./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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 ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.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.graphml --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 04:19:54,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:19:54,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:19:55,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:19:55,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:19:55,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:19:55,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:19:55,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:19:55,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:19:55,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:19:55,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:19:55,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:19:55,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:19:55,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:19:55,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:19:55,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:19:55,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:19:55,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:19:55,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:19:55,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:19:55,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:19:55,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:19:55,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:19:55,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:19:55,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:19:55,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:19:55,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:19:55,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:19:55,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:19:55,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:19:55,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:19:55,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:19:55,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:19:55,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:19:55,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:19:55,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:19:55,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:19:55,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:19:55,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:19:55,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:19:55,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:19:55,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:19:55,140 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:19:55,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:19:55,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:19:55,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:19:55,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:19:55,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:19:55,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:19:55,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:19:55,144 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:19:55,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:19:55,145 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:19:55,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:19:55,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:19:55,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:19:55,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:19:55,146 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:19:55,146 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:19:55,146 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:19:55,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:19:55,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:19:55,146 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:19:55,147 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:19:55,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:19:55,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:19:55,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:19:55,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:19:55,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:19:55,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:19:55,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:19:55,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:19:55,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:19:55,149 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:19:55,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:19:55,149 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:19:55,149 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:19:55,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:19:55,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:19:55,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:19:55,488 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:19:55,488 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:19:55,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-08-30 04:19:56,775 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:19:57,134 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:19:57,138 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-08-30 04:19:57,152 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93f83934/ae116efb2eab4db29a524a53432fc377/FLAG6e9a3ff65 [2023-08-30 04:19:57,168 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93f83934/ae116efb2eab4db29a524a53432fc377 [2023-08-30 04:19:57,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:19:57,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:19:57,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:19:57,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:19:57,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:19:57,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:57,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72753bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57, skipping insertion in model container [2023-08-30 04:19:57,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:57,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:19:57,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:19:57,705 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-08-30 04:19:57,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:19:57,783 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:19:57,810 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2023-08-30 04:19:57,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:19:57,897 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:19:57,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57 WrapperNode [2023-08-30 04:19:57,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:19:57,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:19:57,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:19:57,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:19:57,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:57,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:57,992 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 384 [2023-08-30 04:19:57,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:19:57,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:19:57,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:19:57,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:19:58,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,055 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:19:58,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:19:58,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:19:58,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:19:58,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (1/1) ... [2023-08-30 04:19:58,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:19:58,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:19:58,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 04:19:58,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 04:19:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:19:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 04:19:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-30 04:19:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-30 04:19:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:19:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 04:19:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 04:19:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 04:19:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:19:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:19:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 04:19:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:19:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 04:19:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-30 04:19:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-30 04:19:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:19:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:19:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:19:58,142 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 04:19:58,361 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:19:58,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:19:58,985 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:19:58,998 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:19:58,999 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-08-30 04:19:59,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:19:59 BoogieIcfgContainer [2023-08-30 04:19:59,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:19:59,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:19:59,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:19:59,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:19:59,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:19:57" (1/3) ... [2023-08-30 04:19:59,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f79ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:19:59, skipping insertion in model container [2023-08-30 04:19:59,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:19:57" (2/3) ... [2023-08-30 04:19:59,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f79ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:19:59, skipping insertion in model container [2023-08-30 04:19:59,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:19:59" (3/3) ... [2023-08-30 04:19:59,010 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-08-30 04:19:59,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:19:59,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2023-08-30 04:19:59,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:19:59,200 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-30 04:19:59,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 465 transitions, 972 flow [2023-08-30 04:19:59,724 INFO L130 PetriNetUnfolder]: 188/1698 cut-off events. [2023-08-30 04:19:59,725 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-30 04:19:59,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1698 events. 188/1698 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12356 event pairs, 0 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 870. Up to 16 conditions per place. [2023-08-30 04:19:59,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 424 places, 465 transitions, 972 flow [2023-08-30 04:19:59,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 465 transitions, 972 flow [2023-08-30 04:19:59,795 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:19:59,811 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 465 transitions, 972 flow [2023-08-30 04:19:59,815 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 465 transitions, 972 flow [2023-08-30 04:19:59,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 465 transitions, 972 flow [2023-08-30 04:20:00,206 INFO L130 PetriNetUnfolder]: 188/1698 cut-off events. [2023-08-30 04:20:00,207 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-30 04:20:00,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1698 events. 188/1698 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12356 event pairs, 0 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 870. Up to 16 conditions per place. [2023-08-30 04:20:00,319 INFO L119 LiptonReduction]: Number of co-enabled transitions 98764 [2023-08-30 04:20:19,951 INFO L134 LiptonReduction]: Checked pairs total: 293794 [2023-08-30 04:20:19,951 INFO L136 LiptonReduction]: Total number of compositions: 407 [2023-08-30 04:20:19,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:20:19,970 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@7797a639, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:20:19,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2023-08-30 04:20:19,972 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 04:20:19,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:20:19,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:20:19,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:20:19,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 111 more)] === [2023-08-30 04:20:19,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:20:19,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1795, now seen corresponding path program 1 times [2023-08-30 04:20:19,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:20:19,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208739157] [2023-08-30 04:20:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:20:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:20:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:20:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:20:20,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:20:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208739157] [2023-08-30 04:20:20,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208739157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:20:20,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:20:20,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:20:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012145102] [2023-08-30 04:20:20,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:20:20,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:20:20,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:20:20,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:20:20,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:20:20,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 872 [2023-08-30 04:20:20,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 195 transitions, 432 flow. Second operand has 2 states, 2 states have (on average 420.5) internal successors, (841), 2 states have internal predecessors, (841), 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) [2023-08-30 04:20:20,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:20:20,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 872 [2023-08-30 04:20:20,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:22:08,016 INFO L130 PetriNetUnfolder]: 1017285/1466962 cut-off events. [2023-08-30 04:22:08,017 INFO L131 PetriNetUnfolder]: For 8348/8348 co-relation queries the response was YES. [2023-08-30 04:22:11,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2820080 conditions, 1466962 events. 1017285/1466962 cut-off events. For 8348/8348 co-relation queries the response was YES. Maximal size of possible extension queue 35097. Compared 13971211 event pairs, 950430 based on Foata normal form. 90303/844810 useless extension candidates. Maximal degree in co-relation 2653846. Up to 1347660 conditions per place. [2023-08-30 04:22:19,795 INFO L137 encePairwiseOnDemand]: 840/872 looper letters, 123 selfloop transitions, 0 changer transitions 0/163 dead transitions. [2023-08-30 04:22:19,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 163 transitions, 614 flow [2023-08-30 04:22:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:22:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:22:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 995 transitions. [2023-08-30 04:22:19,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5705275229357798 [2023-08-30 04:22:19,841 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 995 transitions. [2023-08-30 04:22:19,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 995 transitions. [2023-08-30 04:22:19,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:22:19,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 995 transitions. [2023-08-30 04:22:19,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 497.5) internal successors, (995), 2 states have internal predecessors, (995), 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) [2023-08-30 04:22:19,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 872.0) internal successors, (2616), 3 states have internal predecessors, (2616), 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) [2023-08-30 04:22:19,900 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 872.0) internal successors, (2616), 3 states have internal predecessors, (2616), 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) [2023-08-30 04:22:19,908 INFO L175 Difference]: Start difference. First operand has 164 places, 195 transitions, 432 flow. Second operand 2 states and 995 transitions. [2023-08-30 04:22:19,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 163 transitions, 614 flow [2023-08-30 04:22:20,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 163 transitions, 614 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:22:20,509 INFO L231 Difference]: Finished difference. Result has 157 places, 163 transitions, 368 flow [2023-08-30 04:22:20,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=872, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=368, PETRI_PLACES=157, PETRI_TRANSITIONS=163} [2023-08-30 04:22:20,516 INFO L281 CegarLoopForPetriNet]: 164 programPoint places, -7 predicate places. [2023-08-30 04:22:20,516 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 163 transitions, 368 flow [2023-08-30 04:22:20,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 420.5) internal successors, (841), 2 states have internal predecessors, (841), 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) [2023-08-30 04:22:20,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:22:20,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 04:22:20,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:22:20,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 111 more)] === [2023-08-30 04:22:20,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:22:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash 57238, now seen corresponding path program 1 times [2023-08-30 04:22:20,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:22:20,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308868777] [2023-08-30 04:22:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:22:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:22:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:22:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:22:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:22:20,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308868777] [2023-08-30 04:22:20,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308868777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:22:20,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:22:20,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:22:20,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102684865] [2023-08-30 04:22:20,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:22:20,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:22:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:22:20,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:22:20,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:22:20,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 872 [2023-08-30 04:22:20,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 163 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 410.6666666666667) internal successors, (1232), 3 states have internal predecessors, (1232), 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) [2023-08-30 04:22:20,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:22:20,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 872 [2023-08-30 04:22:20,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand