./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-memsafety/fillarray.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:54:07,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:54:07,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:54:07,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:54:07,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:54:07,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:54:07,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:54:07,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:54:07,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:54:07,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:54:07,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:54:07,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:54:07,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:54:07,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:54:07,155 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:54:07,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:54:07,155 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:54:07,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:54:07,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:54:07,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:54:07,156 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:54:07,156 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:54:07,156 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:54:07,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:54:07,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:54:07,157 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:54:07,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:54:07,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:54:07,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:54:07,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:54:07,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:54:07,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:54:07,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:54:07,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:54:07,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:54:07,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:54:07,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:54:07,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:54:07,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:54:07,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:54:07,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:54:07,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:54:07,162 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2024-11-22 21:54:07,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:54:07,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:54:07,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:54:07,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:54:07,403 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:54:07,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray.i [2024-11-22 21:54:08,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:54:08,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:54:08,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray.i [2024-11-22 21:54:08,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bb5e3ff/4a0fc2ba5797417e94194562391a9a71/FLAG4a36f3f7c [2024-11-22 21:54:09,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bb5e3ff/4a0fc2ba5797417e94194562391a9a71 [2024-11-22 21:54:09,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:54:09,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:54:09,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:54:09,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:54:09,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:54:09,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327f5033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09, skipping insertion in model container [2024-11-22 21:54:09,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:54:09,514 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:54:09,521 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:54:09,524 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 21:54:09,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:54:09,536 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:54:09,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:54:09,619 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:54:09,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09 WrapperNode [2024-11-22 21:54:09,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:54:09,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:54:09,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:54:09,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:54:09,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,661 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2024-11-22 21:54:09,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:54:09,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:54:09,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:54:09,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:54:09,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,686 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-22 21:54:09,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:54:09,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:54:09,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:54:09,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:54:09,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (1/1) ... [2024-11-22 21:54:09,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:54:09,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:54:09,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 21:54:09,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 21:54:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-22 21:54:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-22 21:54:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-22 21:54:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-22 21:54:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:54:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 21:54:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 21:54:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:54:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:54:09,775 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:54:09,908 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:54:09,909 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:54:10,021 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:54:10,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:54:10,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:54:10,094 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 21:54:10,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:54:10 BoogieIcfgContainer [2024-11-22 21:54:10,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:54:10,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:54:10,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:54:10,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:54:10,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:54:09" (1/3) ... [2024-11-22 21:54:10,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b1c87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:54:10, skipping insertion in model container [2024-11-22 21:54:10,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:54:09" (2/3) ... [2024-11-22 21:54:10,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22b1c87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:54:10, skipping insertion in model container [2024-11-22 21:54:10,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:54:10" (3/3) ... [2024-11-22 21:54:10,102 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray.i [2024-11-22 21:54:10,113 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:54:10,113 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-22 21:54:10,114 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:54:10,146 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 21:54:10,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 66 flow [2024-11-22 21:54:10,196 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-22 21:54:10,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:54:10,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 2/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-22 21:54:10,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 66 flow [2024-11-22 21:54:10,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2024-11-22 21:54:10,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:54:10,217 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;@2cbc08e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:54:10,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-22 21:54:10,221 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:54:10,225 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-22 21:54:10,225 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:54:10,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:54:10,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-22 21:54:10,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (and 11 more)] === [2024-11-22 21:54:10,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:54:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 200552, now seen corresponding path program 1 times [2024-11-22 21:54:10,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:54:10,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315381863] [2024-11-22 21:54:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:54:10,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:54:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:54:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:54:10,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:54:10,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315381863] [2024-11-22 21:54:10,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315381863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:54:10,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:54:10,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 21:54:10,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338077276] [2024-11-22 21:54:10,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:54:10,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:54:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:54:10,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:54:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:54:10,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-11-22 21:54:10,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:54:10,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:54:10,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-11-22 21:54:10,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:54:10,519 INFO L124 PetriNetUnfolderBase]: 126/268 cut-off events. [2024-11-22 21:54:10,520 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 21:54:10,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 268 events. 126/268 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1135 event pairs, 87 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 469. Up to 161 conditions per place. [2024-11-22 21:54:10,524 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 18 selfloop transitions, 3 changer transitions 2/34 dead transitions. [2024-11-22 21:54:10,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 120 flow [2024-11-22 21:54:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:54:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:54:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-11-22 21:54:10,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2024-11-22 21:54:10,535 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 3 states and 63 transitions. [2024-11-22 21:54:10,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 120 flow [2024-11-22 21:54:10,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:54:10,539 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 67 flow [2024-11-22 21:54:10,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2024-11-22 21:54:10,543 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2024-11-22 21:54:10,543 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 67 flow [2024-11-22 21:54:10,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:54:10,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:54:10,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 21:54:10,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:54:10,543 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (and 11 more)] === [2024-11-22 21:54:10,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:54:10,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1679644596, now seen corresponding path program 1 times [2024-11-22 21:54:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:54:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370721914] [2024-11-22 21:54:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:54:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:54:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 21:54:10,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 21:54:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 21:54:10,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 21:54:10,610 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 21:54:10,612 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-11-22 21:54:10,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (12 of 14 remaining) [2024-11-22 21:54:10,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (11 of 14 remaining) [2024-11-22 21:54:10,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (10 of 14 remaining) [2024-11-22 21:54:10,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (9 of 14 remaining) [2024-11-22 21:54:10,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-22 21:54:10,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-22 21:54:10,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-11-22 21:54:10,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-11-22 21:54:10,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-11-22 21:54:10,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-11-22 21:54:10,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-11-22 21:54:10,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-11-22 21:54:10,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-11-22 21:54:10,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:54:10,615 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-22 21:54:10,633 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:54:10,633 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:54:10,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:54:10 BasicIcfg [2024-11-22 21:54:10,637 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:54:10,638 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:54:10,638 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:54:10,638 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:54:10,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:54:10" (3/4) ... [2024-11-22 21:54:10,639 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 21:54:10,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:54:10,668 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:54:10,668 INFO L158 Benchmark]: Toolchain (without parser) took 1522.71ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 58.3MB in the end (delta: 52.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,669 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:54:10,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.85ms. Allocated memory is still 153.1MB. Free memory was 110.5MB in the beginning and 80.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.07ms. Allocated memory is still 153.1MB. Free memory was 80.7MB in the beginning and 78.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,670 INFO L158 Benchmark]: Boogie Preprocessor took 41.16ms. Allocated memory is still 153.1MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,670 INFO L158 Benchmark]: RCFGBuilder took 387.63ms. Allocated memory is still 153.1MB. Free memory was 76.5MB in the beginning and 107.3MB in the end (delta: -30.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,670 INFO L158 Benchmark]: TraceAbstraction took 540.22ms. Allocated memory is still 153.1MB. Free memory was 106.6MB in the beginning and 61.2MB in the end (delta: 45.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,671 INFO L158 Benchmark]: Witness Printer took 30.43ms. Allocated memory is still 153.1MB. Free memory was 61.2MB in the beginning and 58.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:54:10,672 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 104.9MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.85ms. Allocated memory is still 153.1MB. Free memory was 110.5MB in the beginning and 80.7MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.07ms. Allocated memory is still 153.1MB. Free memory was 80.7MB in the beginning and 78.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.16ms. Allocated memory is still 153.1MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.63ms. Allocated memory is still 153.1MB. Free memory was 76.5MB in the beginning and 107.3MB in the end (delta: -30.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 540.22ms. Allocated memory is still 153.1MB. Free memory was 106.6MB in the beginning and 61.2MB in the end (delta: 45.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 30.43ms. Allocated memory is still 153.1MB. Free memory was 61.2MB in the beginning and 58.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1057] 0 size = __VERIFIER_nondet_int() [L1058] COND FALSE 0 !(size < 1 || size > 20) [L1061] 0 int *a = (int *)malloc(size); [L1062] 0 pthread_t id1, id2; [L1063] 0 ind = 0 [L1064] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(arg)={-2:0}, \old(argc)=4, \old(argv)={5:6}, a={-2:0}, argc=4, i=1, id1=-1, ind=0, j=2, size=2] [L1041] 1 int *a = (int *)arg; VAL [\old(arg)={-2:0}, a={-2:0}, arg={-2:0}, i=1, ind=0, j=2, size=2] [L1042] COND TRUE 1 ind < size - 1 [L1043] 1 ++ind VAL [\old(arg)={-2:0}, a={-2:0}, arg={-2:0}, i=1, ind=1, j=2, size=2] [L1044] 1 a[ind] = i - UnprovableResult [Line: 1056]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1065]: 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: 1064]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-22 21:54:10,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)