./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/singleton.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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:20:01,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:20:02,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:20:02,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:20:02,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:20:02,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:20:02,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:20:02,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:20:02,108 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:20:02,110 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:20:02,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:20:02,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:20:02,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:20:02,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:20:02,112 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:20:02,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:20:02,112 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:20:02,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:20:02,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:20:02,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:20:02,113 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:20:02,114 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:20:02,115 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:20:02,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:20:02,115 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:20:02,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:20:02,116 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:20:02,116 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:20:02,116 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:20:02,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:20:02,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:20:02,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:20:02,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:20:02,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:20:02,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:20:02,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:20:02,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:20:02,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:20:02,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:20:02,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:20:02,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:20:02,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:20:02,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2024-11-19 09:20:02,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:20:02,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:20:02,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:20:02,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:20:02,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:20:02,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton.i [2024-11-19 09:20:03,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:20:04,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:20:04,294 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton.i [2024-11-19 09:20:04,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29d4b1f9e/2af6a2c0e831447c82d1c0bb29f0c7e2/FLAG07bc46183 [2024-11-19 09:20:04,335 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29d4b1f9e/2af6a2c0e831447c82d1c0bb29f0c7e2 [2024-11-19 09:20:04,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:20:04,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:20:04,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:20:04,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:20:04,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:20:04,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:20:04" (1/1) ... [2024-11-19 09:20:04,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bec4055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:04, skipping insertion in model container [2024-11-19 09:20:04,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:20:04" (1/1) ... [2024-11-19 09:20:04,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:20:04,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:20:04,922 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:20:04,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:20:05,037 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:20:05,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05 WrapperNode [2024-11-19 09:20:05,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:20:05,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:20:05,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:20:05,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:20:05,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,089 INFO L138 Inliner]: procedures = 323, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 30 [2024-11-19 09:20:05,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:20:05,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:20:05,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:20:05,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:20:05,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,105 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,120 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 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]. [2024-11-19 09:20:05,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:20:05,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:20:05,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:20:05,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:20:05,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (1/1) ... [2024-11-19 09:20:05,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:20:05,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:20:05,185 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) [2024-11-19 09:20:05,188 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 [2024-11-19 09:20:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:20:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:20:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 09:20:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 09:20:05,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-11-19 09:20:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-11-19 09:20:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:20:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:20:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:20:05,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:20:05,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 09:20:05,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 09:20:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 09:20:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 09:20:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 09:20:05,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:20:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:20:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:20:05,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:20:05,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:20:05,254 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:20:05,428 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:20:05,431 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:20:05,702 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:20:05,703 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:20:05,832 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:20:05,833 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:20:05,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:20:05 BoogieIcfgContainer [2024-11-19 09:20:05,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:20:05,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:20:05,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:20:05,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:20:05,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:20:04" (1/3) ... [2024-11-19 09:20:05,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6217d43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:20:05, skipping insertion in model container [2024-11-19 09:20:05,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:05" (2/3) ... [2024-11-19 09:20:05,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6217d43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:20:05, skipping insertion in model container [2024-11-19 09:20:05,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:20:05" (3/3) ... [2024-11-19 09:20:05,854 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-11-19 09:20:05,868 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:20:05,868 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-19 09:20:05,868 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:20:05,954 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-11-19 09:20:05,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 89 transitions, 275 flow [2024-11-19 09:20:06,032 INFO L124 PetriNetUnfolderBase]: 7/61 cut-off events. [2024-11-19 09:20:06,033 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 09:20:06,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 61 events. 7/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2024-11-19 09:20:06,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 89 transitions, 275 flow [2024-11-19 09:20:06,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 60 transitions, 171 flow [2024-11-19 09:20:06,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:20:06,058 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;@58637dde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:20:06,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-19 09:20:06,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:20:06,071 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-19 09:20:06,071 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 09:20:06,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:20:06,072 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:20:06,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-19 09:20:06,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:20:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1940866222, now seen corresponding path program 1 times [2024-11-19 09:20:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:20:06,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031084333] [2024-11-19 09:20:06,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:20:06,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:20:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:20:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:20:06,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:20:06,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031084333] [2024-11-19 09:20:06,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031084333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:20:06,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:20:06,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:20:06,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858317921] [2024-11-19 09:20:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:20:06,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:20:06,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:20:06,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:20:06,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:20:06,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 91 [2024-11-19 09:20:06,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:06,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:20:06,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 91 [2024-11-19 09:20:06,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:20:07,413 INFO L124 PetriNetUnfolderBase]: 4535/6221 cut-off events. [2024-11-19 09:20:07,415 INFO L125 PetriNetUnfolderBase]: For 303/303 co-relation queries the response was YES. [2024-11-19 09:20:07,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13008 conditions, 6221 events. 4535/6221 cut-off events. For 303/303 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 32333 event pairs, 3591 based on Foata normal form. 2/4549 useless extension candidates. Maximal degree in co-relation 12980. Up to 6076 conditions per place. [2024-11-19 09:20:07,488 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 44 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2024-11-19 09:20:07,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 54 transitions, 249 flow [2024-11-19 09:20:07,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:20:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:20:07,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-19 09:20:07,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3992673992673993 [2024-11-19 09:20:07,506 INFO L175 Difference]: Start difference. First operand has 72 places, 60 transitions, 171 flow. Second operand 3 states and 109 transitions. [2024-11-19 09:20:07,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 54 transitions, 249 flow [2024-11-19 09:20:07,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 215 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-19 09:20:07,551 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 123 flow [2024-11-19 09:20:07,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-19 09:20:07,559 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-11-19 09:20:07,559 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 123 flow [2024-11-19 09:20:07,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:07,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:20:07,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:20:07,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:20:07,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-19 09:20:07,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:20:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1497010483, now seen corresponding path program 1 times [2024-11-19 09:20:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:20:07,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144952444] [2024-11-19 09:20:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:20:07,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:20:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:20:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:20:07,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:20:07,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144952444] [2024-11-19 09:20:07,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144952444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:20:07,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:20:07,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:20:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258302307] [2024-11-19 09:20:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:20:07,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:20:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:20:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:20:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:20:07,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 91 [2024-11-19 09:20:07,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:07,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:20:07,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 91 [2024-11-19 09:20:07,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:20:07,998 INFO L124 PetriNetUnfolderBase]: 1484/2125 cut-off events. [2024-11-19 09:20:07,998 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-19 09:20:08,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4282 conditions, 2125 events. 1484/2125 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9317 event pairs, 1115 based on Foata normal form. 0/1983 useless extension candidates. Maximal degree in co-relation 2395. Up to 2055 conditions per place. [2024-11-19 09:20:08,012 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 40 selfloop transitions, 1 changer transitions 0/49 dead transitions. [2024-11-19 09:20:08,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 49 transitions, 199 flow [2024-11-19 09:20:08,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:20:08,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:20:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-19 09:20:08,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3772893772893773 [2024-11-19 09:20:08,015 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 123 flow. Second operand 3 states and 103 transitions. [2024-11-19 09:20:08,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 49 transitions, 199 flow [2024-11-19 09:20:08,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:20:08,019 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 114 flow [2024-11-19 09:20:08,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2024-11-19 09:20:08,021 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -20 predicate places. [2024-11-19 09:20:08,021 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 114 flow [2024-11-19 09:20:08,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:08,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:20:08,022 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] [2024-11-19 09:20:08,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:20:08,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-19 09:20:08,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:20:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1773545337, now seen corresponding path program 1 times [2024-11-19 09:20:08,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:20:08,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293065694] [2024-11-19 09:20:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:20:08,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:20:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:20:08,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 09:20:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:20:08,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 09:20:08,137 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 09:20:08,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (26 of 27 remaining) [2024-11-19 09:20:08,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 27 remaining) [2024-11-19 09:20:08,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 27 remaining) [2024-11-19 09:20:08,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 27 remaining) [2024-11-19 09:20:08,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 27 remaining) [2024-11-19 09:20:08,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 27 remaining) [2024-11-19 09:20:08,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2024-11-19 09:20:08,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2024-11-19 09:20:08,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 27 remaining) [2024-11-19 09:20:08,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2024-11-19 09:20:08,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2024-11-19 09:20:08,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2024-11-19 09:20:08,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (14 of 27 remaining) [2024-11-19 09:20:08,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2024-11-19 09:20:08,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2024-11-19 09:20:08,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 27 remaining) [2024-11-19 09:20:08,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2024-11-19 09:20:08,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2024-11-19 09:20:08,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2024-11-19 09:20:08,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2024-11-19 09:20:08,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 27 remaining) [2024-11-19 09:20:08,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:20:08,152 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-19 09:20:08,249 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:20:08,249 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:20:08,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:20:08 BasicIcfg [2024-11-19 09:20:08,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:20:08,259 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:20:08,260 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:20:08,260 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:20:08,261 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:20:05" (3/4) ... [2024-11-19 09:20:08,263 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 09:20:08,264 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:20:08,265 INFO L158 Benchmark]: Toolchain (without parser) took 3925.73ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 119.2MB in the beginning and 50.3MB in the end (delta: 68.9MB). Peak memory consumption was 116.7MB. Max. memory is 16.1GB. [2024-11-19 09:20:08,265 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:20:08,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.81ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 83.2MB in the end (delta: 36.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-19 09:20:08,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.40ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 81.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:20:08,268 INFO L158 Benchmark]: Boogie Preprocessor took 52.38ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 78.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:20:08,269 INFO L158 Benchmark]: RCFGBuilder took 689.36ms. Allocated memory is still 151.0MB. Free memory was 78.4MB in the beginning and 108.1MB in the end (delta: -29.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-19 09:20:08,269 INFO L158 Benchmark]: TraceAbstraction took 2423.90ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 108.1MB in the beginning and 50.3MB in the end (delta: 57.8MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2024-11-19 09:20:08,269 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 197.1MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:20:08,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.81ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 83.2MB in the end (delta: 36.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.40ms. Allocated memory is still 151.0MB. Free memory was 83.2MB in the beginning and 81.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.38ms. Allocated memory is still 151.0MB. Free memory was 81.1MB in the beginning and 78.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 689.36ms. Allocated memory is still 151.0MB. Free memory was 78.4MB in the beginning and 108.1MB in the end (delta: -29.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2423.90ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 108.1MB in the beginning and 50.3MB in the end (delta: 57.8MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 197.1MB. Free memory is still 50.3MB. 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=-5, 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=-4, 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=-4, v={-3:0}] [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=-4, t2=-3, v={-3:0}] [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=-4, t2=-3, v={-3:0}] [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=-4, t2=-3, t3=-2, v={-3:0}] [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=-4, t2=-3, t3=-2, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [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=-4, t2=-3, t3=-2, t4=-1, t5=0, t=-5, v={-3:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [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=-4, t2=-3, t3=-2, t4=-1, t5=0, v={-3:0}] [L1164] RET 0 __VERIFIER_assert(v[0] == 'X') [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=-4, t2=-3, t3=-2, t4=-1, t5=0, t=-5, v={-3:0}] - 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: 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: 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: -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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 105 locations, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 3 mSDtfsCounter, 105 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=171occurred 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, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 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 [2024-11-19 09:20:08,329 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/singleton.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:20:10,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:20:10,734 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-19 09:20:10,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:20:10,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:20:10,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:20:10,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:20:10,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:20:10,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:20:10,779 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:20:10,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:20:10,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:20:10,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:20:10,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:20:10,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:20:10,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:20:10,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:20:10,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:20:10,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:20:10,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:20:10,786 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:20:10,786 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:20:10,787 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:20:10,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:20:10,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:20:10,790 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 09:20:10,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:20:10,790 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 09:20:10,791 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:20:10,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:20:10,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:20:10,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:20:10,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:20:10,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:20:10,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:20:10,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:20:10,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:20:10,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:20:10,794 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 09:20:10,795 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 09:20:10,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:20:10,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:20:10,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:20:10,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:20:10,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2024-11-19 09:20:11,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:20:11,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:20:11,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:20:11,170 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:20:11,171 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:20:11,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton.i [2024-11-19 09:20:12,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:20:13,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:20:13,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton.i [2024-11-19 09:20:13,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34190403d/9c6ab6c4c29d48818b4c7f34a4cbdcba/FLAGcd3f0a8b1 [2024-11-19 09:20:13,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34190403d/9c6ab6c4c29d48818b4c7f34a4cbdcba [2024-11-19 09:20:13,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:20:13,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:20:13,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:20:13,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:20:13,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:20:13,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:13,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480d0f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13, skipping insertion in model container [2024-11-19 09:20:13,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:13,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:20:13,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:20:13,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:20:13,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:20:13,944 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:20:13,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13 WrapperNode [2024-11-19 09:20:13,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:20:13,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:20:13,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:20:13,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:20:13,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:13,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,023 INFO L138 Inliner]: procedures = 324, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2024-11-19 09:20:14,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:20:14,025 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:20:14,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:20:14,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:20:14,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,069 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 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]. [2024-11-19 09:20:14,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:20:14,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:20:14,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:20:14,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:20:14,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (1/1) ... [2024-11-19 09:20:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:20:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:20:14,144 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) [2024-11-19 09:20:14,148 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 [2024-11-19 09:20:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-19 09:20:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-11-19 09:20:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-11-19 09:20:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:20:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:20:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:20:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:20:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 09:20:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 09:20:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 09:20:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:20:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:20:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:20:14,205 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:20:14,395 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:20:14,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:20:14,613 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:20:14,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:20:14,762 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:20:14,763 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:20:14,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:20:14 BoogieIcfgContainer [2024-11-19 09:20:14,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:20:14,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:20:14,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:20:14,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:20:14,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:20:13" (1/3) ... [2024-11-19 09:20:14,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0993b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:20:14, skipping insertion in model container [2024-11-19 09:20:14,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:20:13" (2/3) ... [2024-11-19 09:20:14,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0993b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:20:14, skipping insertion in model container [2024-11-19 09:20:14,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:20:14" (3/3) ... [2024-11-19 09:20:14,776 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-11-19 09:20:14,794 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:20:14,794 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-19 09:20:14,794 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:20:14,903 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-11-19 09:20:14,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 89 transitions, 275 flow [2024-11-19 09:20:14,975 INFO L124 PetriNetUnfolderBase]: 7/61 cut-off events. [2024-11-19 09:20:14,976 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 09:20:14,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 61 events. 7/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2024-11-19 09:20:14,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 89 transitions, 275 flow [2024-11-19 09:20:14,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 60 transitions, 171 flow [2024-11-19 09:20:14,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:20:15,003 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;@317779f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:20:15,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-19 09:20:15,026 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:20:15,026 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-19 09:20:15,026 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 09:20:15,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:20:15,027 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:20:15,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-19 09:20:15,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:20:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash -785033228, now seen corresponding path program 1 times [2024-11-19 09:20:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 09:20:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47591718] [2024-11-19 09:20:15,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:20:15,047 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 [2024-11-19 09:20:15,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 09:20:15,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-11-19 09:20:15,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-19 09:20:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:20:15,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 09:20:15,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:20:15,273 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 [2024-11-19 09:20:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:20:15,307 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:20:15,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 09:20:15,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47591718] [2024-11-19 09:20:15,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47591718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:20:15,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:20:15,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:20:15,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93401992] [2024-11-19 09:20:15,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:20:15,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:20:15,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 09:20:15,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:20:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:20:15,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 91 [2024-11-19 09:20:15,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:15,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:20:15,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 91 [2024-11-19 09:20:15,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:20:16,375 INFO L124 PetriNetUnfolderBase]: 4535/6221 cut-off events. [2024-11-19 09:20:16,376 INFO L125 PetriNetUnfolderBase]: For 327/327 co-relation queries the response was YES. [2024-11-19 09:20:16,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13008 conditions, 6221 events. 4535/6221 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 32289 event pairs, 3591 based on Foata normal form. 2/4651 useless extension candidates. Maximal degree in co-relation 12980. Up to 6076 conditions per place. [2024-11-19 09:20:16,439 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 44 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2024-11-19 09:20:16,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 54 transitions, 249 flow [2024-11-19 09:20:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:20:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:20:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-19 09:20:16,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3992673992673993 [2024-11-19 09:20:16,455 INFO L175 Difference]: Start difference. First operand has 72 places, 60 transitions, 171 flow. Second operand 3 states and 109 transitions. [2024-11-19 09:20:16,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 54 transitions, 249 flow [2024-11-19 09:20:16,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 215 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-19 09:20:16,538 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 123 flow [2024-11-19 09:20:16,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-19 09:20:16,553 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-11-19 09:20:16,553 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 123 flow [2024-11-19 09:20:16,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:16,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:20:16,554 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:20:16,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-19 09:20:16,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-11-19 09:20:16,755 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-19 09:20:16,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:20:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash -785033227, now seen corresponding path program 1 times [2024-11-19 09:20:16,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 09:20:16,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135221228] [2024-11-19 09:20:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:20:16,759 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 [2024-11-19 09:20:16,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 09:20:16,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2024-11-19 09:20:16,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-19 09:20:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:20:16,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 09:20:16,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:20:16,884 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 [2024-11-19 09:20:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:20:16,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:20:16,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 09:20:16,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135221228] [2024-11-19 09:20:16,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135221228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:20:16,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:20:16,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:20:16,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661848217] [2024-11-19 09:20:16,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:20:16,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:20:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 09:20:16,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:20:16,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:20:16,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 91 [2024-11-19 09:20:16,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:16,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:20:16,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 91 [2024-11-19 09:20:16,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:20:17,237 INFO L124 PetriNetUnfolderBase]: 1484/2125 cut-off events. [2024-11-19 09:20:17,238 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 09:20:17,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4282 conditions, 2125 events. 1484/2125 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9277 event pairs, 1115 based on Foata normal form. 0/2023 useless extension candidates. Maximal degree in co-relation 2395. Up to 2055 conditions per place. [2024-11-19 09:20:17,250 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 40 selfloop transitions, 1 changer transitions 0/49 dead transitions. [2024-11-19 09:20:17,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 49 transitions, 199 flow [2024-11-19 09:20:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:20:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:20:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-19 09:20:17,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3772893772893773 [2024-11-19 09:20:17,253 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 123 flow. Second operand 3 states and 103 transitions. [2024-11-19 09:20:17,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 49 transitions, 199 flow [2024-11-19 09:20:17,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:20:17,255 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 114 flow [2024-11-19 09:20:17,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2024-11-19 09:20:17,256 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -20 predicate places. [2024-11-19 09:20:17,256 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 114 flow [2024-11-19 09:20:17,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-19 09:20:17,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:20:17,256 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] [2024-11-19 09:20:17,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-19 09:20:17,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2024-11-19 09:20:17,460 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-19 09:20:17,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:20:17,461 INFO L85 PathProgramCache]: Analyzing trace with hash -775710905, now seen corresponding path program 1 times [2024-11-19 09:20:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 09:20:17,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785884857] [2024-11-19 09:20:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:20:17,462 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 [2024-11-19 09:20:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 09:20:17,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2024-11-19 09:20:17,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-19 09:20:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:20:17,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 09:20:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:20:17,798 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-19 09:20:17,798 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 09:20:17,800 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (26 of 27 remaining) [2024-11-19 09:20:17,801 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 27 remaining) [2024-11-19 09:20:17,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 27 remaining) [2024-11-19 09:20:17,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 27 remaining) [2024-11-19 09:20:17,802 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 27 remaining) [2024-11-19 09:20:17,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 27 remaining) [2024-11-19 09:20:17,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2024-11-19 09:20:17,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2024-11-19 09:20:17,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 27 remaining) [2024-11-19 09:20:17,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (14 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2024-11-19 09:20:17,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork1Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2024-11-19 09:20:17,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2024-11-19 09:20:17,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 27 remaining) [2024-11-19 09:20:17,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-19 09:20:18,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/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 [2024-11-19 09:20:18,008 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-19 09:20:18,101 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:20:18,101 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:20:18,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:20:18 BasicIcfg [2024-11-19 09:20:18,107 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:20:18,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:20:18,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:20:18,108 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:20:18,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:20:14" (3/4) ... [2024-11-19 09:20:18,111 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 09:20:18,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:20:18,113 INFO L158 Benchmark]: Toolchain (without parser) took 4967.31ms. Allocated memory was 79.7MB in the beginning and 199.2MB in the end (delta: 119.5MB). Free memory was 48.0MB in the beginning and 114.7MB in the end (delta: -66.6MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2024-11-19 09:20:18,114 INFO L158 Benchmark]: CDTParser took 1.18ms. Allocated memory is still 60.8MB. Free memory is still 29.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:20:18,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 798.58ms. Allocated memory is still 79.7MB. Free memory was 47.9MB in the beginning and 32.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 09:20:18,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.98ms. Allocated memory is still 79.7MB. Free memory was 32.7MB in the beginning and 55.2MB in the end (delta: -22.5MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-19 09:20:18,115 INFO L158 Benchmark]: Boogie Preprocessor took 75.55ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 52.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:20:18,115 INFO L158 Benchmark]: RCFGBuilder took 662.69ms. Allocated memory is still 79.7MB. Free memory was 52.4MB in the beginning and 50.9MB in the end (delta: 1.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-19 09:20:18,116 INFO L158 Benchmark]: TraceAbstraction took 3338.88ms. Allocated memory was 79.7MB in the beginning and 199.2MB in the end (delta: 119.5MB). Free memory was 49.8MB in the beginning and 114.7MB in the end (delta: -64.9MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2024-11-19 09:20:18,116 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 199.2MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:20:18,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18ms. Allocated memory is still 60.8MB. Free memory is still 29.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 798.58ms. Allocated memory is still 79.7MB. Free memory was 47.9MB in the beginning and 32.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.98ms. Allocated memory is still 79.7MB. Free memory was 32.7MB in the beginning and 55.2MB in the end (delta: -22.5MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.55ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 52.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 662.69ms. Allocated memory is still 79.7MB. Free memory was 52.4MB in the beginning and 50.9MB in the end (delta: 1.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3338.88ms. Allocated memory was 79.7MB in the beginning and 199.2MB in the end (delta: 119.5MB). Free memory was 49.8MB in the beginning and 114.7MB in the end (delta: -64.9MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 199.2MB. Free memory is still 114.7MB. 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=0, 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=1, 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=1, 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=1, t2=2, 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=1, t2=2, 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=1, t2=2, t3=3, 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=1, t2=2, t3=3, 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=1, t2=2, t3=3, t4=4, 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=1, t2=2, t3=3, t4=4, 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=1, t2=2, t3=3, t4=4, t5=5, 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=1, t2=2, t3=3, t4=4, t5=5, v={6:0}] [L1135] 5 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=1, t2=2, t3=3, t4=4, t5=5, 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=1, t2=2, t3=3, t4=4, t5=5, 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=1, t2=2, t3=3, t4=4, t5=5, 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=1, t2=2, t3=3, t4=4, t5=5, 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=1, t2=2, t3=3, t4=4, t5=5, t=0, v={6:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [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=1, t2=2, t3=3, t4=4, t5=5, v={6:0}] [L1164] RET 0 __VERIFIER_assert(v[0] == 'X') [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=1, t2=2, t3=3, t4=4, t5=5, t=0, v={6:0}] - 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: 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: 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: -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: 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. - 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 105 locations, 27 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: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 3 mSDtfsCounter, 105 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=171occurred 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 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 [2024-11-19 09:20:18,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample