./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:49:32,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:49:32,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:49:32,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:49:32,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:49:32,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:49:32,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:49:32,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:49:32,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:49:32,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:49:32,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:49:32,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:49:32,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:49:32,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:49:32,389 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:49:32,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:49:32,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:49:32,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:49:32,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:49:32,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:49:32,390 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:49:32,391 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:49:32,391 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:49:32,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:49:32,391 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:49:32,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:49:32,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:49:32,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:49:32,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:49:32,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:49:32,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:49:32,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:49:32,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:49:32,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:49:32,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:49:32,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:49:32,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:49:32,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:49:32,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:49:32,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:49:32,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:49:32,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:49:32,398 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2024-10-11 19:49:32,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:49:32,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:49:32,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:49:32,710 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:49:32,710 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:49:32,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-10-11 19:49:34,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:49:34,447 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:49:34,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-10-11 19:49:34,473 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ab5ee5e65/1d4b483725bb483199b2f0a59668da9d/FLAG017974bfd [2024-10-11 19:49:34,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ab5ee5e65/1d4b483725bb483199b2f0a59668da9d [2024-10-11 19:49:34,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:49:34,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:49:34,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:49:34,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:49:34,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:49:34,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:49:34" (1/1) ... [2024-10-11 19:49:34,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae23fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:34, skipping insertion in model container [2024-10-11 19:49:34,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:49:34" (1/1) ... [2024-10-11 19:49:34,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:49:35,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:49:35,190 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:49:35,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:49:35,292 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:49:35,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35 WrapperNode [2024-10-11 19:49:35,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:49:35,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:49:35,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:49:35,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:49:35,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,339 INFO L138 Inliner]: procedures = 161, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2024-10-11 19:49:35,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:49:35,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:49:35,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:49:35,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:49:35,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,373 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]. [2024-10-11 19:49:35,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:49:35,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:49:35,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:49:35,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:49:35,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (1/1) ... [2024-10-11 19:49:35,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:49:35,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:49:35,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:49:35,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:49:35,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:49:35,481 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 19:49:35,481 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 19:49:35,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:49:35,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:49:35,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:49:35,483 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:49:35,590 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:49:35,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:49:35,719 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:49:35,719 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:49:35,793 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:49:35,794 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:49:35,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:49:35 BoogieIcfgContainer [2024-10-11 19:49:35,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:49:35,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:49:35,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:49:35,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:49:35,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:49:34" (1/3) ... [2024-10-11 19:49:35,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da8c709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:49:35, skipping insertion in model container [2024-10-11 19:49:35,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:35" (2/3) ... [2024-10-11 19:49:35,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da8c709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:49:35, skipping insertion in model container [2024-10-11 19:49:35,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:49:35" (3/3) ... [2024-10-11 19:49:35,806 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-10-11 19:49:35,824 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:49:35,825 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:49:35,825 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:49:35,864 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:49:35,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 15 transitions, 34 flow [2024-10-11 19:49:35,919 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-10-11 19:49:35,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:49:35,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 14 events. 2/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-10-11 19:49:35,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 15 transitions, 34 flow [2024-10-11 19:49:35,929 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 14 transitions, 31 flow [2024-10-11 19:49:35,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:49:35,953 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;@72603952, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:49:35,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 19:49:35,959 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:49:35,960 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-10-11 19:49:35,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:49:35,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:49:35,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:49:35,962 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-11 19:49:35,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:49:35,969 INFO L85 PathProgramCache]: Analyzing trace with hash 3922989, now seen corresponding path program 1 times [2024-10-11 19:49:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:49:35,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874174278] [2024-10-11 19:49:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:49:35,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:49:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:49:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:49:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:49:36,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874174278] [2024-10-11 19:49:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874174278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:49:36,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:49:36,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:49:36,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32128000] [2024-10-11 19:49:36,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:49:36,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:49:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:49:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:49:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:49:36,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 15 [2024-10-11 19:49:36,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-11 19:49:36,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:49:36,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 15 [2024-10-11 19:49:36,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:49:36,305 INFO L124 PetriNetUnfolderBase]: 6/24 cut-off events. [2024-10-11 19:49:36,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:49:36,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 24 events. 6/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 6 based on Foata normal form. 5/28 useless extension candidates. Maximal degree in co-relation 39. Up to 19 conditions per place. [2024-10-11 19:49:36,309 INFO L140 encePairwiseOnDemand]: 11/15 looper letters, 5 selfloop transitions, 1 changer transitions 2/10 dead transitions. [2024-10-11 19:49:36,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 10 transitions, 37 flow [2024-10-11 19:49:36,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:49:36,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:49:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2024-10-11 19:49:36,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2024-10-11 19:49:36,324 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 31 flow. Second operand 3 states and 22 transitions. [2024-10-11 19:49:36,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 10 transitions, 37 flow [2024-10-11 19:49:36,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 10 transitions, 36 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:49:36,330 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 20 flow [2024-10-11 19:49:36,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2024-10-11 19:49:36,336 INFO L277 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2024-10-11 19:49:36,339 INFO L471 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 20 flow [2024-10-11 19:49:36,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-11 19:49:36,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:49:36,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:49:36,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:49:36,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-11 19:49:36,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:49:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash -524813869, now seen corresponding path program 1 times [2024-10-11 19:49:36,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:49:36,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664746648] [2024-10-11 19:49:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:49:36,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:49:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:49:36,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 19:49:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:49:36,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 19:49:36,411 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 19:49:36,413 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-11 19:49:36,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-11 19:49:36,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 19:49:36,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2024-10-11 19:49:36,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:49:36,417 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 19:49:36,441 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:49:36,441 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:49:36,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:49:36 BasicIcfg [2024-10-11 19:49:36,450 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:49:36,451 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:49:36,451 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:49:36,452 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:49:36,453 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:49:35" (3/4) ... [2024-10-11 19:49:36,455 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 19:49:36,456 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:49:36,457 INFO L158 Benchmark]: Toolchain (without parser) took 1692.37ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 89.0MB in the beginning and 130.0MB in the end (delta: -40.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-10-11 19:49:36,457 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:49:36,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.05ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 68.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 19:49:36,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 146.8MB. Free memory was 68.6MB in the beginning and 66.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:49:36,460 INFO L158 Benchmark]: Boogie Preprocessor took 48.56ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:49:36,460 INFO L158 Benchmark]: RCFGBuilder took 403.36ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 64.8MB in the beginning and 160.3MB in the end (delta: -95.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-10-11 19:49:36,462 INFO L158 Benchmark]: TraceAbstraction took 652.92ms. Allocated memory is still 195.0MB. Free memory was 159.3MB in the beginning and 130.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-11 19:49:36,462 INFO L158 Benchmark]: Witness Printer took 5.43ms. Allocated memory is still 195.0MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:49:36,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.05ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 68.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 146.8MB. Free memory was 68.6MB in the beginning and 66.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.56ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.36ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 64.8MB in the beginning and 160.3MB in the end (delta: -95.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * TraceAbstraction took 652.92ms. Allocated memory is still 195.0MB. Free memory was 159.3MB in the beginning and 130.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.43ms. Allocated memory is still 195.0MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "36-apron_41-threadenter-no-locals_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 23 locations, 4 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 19:49:36,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:49:38,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:49:38,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:49:38,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:49:38,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:49:38,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:49:38,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:49:38,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:49:38,972 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:49:38,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:49:38,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:49:38,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:49:38,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:49:38,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:49:38,977 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:49:38,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:49:38,977 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:49:38,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:49:38,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:49:38,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:49:38,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:49:38,983 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:49:38,983 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:49:38,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:49:38,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:49:38,984 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:49:38,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:49:38,985 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:49:38,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:49:38,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:49:38,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:49:38,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:49:38,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:49:38,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:49:38,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:49:38,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:49:38,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:49:38,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:49:38,989 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:49:38,989 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:49:38,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:49:38,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:49:38,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:49:38,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:49:38,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:49:38,991 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2024-10-11 19:49:39,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:49:39,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:49:39,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:49:39,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:49:39,377 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:49:39,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-10-11 19:49:41,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:49:41,303 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:49:41,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-10-11 19:49:41,325 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b3b676285/04fd407f0499455ab7fd423817ce21a6/FLAG6e81e0d9a [2024-10-11 19:49:41,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b3b676285/04fd407f0499455ab7fd423817ce21a6 [2024-10-11 19:49:41,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:49:41,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:49:41,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:49:41,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:49:41,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:49:41,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:49:41" (1/1) ... [2024-10-11 19:49:41,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269b47fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:41, skipping insertion in model container [2024-10-11 19:49:41,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:49:41" (1/1) ... [2024-10-11 19:49:41,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:49:42,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:49:42,071 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:49:42,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:49:42,165 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:49:42,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42 WrapperNode [2024-10-11 19:49:42,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:49:42,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:49:42,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:49:42,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:49:42,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,220 INFO L138 Inliner]: procedures = 162, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2024-10-11 19:49:42,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:49:42,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:49:42,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:49:42,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:49:42,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,250 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]. [2024-10-11 19:49:42,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:49:42,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:49:42,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:49:42,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:49:42,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (1/1) ... [2024-10-11 19:49:42,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:49:42,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:49:42,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:49:42,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:49:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:49:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 19:49:42,368 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 19:49:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:49:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:49:42,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:49:42,370 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:49:42,486 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:49:42,490 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:49:42,609 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:49:42,610 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:49:42,707 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:49:42,708 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:49:42,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:49:42 BoogieIcfgContainer [2024-10-11 19:49:42,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:49:42,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:49:42,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:49:42,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:49:42,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:49:41" (1/3) ... [2024-10-11 19:49:42,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a28caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:49:42, skipping insertion in model container [2024-10-11 19:49:42,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:49:42" (2/3) ... [2024-10-11 19:49:42,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a28caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:49:42, skipping insertion in model container [2024-10-11 19:49:42,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:49:42" (3/3) ... [2024-10-11 19:49:42,718 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-10-11 19:49:42,735 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:49:42,736 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:49:42,736 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:49:42,783 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:49:42,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 15 transitions, 34 flow [2024-10-11 19:49:42,844 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-10-11 19:49:42,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:49:42,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 14 events. 2/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2024-10-11 19:49:42,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 15 transitions, 34 flow [2024-10-11 19:49:42,855 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 14 transitions, 31 flow [2024-10-11 19:49:42,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:49:42,878 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;@fb9ed31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:49:42,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 19:49:42,884 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:49:42,886 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-10-11 19:49:42,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:49:42,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:49:42,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:49:42,888 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-11 19:49:42,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:49:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash 3922989, now seen corresponding path program 1 times [2024-10-11 19:49:42,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:49:42,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168669958] [2024-10-11 19:49:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:49:42,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:49:42,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:49:42,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:49:42,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 19:49:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:49:43,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:49:43,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:49:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:49:43,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:49:43,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:49:43,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168669958] [2024-10-11 19:49:43,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168669958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:49:43,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:49:43,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:49:43,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263885587] [2024-10-11 19:49:43,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:49:43,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:49:43,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:49:43,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:49:43,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:49:43,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 15 [2024-10-11 19:49:43,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-11 19:49:43,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:49:43,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 15 [2024-10-11 19:49:43,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:49:43,112 INFO L124 PetriNetUnfolderBase]: 6/24 cut-off events. [2024-10-11 19:49:43,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:49:43,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 24 events. 6/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 6 based on Foata normal form. 5/28 useless extension candidates. Maximal degree in co-relation 39. Up to 19 conditions per place. [2024-10-11 19:49:43,115 INFO L140 encePairwiseOnDemand]: 11/15 looper letters, 5 selfloop transitions, 1 changer transitions 2/10 dead transitions. [2024-10-11 19:49:43,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 10 transitions, 37 flow [2024-10-11 19:49:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:49:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:49:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2024-10-11 19:49:43,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2024-10-11 19:49:43,129 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 31 flow. Second operand 3 states and 22 transitions. [2024-10-11 19:49:43,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 10 transitions, 37 flow [2024-10-11 19:49:43,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 10 transitions, 36 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:49:43,134 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 20 flow [2024-10-11 19:49:43,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2024-10-11 19:49:43,140 INFO L277 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2024-10-11 19:49:43,143 INFO L471 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 20 flow [2024-10-11 19:49:43,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-11 19:49:43,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:49:43,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:49:43,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 19:49:43,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:49:43,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-11 19:49:43,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:49:43,348 INFO L85 PathProgramCache]: Analyzing trace with hash -524813869, now seen corresponding path program 1 times [2024-10-11 19:49:43,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:49:43,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618476195] [2024-10-11 19:49:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:49:43,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:49:43,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:49:43,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:49:43,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 19:49:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:49:43,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 19:49:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:49:43,441 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 19:49:43,442 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 19:49:43,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-11 19:49:43,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-11 19:49:43,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 19:49:43,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2024-10-11 19:49:43,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-11 19:49:43,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:49:43,647 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 19:49:43,665 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:49:43,665 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:49:43,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:49:43 BasicIcfg [2024-10-11 19:49:43,670 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:49:43,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:49:43,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:49:43,671 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:49:43,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:49:42" (3/4) ... [2024-10-11 19:49:43,673 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 19:49:43,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:49:43,674 INFO L158 Benchmark]: Toolchain (without parser) took 2056.13ms. Allocated memory is still 71.3MB. Free memory was 35.6MB in the beginning and 29.5MB in the end (delta: 6.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-10-11 19:49:43,675 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 52.4MB. Free memory is still 29.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:49:43,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.89ms. Allocated memory is still 71.3MB. Free memory was 35.4MB in the beginning and 31.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-10-11 19:49:43,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.51ms. Allocated memory is still 71.3MB. Free memory was 31.9MB in the beginning and 29.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:49:43,676 INFO L158 Benchmark]: Boogie Preprocessor took 55.86ms. Allocated memory is still 71.3MB. Free memory was 29.8MB in the beginning and 27.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:49:43,676 INFO L158 Benchmark]: RCFGBuilder took 430.39ms. Allocated memory is still 71.3MB. Free memory was 27.7MB in the beginning and 35.7MB in the end (delta: -8.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-10-11 19:49:43,677 INFO L158 Benchmark]: TraceAbstraction took 959.74ms. Allocated memory is still 71.3MB. Free memory was 35.0MB in the beginning and 29.9MB in the end (delta: 5.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-10-11 19:49:43,677 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 71.3MB. Free memory was 29.9MB in the beginning and 29.5MB in the end (delta: 401.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:49:43,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 52.4MB. Free memory is still 29.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.89ms. Allocated memory is still 71.3MB. Free memory was 35.4MB in the beginning and 31.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.51ms. Allocated memory is still 71.3MB. Free memory was 31.9MB in the beginning and 29.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.86ms. Allocated memory is still 71.3MB. Free memory was 29.8MB in the beginning and 27.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.39ms. Allocated memory is still 71.3MB. Free memory was 27.7MB in the beginning and 35.7MB in the end (delta: -8.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 959.74ms. Allocated memory is still 71.3MB. Free memory was 35.0MB in the beginning and 29.9MB in the end (delta: 5.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 71.3MB. Free memory was 29.9MB in the beginning and 29.5MB in the end (delta: 401.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "36-apron_41-threadenter-no-locals_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: 687]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 23 locations, 4 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 19:49:43,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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: UNKNOWN: Overapproximated counterexample