./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d 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/goblint-regression/28-race_reach_83-list2_racing1.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 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:43:44,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:43:44,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:43:44,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:43:44,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:43:44,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:43:44,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:43:44,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:43:44,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:43:44,915 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:43:44,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:43:44,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:43:44,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:43:44,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:43:44,917 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:43:44,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:43:44,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:43:44,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:43:44,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:43:44,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:43:44,919 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:43:44,922 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:43:44,922 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:43:44,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:43:44,923 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:43:44,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:43:44,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:43:44,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:43:44,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:43:44,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:43:44,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:43:44,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:43:44,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:43:44,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:43:44,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:43:44,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:43:44,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:43:44,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:43:44,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:43:44,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:43:44,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:43:44,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:43:44,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-11-09 10:43:45,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:43:45,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:43:45,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:43:45,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:43:45,172 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:43:45,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-11-09 10:43:46,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:43:46,774 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:43:46,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-11-09 10:43:46,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba2d2019/495983f8b5994eae86086b1efc5eb656/FLAG2038dbc69 [2024-11-09 10:43:47,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba2d2019/495983f8b5994eae86086b1efc5eb656 [2024-11-09 10:43:47,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:43:47,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:43:47,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:43:47,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:43:47,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:43:47,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205b2005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47, skipping insertion in model container [2024-11-09 10:43:47,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:43:47,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:43:47,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:43:47,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:43:47,724 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:43:47,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47 WrapperNode [2024-11-09 10:43:47,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:43:47,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:43:47,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:43:47,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:43:47,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,795 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 375 [2024-11-09 10:43:47,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:43:47,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:43:47,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:43:47,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:43:47,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,816 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,850 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 2, 5, 5, 23, 5, 2, 5, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 5, 0, 5, 0, 5, 0]. The 15 writes are split as follows [0, 1, 0, 0, 12, 0, 1, 0, 1]. [2024-11-09 10:43:47,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:43:47,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:43:47,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:43:47,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:43:47,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (1/1) ... [2024-11-09 10:43:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:43:47,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:43:47,947 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) [2024-11-09 10:43:47,957 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 [2024-11-09 10:43:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 10:43:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 10:43:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-09 10:43:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 10:43:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 10:43:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-09 10:43:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 10:43:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-09 10:43:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 10:43:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 10:43:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 10:43:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 10:43:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 10:43:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 10:43:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 10:43:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:43:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:43:48,000 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:43:48,170 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:43:48,172 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:43:48,706 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:43:48,707 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:43:48,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:43:48,926 INFO L316 CfgBuilder]: Removed 28 assume(true) statements. [2024-11-09 10:43:48,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:43:48 BoogieIcfgContainer [2024-11-09 10:43:48,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:43:48,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:43:48,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:43:48,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:43:48,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:43:47" (1/3) ... [2024-11-09 10:43:48,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520cdd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:43:48, skipping insertion in model container [2024-11-09 10:43:48,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:43:47" (2/3) ... [2024-11-09 10:43:48,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520cdd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:43:48, skipping insertion in model container [2024-11-09 10:43:48,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:43:48" (3/3) ... [2024-11-09 10:43:48,936 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-11-09 10:43:48,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:43:48,953 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2024-11-09 10:43:48,953 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:43:49,092 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-09 10:43:49,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 230 transitions, 499 flow [2024-11-09 10:43:49,285 INFO L124 PetriNetUnfolderBase]: 126/749 cut-off events. [2024-11-09 10:43:49,286 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-09 10:43:49,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 749 events. 126/749 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5583 event pairs, 0 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 388. Up to 16 conditions per place. [2024-11-09 10:43:49,304 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 230 transitions, 499 flow [2024-11-09 10:43:49,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 230 transitions, 499 flow [2024-11-09 10:43:49,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:43:49,330 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;@79eb29fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:43:49,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-09 10:43:49,333 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:43:49,333 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-09 10:43:49,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:43:49,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:43:49,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-09 10:43:49,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-09 10:43:49,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:43:49,339 INFO L85 PathProgramCache]: Analyzing trace with hash 31662, now seen corresponding path program 1 times [2024-11-09 10:43:49,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:43:49,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726153657] [2024-11-09 10:43:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:43:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:43:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:43:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:43:49,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:43:49,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726153657] [2024-11-09 10:43:49,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726153657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:43:49,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:43:49,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:43:49,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045891341] [2024-11-09 10:43:49,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:43:49,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:43:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:43:49,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:43:49,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:43:49,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 230 [2024-11-09 10:43:49,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 230 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-11-09 10:43:49,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:43:49,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 230 [2024-11-09 10:43:49,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:44:12,493 INFO L124 PetriNetUnfolderBase]: 153559/282326 cut-off events. [2024-11-09 10:44:12,493 INFO L125 PetriNetUnfolderBase]: For 8674/8674 co-relation queries the response was YES. [2024-11-09 10:44:13,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495216 conditions, 282326 events. 153559/282326 cut-off events. For 8674/8674 co-relation queries the response was YES. Maximal size of possible extension queue 5879. Compared 3139049 event pairs, 141756 based on Foata normal form. 31418/282528 useless extension candidates. Maximal degree in co-relation 422808. Up to 208485 conditions per place. [2024-11-09 10:44:15,185 INFO L140 encePairwiseOnDemand]: 198/230 looper letters, 93 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2024-11-09 10:44:15,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 198 transitions, 625 flow [2024-11-09 10:44:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:44:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:44:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2024-11-09 10:44:15,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6289855072463768 [2024-11-09 10:44:15,199 INFO L175 Difference]: Start difference. First operand has 198 places, 230 transitions, 499 flow. Second operand 3 states and 434 transitions. [2024-11-09 10:44:15,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 198 transitions, 625 flow [2024-11-09 10:44:15,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 198 transitions, 625 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:44:15,296 INFO L231 Difference]: Finished difference. Result has 194 places, 198 transitions, 439 flow [2024-11-09 10:44:15,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=439, PETRI_PLACES=194, PETRI_TRANSITIONS=198} [2024-11-09 10:44:15,304 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -4 predicate places. [2024-11-09 10:44:15,304 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 198 transitions, 439 flow [2024-11-09 10:44:15,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-11-09 10:44:15,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:44:15,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-09 10:44:15,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:44:15,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-09 10:44:15,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:44:15,306 INFO L85 PathProgramCache]: Analyzing trace with hash 31663, now seen corresponding path program 1 times [2024-11-09 10:44:15,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:44:15,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365367549] [2024-11-09 10:44:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:44:15,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:44:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:44:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:44:15,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:44:15,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365367549] [2024-11-09 10:44:15,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365367549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:44:15,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:44:15,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:44:15,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516492877] [2024-11-09 10:44:15,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:44:15,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:44:15,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:44:15,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:44:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:44:15,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 230 [2024-11-09 10:44:15,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 198 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2024-11-09 10:44:15,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:44:15,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 230 [2024-11-09 10:44:15,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand