./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/singleton_with-uninit-problems.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/pthread/singleton_with-uninit-problems.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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:25:37,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:25:37,692 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:25:37,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:25:37,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:25:37,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:25:37,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:25:37,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:25:37,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:25:37,730 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:25:37,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:25:37,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:25:37,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:25:37,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:25:37,731 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:25:37,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:25:37,731 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:25:37,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:25:37,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:25:37,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:25:37,734 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:25:37,734 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:25:37,734 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:25:37,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:25:37,735 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:25:37,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:25:37,735 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:25:37,735 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:25:37,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:25:37,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:25:37,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:25:37,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:25:37,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:25:37,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:25:37,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:25:37,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:25:37,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:25:37,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:25:37,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:25:37,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:25:37,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:25:37,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:25:37,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2024-10-11 19:25:37,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:25:37,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:25:37,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:25:37,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:25:37,966 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:25:37,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2024-10-11 19:25:39,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:25:39,558 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:25:39,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2024-10-11 19:25:39,588 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/45e48fbf1/a5a58f98768c4744a46c745ff7dc54ad/FLAG3e7ad54f4 [2024-10-11 19:25:39,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/45e48fbf1/a5a58f98768c4744a46c745ff7dc54ad [2024-10-11 19:25:39,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:25:39,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:25:39,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:25:39,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:25:39,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:25:39,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:25:39" (1/1) ... [2024-10-11 19:25:39,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392291b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:39, skipping insertion in model container [2024-10-11 19:25:39,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:25:39" (1/1) ... [2024-10-11 19:25:39,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:25:40,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:25:40,102 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:25:40,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:25:40,264 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:25:40,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40 WrapperNode [2024-10-11 19:25:40,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:25:40,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:25:40,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:25:40,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:25:40,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,348 INFO L138 Inliner]: procedures = 323, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2024-10-11 19:25:40,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:25:40,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:25:40,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:25:40,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:25:40,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,393 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-10-11 19:25:40,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:25:40,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:25:40,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:25:40,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:25:40,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (1/1) ... [2024-10-11 19:25:40,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:25:40,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:25:40,479 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 19:25:40,484 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 19:25:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:25:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:25:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 19:25:40,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 19:25:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-10-11 19:25:40,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-10-11 19:25:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:25:40,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:25:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:25:40,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:25:40,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 19:25:40,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 19:25:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 19:25:40,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 19:25:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:25:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:25:40,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:25:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 19:25:40,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:25:40,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:25:40,557 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 19:25:40,668 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:25:40,670 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:25:40,806 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:25:40,807 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:25:40,878 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:25:40,879 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:25:40,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:25:40 BoogieIcfgContainer [2024-10-11 19:25:40,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:25:40,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:25:40,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:25:40,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:25:40,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:25:39" (1/3) ... [2024-10-11 19:25:40,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9bda4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:25:40, skipping insertion in model container [2024-10-11 19:25:40,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:40" (2/3) ... [2024-10-11 19:25:40,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9bda4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:25:40, skipping insertion in model container [2024-10-11 19:25:40,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:25:40" (3/3) ... [2024-10-11 19:25:40,891 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2024-10-11 19:25:40,907 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:25:40,907 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-11 19:25:40,907 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:25:41,012 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-10-11 19:25:41,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 287 flow [2024-10-11 19:25:41,076 INFO L124 PetriNetUnfolderBase]: 8/67 cut-off events. [2024-10-11 19:25:41,076 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 19:25:41,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 67 events. 8/67 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 76. Up to 3 conditions per place. [2024-10-11 19:25:41,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 287 flow [2024-10-11 19:25:41,086 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 66 transitions, 183 flow [2024-10-11 19:25:41,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:25:41,105 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;@44d94a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:25:41,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-11 19:25:41,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:25:41,115 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-10-11 19:25:41,115 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 19:25:41,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:25:41,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:25:41,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-11 19:25:41,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:25:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash 523408103, now seen corresponding path program 1 times [2024-10-11 19:25:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:25:41,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137229449] [2024-10-11 19:25:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:25:41,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:25:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:25:41,452 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 19:25:41,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:25:41,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137229449] [2024-10-11 19:25:41,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137229449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:25:41,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:25:41,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:25:41,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953609834] [2024-10-11 19:25:41,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:25:41,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:25:41,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:25:41,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:25:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:25:41,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 97 [2024-10-11 19:25:41,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:41,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:25:41,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 97 [2024-10-11 19:25:41,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:25:42,084 INFO L124 PetriNetUnfolderBase]: 4536/6226 cut-off events. [2024-10-11 19:25:42,085 INFO L125 PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES. [2024-10-11 19:25:42,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13015 conditions, 6226 events. 4536/6226 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 32317 event pairs, 3591 based on Foata normal form. 2/4551 useless extension candidates. Maximal degree in co-relation 12980. Up to 6078 conditions per place. [2024-10-11 19:25:42,129 INFO L140 encePairwiseOnDemand]: 88/97 looper letters, 46 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2024-10-11 19:25:42,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 263 flow [2024-10-11 19:25:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:25:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:25:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-10-11 19:25:42,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41580756013745707 [2024-10-11 19:25:42,144 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 183 flow. Second operand 3 states and 121 transitions. [2024-10-11 19:25:42,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 263 flow [2024-10-11 19:25:42,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 59 transitions, 229 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-11 19:25:42,162 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 133 flow [2024-10-11 19:25:42,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2024-10-11 19:25:42,170 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -17 predicate places. [2024-10-11 19:25:42,171 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 133 flow [2024-10-11 19:25:42,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:42,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:25:42,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:25:42,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:25:42,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-11 19:25:42,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:25:42,174 INFO L85 PathProgramCache]: Analyzing trace with hash -333682488, now seen corresponding path program 1 times [2024-10-11 19:25:42,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:25:42,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983013526] [2024-10-11 19:25:42,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:25:42,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:25:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:25:42,295 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 19:25:42,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:25:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983013526] [2024-10-11 19:25:42,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983013526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:25:42,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:25:42,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:25:42,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257671536] [2024-10-11 19:25:42,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:25:42,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:25:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:25:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:25:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:25:42,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 97 [2024-10-11 19:25:42,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:42,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:25:42,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 97 [2024-10-11 19:25:42,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:25:42,492 INFO L124 PetriNetUnfolderBase]: 1485/2129 cut-off events. [2024-10-11 19:25:42,493 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 19:25:42,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4288 conditions, 2129 events. 1485/2129 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9229 event pairs, 1115 based on Foata normal form. 0/1984 useless extension candidates. Maximal degree in co-relation 2395. Up to 2057 conditions per place. [2024-10-11 19:25:42,500 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 42 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2024-10-11 19:25:42,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 211 flow [2024-10-11 19:25:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:25:42,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:25:42,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-10-11 19:25:42,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3951890034364261 [2024-10-11 19:25:42,504 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 133 flow. Second operand 3 states and 115 transitions. [2024-10-11 19:25:42,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 211 flow [2024-10-11 19:25:42,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:25:42,506 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 122 flow [2024-10-11 19:25:42,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2024-10-11 19:25:42,507 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -22 predicate places. [2024-10-11 19:25:42,508 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 122 flow [2024-10-11 19:25:42,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:42,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:25:42,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:25:42,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:25:42,509 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-11 19:25:42,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:25:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1008973628, now seen corresponding path program 1 times [2024-10-11 19:25:42,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:25:42,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854980116] [2024-10-11 19:25:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:25:42,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:25:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:25:42,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 19:25:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:25:42,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 19:25:42,619 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 19:25:42,620 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (28 of 29 remaining) [2024-10-11 19:25:42,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 29 remaining) [2024-10-11 19:25:42,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 29 remaining) [2024-10-11 19:25:42,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 29 remaining) [2024-10-11 19:25:42,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2024-10-11 19:25:42,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 29 remaining) [2024-10-11 19:25:42,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2024-10-11 19:25:42,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2024-10-11 19:25:42,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2024-10-11 19:25:42,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2024-10-11 19:25:42,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2024-10-11 19:25:42,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2024-10-11 19:25:42,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2024-10-11 19:25:42,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2024-10-11 19:25:42,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (14 of 29 remaining) [2024-10-11 19:25:42,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 29 remaining) [2024-10-11 19:25:42,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 29 remaining) [2024-10-11 19:25:42,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2024-10-11 19:25:42,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2024-10-11 19:25:42,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 29 remaining) [2024-10-11 19:25:42,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 29 remaining) [2024-10-11 19:25:42,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:25:42,628 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 19:25:42,691 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:25:42,694 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:25:42,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:25:42 BasicIcfg [2024-10-11 19:25:42,700 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:25:42,700 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:25:42,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:25:42,701 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:25:42,701 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:25:40" (3/4) ... [2024-10-11 19:25:42,703 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 19:25:42,704 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:25:42,705 INFO L158 Benchmark]: Toolchain (without parser) took 3090.38ms. Allocated memory was 182.5MB in the beginning and 266.3MB in the end (delta: 83.9MB). Free memory was 109.1MB in the beginning and 135.3MB in the end (delta: -26.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2024-10-11 19:25:42,705 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:25:42,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.90ms. Allocated memory is still 182.5MB. Free memory was 108.9MB in the beginning and 131.5MB in the end (delta: -22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:25:42,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.22ms. Allocated memory is still 182.5MB. Free memory was 131.5MB in the beginning and 129.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:25:42,710 INFO L158 Benchmark]: Boogie Preprocessor took 70.37ms. Allocated memory is still 182.5MB. Free memory was 129.2MB in the beginning and 126.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:25:42,710 INFO L158 Benchmark]: RCFGBuilder took 457.62ms. Allocated memory is still 182.5MB. Free memory was 126.8MB in the beginning and 100.8MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-11 19:25:42,710 INFO L158 Benchmark]: TraceAbstraction took 1819.39ms. Allocated memory was 182.5MB in the beginning and 266.3MB in the end (delta: 83.9MB). Free memory was 100.8MB in the beginning and 136.3MB in the end (delta: -35.5MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-10-11 19:25:42,710 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 266.3MB. Free memory was 136.3MB in the beginning and 135.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:25:42,712 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 182.5MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.90ms. Allocated memory is still 182.5MB. Free memory was 108.9MB in the beginning and 131.5MB in the end (delta: -22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.22ms. Allocated memory is still 182.5MB. Free memory was 131.5MB in the beginning and 129.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.37ms. Allocated memory is still 182.5MB. Free memory was 129.2MB in the beginning and 126.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.62ms. Allocated memory is still 182.5MB. Free memory was 126.8MB in the beginning and 100.8MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1819.39ms. Allocated memory was 182.5MB in the beginning and 266.3MB in the end (delta: 83.9MB). Free memory was 100.8MB in the beginning and 136.3MB in the end (delta: -35.5MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 266.3MB. Free memory was 136.3MB in the beginning and 135.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1159]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1159. Possible FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [\old(arg)={0:0}, t=-2147483648, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, t1=-2147483647, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, v={-1:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, v={-1:0}] [L1133] 3 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, v={-1:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, v={-1:0}] [L1140] 4 v[0] = 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, v={-1:0}] [L1135] 3 return 0; [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, v={-1:0}] [L1133] 5 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, v={-1:0}] [L1142] 4 return 0; [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1133] 6 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1135] 5 return 0; [L1135] 6 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, t=-2147483648, v={-1:0}] [L1164] EXPR 0 v[0] [L1164] EXPR 0 v[0] == 'X' || v[0] == 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, t=-2147483648, v={-1:0}] [L1164] EXPR 0 v[0] == 'X' || v[0] == 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X' || v[0] == 'Y') [L1123] COND FALSE 0 !(!expression) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, v={-1:0}] [L1164] RET 0 __VERIFIER_assert(v[0] == 'X' || v[0] == 'Y') [L1165] 0 return 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2147483647, t2=-2147483646, t3=-2147483645, t4=-2147483644, t5=-2147483643, t=-2147483648, v={-1:0}] - UnprovableResult [Line: 1149]: 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. - UnprovableResult [Line: 1147]: 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. - UnprovableResult [Line: 1150]: 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. - UnprovableResult [Line: 1152]: 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. - UnprovableResult [Line: 1151]: 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. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1162]: 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. - UnprovableResult [Line: 1149]: 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. - UnprovableResult [Line: 1150]: 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. - UnprovableResult [Line: 1151]: 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. - UnprovableResult [Line: 1152]: 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. - UnprovableResult [Line: 1147]: 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 11 procedures, 110 locations, 29 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 5 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 19:25:42,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 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/pthread/singleton_with-uninit-problems.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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:25:44,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:25:44,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:25:44,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:25:44,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:25:44,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:25:44,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:25:44,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:25:44,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:25:44,970 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:25:44,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:25:44,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:25:44,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:25:44,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:25:44,972 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:25:44,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:25:44,972 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:25:44,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:25:44,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:25:44,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:25:44,974 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:25:44,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:25:44,975 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:25:44,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:25:44,975 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:25:44,976 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:25:44,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:25:44,976 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:25:44,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:25:44,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:25:44,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:25:44,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:25:44,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:25:44,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:25:44,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:25:44,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:25:44,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:25:44,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:25:44,979 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:25:44,979 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:25:44,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:25:44,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:25:44,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:25:44,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:25:44,980 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:25:44,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2024-10-11 19:25:45,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:25:45,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:25:45,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:25:45,291 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:25:45,292 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:25:45,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2024-10-11 19:25:46,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:25:46,971 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:25:46,972 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2024-10-11 19:25:46,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/759c504e1/be359fb512c44c32b389686b4338d8af/FLAG9395c9c18 [2024-10-11 19:25:47,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/759c504e1/be359fb512c44c32b389686b4338d8af [2024-10-11 19:25:47,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:25:47,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:25:47,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:25:47,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:25:47,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:25:47,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@239e8988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47, skipping insertion in model container [2024-10-11 19:25:47,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:25:47,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:25:47,758 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:25:47,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:25:47,869 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:25:47,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47 WrapperNode [2024-10-11 19:25:47,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:25:47,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:25:47,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:25:47,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:25:47,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,919 INFO L138 Inliner]: procedures = 324, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 37 [2024-10-11 19:25:47,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:25:47,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:25:47,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:25:47,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:25:47,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,957 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-10-11 19:25:47,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:25:47,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:25:47,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:25:47,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:25:47,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (1/1) ... [2024-10-11 19:25:47,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:25:47,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:25:48,011 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 19:25:48,016 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 19:25:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:25:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:25:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:25:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-10-11 19:25:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-10-11 19:25:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:25:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:25:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:25:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-10-11 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-10-11 19:25:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:25:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:25:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 19:25:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 19:25:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:25:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:25:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:25:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:25:48,055 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 19:25:48,167 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:25:48,172 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:25:48,339 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:25:48,339 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:25:48,468 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:25:48,468 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:25:48,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:25:48 BoogieIcfgContainer [2024-10-11 19:25:48,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:25:48,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:25:48,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:25:48,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:25:48,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:25:47" (1/3) ... [2024-10-11 19:25:48,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a2a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:25:48, skipping insertion in model container [2024-10-11 19:25:48,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:25:47" (2/3) ... [2024-10-11 19:25:48,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a2a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:25:48, skipping insertion in model container [2024-10-11 19:25:48,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:25:48" (3/3) ... [2024-10-11 19:25:48,478 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2024-10-11 19:25:48,491 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:25:48,492 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-11 19:25:48,492 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:25:48,614 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-10-11 19:25:48,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 287 flow [2024-10-11 19:25:48,685 INFO L124 PetriNetUnfolderBase]: 8/67 cut-off events. [2024-10-11 19:25:48,686 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 19:25:48,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 67 events. 8/67 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 76. Up to 3 conditions per place. [2024-10-11 19:25:48,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 287 flow [2024-10-11 19:25:48,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 66 transitions, 183 flow [2024-10-11 19:25:48,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:25:48,711 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;@14e464ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:25:48,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-11 19:25:48,720 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:25:48,720 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-10-11 19:25:48,720 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 19:25:48,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:25:48,723 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:25:48,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-11 19:25:48,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:25:48,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1758635607, now seen corresponding path program 1 times [2024-10-11 19:25:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:25:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367748348] [2024-10-11 19:25:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:25:48,740 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 19:25:48,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:25:48,743 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 19:25:48,769 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 19:25:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:25:48,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:25:48,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:25:48,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:25:48,935 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 19:25:48,935 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:25:48,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:25:48,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367748348] [2024-10-11 19:25:48,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367748348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:25:48,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:25:48,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:25:48,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136560793] [2024-10-11 19:25:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:25:48,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:25:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:25:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:25:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:25:48,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 97 [2024-10-11 19:25:48,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:48,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:25:48,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 97 [2024-10-11 19:25:48,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:25:49,713 INFO L124 PetriNetUnfolderBase]: 4536/6226 cut-off events. [2024-10-11 19:25:49,713 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2024-10-11 19:25:49,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13015 conditions, 6226 events. 4536/6226 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 32465 event pairs, 3591 based on Foata normal form. 2/4551 useless extension candidates. Maximal degree in co-relation 12980. Up to 6078 conditions per place. [2024-10-11 19:25:49,757 INFO L140 encePairwiseOnDemand]: 88/97 looper letters, 46 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2024-10-11 19:25:49,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 263 flow [2024-10-11 19:25:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:25:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:25:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-10-11 19:25:49,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41580756013745707 [2024-10-11 19:25:49,770 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 183 flow. Second operand 3 states and 121 transitions. [2024-10-11 19:25:49,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 263 flow [2024-10-11 19:25:49,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 59 transitions, 229 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-11 19:25:49,786 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 133 flow [2024-10-11 19:25:49,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2024-10-11 19:25:49,793 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -17 predicate places. [2024-10-11 19:25:49,793 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 133 flow [2024-10-11 19:25:49,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:49,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:25:49,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:25:49,800 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 19:25:49,996 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 19:25:49,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-11 19:25:49,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:25:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1679241098, now seen corresponding path program 1 times [2024-10-11 19:25:50,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:25:50,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428292490] [2024-10-11 19:25:50,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:25:50,001 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 19:25:50,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:25:50,007 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 19:25:50,008 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 19:25:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:25:50,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:25:50,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:25:50,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:25:50,258 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 19:25:50,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:25:50,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:25:50,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428292490] [2024-10-11 19:25:50,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428292490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:25:50,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:25:50,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:25:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145333691] [2024-10-11 19:25:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:25:50,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:25:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:25:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:25:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:25:50,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 97 [2024-10-11 19:25:50,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:50,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:25:50,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 97 [2024-10-11 19:25:50,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:25:50,478 INFO L124 PetriNetUnfolderBase]: 1485/2129 cut-off events. [2024-10-11 19:25:50,480 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 19:25:50,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4288 conditions, 2129 events. 1485/2129 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9288 event pairs, 1115 based on Foata normal form. 0/1984 useless extension candidates. Maximal degree in co-relation 2395. Up to 2057 conditions per place. [2024-10-11 19:25:50,489 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 42 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2024-10-11 19:25:50,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 211 flow [2024-10-11 19:25:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:25:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:25:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-10-11 19:25:50,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3951890034364261 [2024-10-11 19:25:50,492 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 133 flow. Second operand 3 states and 115 transitions. [2024-10-11 19:25:50,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 211 flow [2024-10-11 19:25:50,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:25:50,495 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 122 flow [2024-10-11 19:25:50,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2024-10-11 19:25:50,496 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -22 predicate places. [2024-10-11 19:25:50,496 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 122 flow [2024-10-11 19:25:50,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 19:25:50,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:25:50,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:25:50,503 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 19:25:50,699 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 19:25:50,700 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 26 more)] === [2024-10-11 19:25:50,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:25:50,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2005803514, now seen corresponding path program 1 times [2024-10-11 19:25:50,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:25:50,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113162228] [2024-10-11 19:25:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:25:50,703 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 19:25:50,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:25:50,705 INFO L229 MonitoredProcess]: Starting monitored process 4 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 19:25:50,711 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 (4)] Waiting until timeout for monitored process [2024-10-11 19:25:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:25:50,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 19:25:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:25:50,876 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 19:25:50,877 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 19:25:50,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (28 of 29 remaining) [2024-10-11 19:25:50,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 29 remaining) [2024-10-11 19:25:50,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 29 remaining) [2024-10-11 19:25:50,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 29 remaining) [2024-10-11 19:25:50,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2024-10-11 19:25:50,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2024-10-11 19:25:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (14 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2024-10-11 19:25:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 29 remaining) [2024-10-11 19:25:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 29 remaining) [2024-10-11 19:25:50,888 INFO L540 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 (4)] Forceful destruction successful, exit code 0 [2024-10-11 19:25:51,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 19:25:51,084 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 19:25:51,141 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:25:51,141 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:25:51,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:25:51 BasicIcfg [2024-10-11 19:25:51,145 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:25:51,145 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:25:51,145 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:25:51,146 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:25:51,146 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:25:48" (3/4) ... [2024-10-11 19:25:51,147 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 19:25:51,148 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:25:51,148 INFO L158 Benchmark]: Toolchain (without parser) took 3878.83ms. Allocated memory was 65.0MB in the beginning and 159.4MB in the end (delta: 94.4MB). Free memory was 39.4MB in the beginning and 63.5MB in the end (delta: -24.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-10-11 19:25:51,149 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:25:51,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.70ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 39.2MB in the beginning and 49.8MB in the end (delta: -10.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 19:25:51,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.98ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 47.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:25:51,150 INFO L158 Benchmark]: Boogie Preprocessor took 58.08ms. Allocated memory is still 94.4MB. Free memory was 47.4MB in the beginning and 71.8MB in the end (delta: -24.5MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-10-11 19:25:51,150 INFO L158 Benchmark]: RCFGBuilder took 488.75ms. Allocated memory is still 94.4MB. Free memory was 71.8MB in the beginning and 39.7MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-11 19:25:51,150 INFO L158 Benchmark]: TraceAbstraction took 2674.72ms. Allocated memory was 94.4MB in the beginning and 159.4MB in the end (delta: 65.0MB). Free memory was 38.9MB in the beginning and 63.7MB in the end (delta: -24.7MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-10-11 19:25:51,151 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 159.4MB. Free memory was 63.7MB in the beginning and 63.5MB in the end (delta: 127.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:25:51,152 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.70ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 39.2MB in the beginning and 49.8MB in the end (delta: -10.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.98ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 47.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.08ms. Allocated memory is still 94.4MB. Free memory was 47.4MB in the beginning and 71.8MB in the end (delta: -24.5MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * RCFGBuilder took 488.75ms. Allocated memory is still 94.4MB. Free memory was 71.8MB in the beginning and 39.7MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2674.72ms. Allocated memory was 94.4MB in the beginning and 159.4MB in the end (delta: 65.0MB). Free memory was 38.9MB in the beginning and 63.7MB in the end (delta: -24.7MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 159.4MB. Free memory was 63.7MB in the beginning and 63.5MB in the end (delta: 127.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1159]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1159. Possible FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [\old(arg)={0:0}, t=268435456, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, t1=268435457, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=268435457, v={6:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, v={6:0}] [L1133] 3 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, v={6:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, v={6:0}] [L1140] 4 v[0] = 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, v={6:0}] [L1135] 3 return 0; [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, v={6:0}] [L1133] 5 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, v={6:0}] [L1142] 4 return 0; [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1133] 6 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1135] 5 return 0; [L1135] 6 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, t=268435456, v={6:0}] [L1164] EXPR 0 v[0] [L1164] EXPR 0 v[0] == 'X' || v[0] == 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, t=268435456, v={6:0}] [L1164] EXPR 0 v[0] == 'X' || v[0] == 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X' || v[0] == 'Y') [L1123] COND FALSE 0 !(!expression) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, v={6:0}] [L1164] RET 0 __VERIFIER_assert(v[0] == 'X' || v[0] == 'Y') [L1165] 0 return 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=268435457, t2=268435458, t3=268435459, t4=268435460, t5=268435461, t=268435456, v={6:0}] - UnprovableResult [Line: 1149]: 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. - UnprovableResult [Line: 1147]: 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. - UnprovableResult [Line: 1150]: 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. - UnprovableResult [Line: 1152]: 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. - UnprovableResult [Line: 1151]: 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. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1162]: 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. - UnprovableResult [Line: 1147]: 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. - UnprovableResult [Line: 1149]: 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. - UnprovableResult [Line: 1150]: 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. - UnprovableResult [Line: 1151]: 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. - UnprovableResult [Line: 1152]: 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 11 procedures, 110 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 9 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 19:25:51,181 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