:06,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06 WrapperNode [2024-10-14 19:24:06,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:24:06,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:24:06,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:24:06,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:24:06,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,348 INFO L138 Inliner]: procedures = 170, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2024-10-14 19:24:06,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:24:06,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:24:06,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:24:06,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:24:06,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,377 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 19:24:06,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:24:06,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:24:06,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:24:06,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:24:06,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (1/1) ... [2024-10-14 19:24:06,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:24:06,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:24:06,437 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) [2024-10-14 19:24:06,440 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 [2024-10-14 19:24:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-10-14 19:24:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-10-14 19:24:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-14 19:24:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-14 19:24:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:24:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:24:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:24:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:24:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:24:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:24:06,497 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:24:06,642 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:24:06,645 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:24:06,847 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:24:06,848 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:24:06,947 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:24:06,947 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-14 19:24:06,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:24:06 BoogieIcfgContainer [2024-10-14 19:24:06,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:24:06,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:24:06,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:24:06,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:24:06,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:24:05" (1/3) ... [2024-10-14 19:24:06,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd6341f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:24:06, skipping insertion in model container [2024-10-14 19:24:06,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:24:06" (2/3) ... [2024-10-14 19:24:06,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd6341f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:24:06, skipping insertion in model container [2024-10-14 19:24:06,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:24:06" (3/3) ... [2024-10-14 19:24:06,956 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2024-10-14 19:24:06,968 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:24:06,968 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:24:06,968 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:24:07,020 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 19:24:07,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 64 transitions, 142 flow [2024-10-14 19:24:07,090 INFO L124 PetriNetUnfolderBase]: 10/62 cut-off events. [2024-10-14 19:24:07,090 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 19:24:07,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 62 events. 10/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 170 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-10-14 19:24:07,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 64 transitions, 142 flow [2024-10-14 19:24:07,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 61 transitions, 134 flow [2024-10-14 19:24:07,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:24:07,124 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;@471593fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:24:07,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-14 19:24:07,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:24:07,137 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2024-10-14 19:24:07,137 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:24:07,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:07,139 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:07,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-14 19:24:07,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:07,145 INFO L85 PathProgramCache]: Analyzing trace with hash -108981698, now seen corresponding path program 1 times [2024-10-14 19:24:07,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:07,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736960874] [2024-10-14 19:24:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:07,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:07,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736960874] [2024-10-14 19:24:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736960874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:24:07,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:24:07,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:24:07,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163650832] [2024-10-14 19:24:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:24:07,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:24:07,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:07,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:24:07,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:24:07,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 64 [2024-10-14 19:24:07,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 61 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-10-14 19:24:07,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:07,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 64 [2024-10-14 19:24:07,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:07,611 INFO L124 PetriNetUnfolderBase]: 99/318 cut-off events. [2024-10-14 19:24:07,611 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-14 19:24:07,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 318 events. 99/318 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1954 event pairs, 34 based on Foata normal form. 62/337 useless extension candidates. Maximal degree in co-relation 453. Up to 92 conditions per place. [2024-10-14 19:24:07,620 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 21 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2024-10-14 19:24:07,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 192 flow [2024-10-14 19:24:07,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:24:07,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:24:07,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2024-10-14 19:24:07,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8385416666666666 [2024-10-14 19:24:07,633 INFO L175 Difference]: Start difference. First operand has 58 places, 61 transitions, 134 flow. Second operand 3 states and 161 transitions. [2024-10-14 19:24:07,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 192 flow [2024-10-14 19:24:07,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 63 transitions, 180 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:24:07,639 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 134 flow [2024-10-14 19:24:07,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2024-10-14 19:24:07,647 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -2 predicate places. [2024-10-14 19:24:07,647 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 134 flow [2024-10-14 19:24:07,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-10-14 19:24:07,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:07,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:07,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:24:07,649 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-14 19:24:07,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash -177999046, now seen corresponding path program 1 times [2024-10-14 19:24:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:07,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957080685] [2024-10-14 19:24:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:07,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:07,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957080685] [2024-10-14 19:24:07,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957080685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:24:07,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:24:07,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:24:07,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783188126] [2024-10-14 19:24:07,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:24:07,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:24:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:07,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:24:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:24:07,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 64 [2024-10-14 19:24:07,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-10-14 19:24:07,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:07,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 64 [2024-10-14 19:24:07,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:07,859 INFO L124 PetriNetUnfolderBase]: 89/309 cut-off events. [2024-10-14 19:24:07,859 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-14 19:24:07,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 309 events. 89/309 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1843 event pairs, 47 based on Foata normal form. 17/299 useless extension candidates. Maximal degree in co-relation 196. Up to 113 conditions per place. [2024-10-14 19:24:07,863 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 21 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-10-14 19:24:07,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 194 flow [2024-10-14 19:24:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:24:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:24:07,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2024-10-14 19:24:07,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2024-10-14 19:24:07,866 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 134 flow. Second operand 3 states and 154 transitions. [2024-10-14 19:24:07,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 194 flow [2024-10-14 19:24:07,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:24:07,871 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 138 flow [2024-10-14 19:24:07,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2024-10-14 19:24:07,872 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -1 predicate places. [2024-10-14 19:24:07,872 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 138 flow [2024-10-14 19:24:07,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2024-10-14 19:24:07,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:07,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:07,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:24:07,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-14 19:24:07,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:07,874 INFO L85 PathProgramCache]: Analyzing trace with hash -246304399, now seen corresponding path program 1 times [2024-10-14 19:24:07,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:07,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892985611] [2024-10-14 19:24:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:07,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:08,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:08,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892985611] [2024-10-14 19:24:08,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892985611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:24:08,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:24:08,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:24:08,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625057829] [2024-10-14 19:24:08,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:24:08,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:24:08,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:08,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:24:08,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:24:08,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 64 [2024-10-14 19:24:08,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-14 19:24:08,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:08,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 64 [2024-10-14 19:24:08,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:08,248 INFO L124 PetriNetUnfolderBase]: 292/772 cut-off events. [2024-10-14 19:24:08,248 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-10-14 19:24:08,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 772 events. 292/772 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4941 event pairs, 78 based on Foata normal form. 15/724 useless extension candidates. Maximal degree in co-relation 843. Up to 222 conditions per place. [2024-10-14 19:24:08,257 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 34 selfloop transitions, 10 changer transitions 0/78 dead transitions. [2024-10-14 19:24:08,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 78 transitions, 281 flow [2024-10-14 19:24:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:24:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:24:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 235 transitions. [2024-10-14 19:24:08,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.734375 [2024-10-14 19:24:08,260 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 138 flow. Second operand 5 states and 235 transitions. [2024-10-14 19:24:08,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 78 transitions, 281 flow [2024-10-14 19:24:08,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 78 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:24:08,276 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 193 flow [2024-10-14 19:24:08,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2024-10-14 19:24:08,278 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2024-10-14 19:24:08,278 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 193 flow [2024-10-14 19:24:08,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-14 19:24:08,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:08,280 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:08,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:24:08,280 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-14 19:24:08,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:08,281 INFO L85 PathProgramCache]: Analyzing trace with hash 457496087, now seen corresponding path program 2 times [2024-10-14 19:24:08,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:08,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155780413] [2024-10-14 19:24:08,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:08,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:08,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:08,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155780413] [2024-10-14 19:24:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155780413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:24:08,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:24:08,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:24:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344831407] [2024-10-14 19:24:08,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:24:08,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:24:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:08,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:24:08,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:24:08,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 64 [2024-10-14 19:24:08,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-14 19:24:08,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:08,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 64 [2024-10-14 19:24:08,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:08,571 INFO L124 PetriNetUnfolderBase]: 444/1072 cut-off events. [2024-10-14 19:24:08,571 INFO L125 PetriNetUnfolderBase]: For 377/379 co-relation queries the response was YES. [2024-10-14 19:24:08,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 1072 events. 444/1072 cut-off events. For 377/379 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 7487 event pairs, 122 based on Foata normal form. 28/1031 useless extension candidates. Maximal degree in co-relation 1271. Up to 283 conditions per place. [2024-10-14 19:24:08,581 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 29 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2024-10-14 19:24:08,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 304 flow [2024-10-14 19:24:08,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:24:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:24:08,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2024-10-14 19:24:08,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.71875 [2024-10-14 19:24:08,588 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 193 flow. Second operand 5 states and 230 transitions. [2024-10-14 19:24:08,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 304 flow [2024-10-14 19:24:08,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 300 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-14 19:24:08,594 INFO L231 Difference]: Finished difference. Result has 64 places, 62 transitions, 234 flow [2024-10-14 19:24:08,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=64, PETRI_TRANSITIONS=62} [2024-10-14 19:24:08,595 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2024-10-14 19:24:08,596 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 62 transitions, 234 flow [2024-10-14 19:24:08,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-14 19:24:08,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:08,596 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] [2024-10-14 19:24:08,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:24:08,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-14 19:24:08,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:08,597 INFO L85 PathProgramCache]: Analyzing trace with hash 124927097, now seen corresponding path program 1 times [2024-10-14 19:24:08,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:08,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36703820] [2024-10-14 19:24:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:08,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:08,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:08,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36703820] [2024-10-14 19:24:08,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36703820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:24:08,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:24:08,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:24:08,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514297324] [2024-10-14 19:24:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:24:08,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:24:08,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:24:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:24:08,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 64 [2024-10-14 19:24:08,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 62 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-10-14 19:24:08,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:08,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 64 [2024-10-14 19:24:08,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:08,750 INFO L124 PetriNetUnfolderBase]: 253/719 cut-off events. [2024-10-14 19:24:08,751 INFO L125 PetriNetUnfolderBase]: For 446/447 co-relation queries the response was YES. [2024-10-14 19:24:08,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 719 events. 253/719 cut-off events. For 446/447 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4306 event pairs, 104 based on Foata normal form. 2/624 useless extension candidates. Maximal degree in co-relation 1119. Up to 237 conditions per place. [2024-10-14 19:24:08,757 INFO L140 encePairwiseOnDemand]: 62/64 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2024-10-14 19:24:08,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 61 transitions, 260 flow [2024-10-14 19:24:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:24:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:24:08,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-10-14 19:24:08,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7447916666666666 [2024-10-14 19:24:08,759 INFO L175 Difference]: Start difference. First operand has 64 places, 62 transitions, 234 flow. Second operand 3 states and 143 transitions. [2024-10-14 19:24:08,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 61 transitions, 260 flow [2024-10-14 19:24:08,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 61 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:24:08,764 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-10-14 19:24:08,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-10-14 19:24:08,766 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2024-10-14 19:24:08,767 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-10-14 19:24:08,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-10-14 19:24:08,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-14 19:24:08,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-14 19:24:08,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-14 19:24:08,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-14 19:24:08,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-14 19:24:08,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-10-14 19:24:08,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-14 19:24:08,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:24:08,773 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-10-14 19:24:08,781 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:24:08,781 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:24:08,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:24:08 BasicIcfg [2024-10-14 19:24:08,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:24:08,789 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:24:08,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:24:08,789 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:24:08,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:24:06" (3/4) ... [2024-10-14 19:24:08,791 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:24:08,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-10-14 19:24:08,794 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-10-14 19:24:08,801 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-14 19:24:08,801 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-14 19:24:08,801 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 19:24:08,801 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:24:08,898 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:24:08,899 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:24:08,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:24:08,900 INFO L158 Benchmark]: Toolchain (without parser) took 3099.49ms. Allocated memory was 130.0MB in the beginning and 199.2MB in the end (delta: 69.2MB). Free memory was 57.9MB in the beginning and 163.7MB in the end (delta: -105.7MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,901 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:24:08,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.31ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 57.7MB in the beginning and 121.1MB in the end (delta: -63.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.94ms. Allocated memory is still 157.3MB. Free memory was 121.1MB in the beginning and 119.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,902 INFO L158 Benchmark]: Boogie Preprocessor took 42.79ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 117.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,902 INFO L158 Benchmark]: RCFGBuilder took 554.22ms. Allocated memory is still 157.3MB. Free memory was 117.0MB in the beginning and 96.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,902 INFO L158 Benchmark]: TraceAbstraction took 1839.07ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 95.2MB in the beginning and 85.6MB in the end (delta: 9.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,905 INFO L158 Benchmark]: Witness Printer took 109.99ms. Allocated memory is still 199.2MB. Free memory was 85.6MB in the beginning and 163.7MB in the end (delta: -78.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:24:08,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.31ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 57.7MB in the beginning and 121.1MB in the end (delta: -63.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.94ms. Allocated memory is still 157.3MB. Free memory was 121.1MB in the beginning and 119.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.79ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 117.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.22ms. Allocated memory is still 157.3MB. Free memory was 117.0MB in the beginning and 96.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1839.07ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 95.2MB in the beginning and 85.6MB in the end (delta: 9.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Witness Printer took 109.99ms. Allocated memory is still 199.2MB. Free memory was 85.6MB in the beginning and 163.7MB in the end (delta: -78.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 789]: 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, 101 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: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 17 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 0.5s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 19:24:08,931 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