./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e4241de9ab6aaee40e34a0aea220f2af2541cd79c1f3c4ee08672ad0bf05f65 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:23:50,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:23:50,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:23:50,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:23:50,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:23:50,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:23:50,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:23:50,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:23:50,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:23:50,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:23:50,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:23:50,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:23:50,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:23:50,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:23:50,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:23:50,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:23:50,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:23:50,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:23:50,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:23:50,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:23:50,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:23:50,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:23:50,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:23:50,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:23:50,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:23:50,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:23:50,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:23:50,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:23:50,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:23:50,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:23:50,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:23:50,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:23:50,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:23:50,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:23:50,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:23:50,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:23:50,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:23:50,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:23:50,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:23:50,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:23:50,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:23:50,493 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:23:50,526 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:23:50,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:23:50,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:23:50,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:23:50,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:23:50,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:23:50,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:23:50,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:23:50,529 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:23:50,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:23:50,530 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:23:50,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:23:50,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:23:50,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:23:50,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:23:50,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:23:50,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:23:50,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:23:50,532 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:23:50,532 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:23:50,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:23:50,532 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:23:50,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:23:50,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:23:50,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:23:50,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:23:50,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:23:50,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:23:50,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:23:50,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:23:50,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:23:50,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:23:50,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:23:50,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:23:50,535 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:23:50,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:23:50,535 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:23:50,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4241de9ab6aaee40e34a0aea220f2af2541cd79c1f3c4ee08672ad0bf05f65 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:23:50,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:23:50,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:23:50,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:23:50,893 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:23:50,893 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:23:50,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2023-08-30 10:23:52,041 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:23:52,365 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:23:52,366 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2023-08-30 10:23:52,383 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7705771ef/26e6d904e409416f83b9e118992c2f65/FLAG8ec2420b8 [2023-08-30 10:23:52,405 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7705771ef/26e6d904e409416f83b9e118992c2f65 [2023-08-30 10:23:52,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:23:52,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:23:52,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:23:52,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:23:52,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:23:52,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:23:52" (1/1) ... [2023-08-30 10:23:52,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794c59e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:52, skipping insertion in model container [2023-08-30 10:23:52,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:23:52" (1/1) ... [2023-08-30 10:23:52,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:23:52,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:23:52,871 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_78-equ_racing-overflow.i[47038,47051] [2023-08-30 10:23:52,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:23:52,915 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:23:52,968 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_78-equ_racing-overflow.i[47038,47051] [2023-08-30 10:23:52,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:23:53,066 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:23:53,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53 WrapperNode [2023-08-30 10:23:53,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:23:53,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:23:53,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:23:53,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:23:53,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,147 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 217 [2023-08-30 10:23:53,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:23:53,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:23:53,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:23:53,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:23:53,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:23:53,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:23:53,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:23:53,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:23:53,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (1/1) ... [2023-08-30 10:23:53,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:23:53,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:23:53,254 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 10:23:53,287 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 10:23:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:23:53,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:23:53,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 10:23:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:23:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 10:23:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:23:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 10:23:53,305 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 10:23:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:23:53,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:23:53,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:23:53,307 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 10:23:53,459 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:23:53,461 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:23:53,727 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:23:53,735 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:23:53,735 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-08-30 10:23:53,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:23:53 BoogieIcfgContainer [2023-08-30 10:23:53,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:23:53,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:23:53,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:23:53,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:23:53,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:23:52" (1/3) ... [2023-08-30 10:23:53,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ccae52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:23:53, skipping insertion in model container [2023-08-30 10:23:53,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:23:53" (2/3) ... [2023-08-30 10:23:53,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ccae52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:23:53, skipping insertion in model container [2023-08-30 10:23:53,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:23:53" (3/3) ... [2023-08-30 10:23:53,745 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing-overflow.i [2023-08-30 10:23:53,751 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:23:53,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:23:53,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-30 10:23:53,764 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:23:53,869 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 10:23:53,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 228 transitions, 464 flow [2023-08-30 10:23:53,999 INFO L130 PetriNetUnfolder]: 42/305 cut-off events. [2023-08-30 10:23:54,001 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 10:23:54,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 305 events. 42/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 986 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 150. Up to 8 conditions per place. [2023-08-30 10:23:54,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 228 transitions, 464 flow [2023-08-30 10:23:54,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 225 transitions, 458 flow [2023-08-30 10:23:54,025 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:23:54,034 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 225 transitions, 458 flow [2023-08-30 10:23:54,038 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 225 transitions, 458 flow [2023-08-30 10:23:54,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 225 transitions, 458 flow [2023-08-30 10:23:54,088 INFO L130 PetriNetUnfolder]: 41/302 cut-off events. [2023-08-30 10:23:54,088 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 10:23:54,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 302 events. 41/302 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 984 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 150. Up to 8 conditions per place. [2023-08-30 10:23:54,095 INFO L119 LiptonReduction]: Number of co-enabled transitions 11136 [2023-08-30 10:24:00,578 INFO L134 LiptonReduction]: Checked pairs total: 22411 [2023-08-30 10:24:00,578 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-08-30 10:24:00,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:24:00,593 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@73d444d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:24:00,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 10:24:00,595 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 10:24:00,595 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:24:00,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:24:00,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 10:24:00,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 10:24:00,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:24:00,601 INFO L85 PathProgramCache]: Analyzing trace with hash 872, now seen corresponding path program 1 times [2023-08-30 10:24:00,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:24:00,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883723040] [2023-08-30 10:24:00,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:24:00,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:24:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 10:24:00,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 10:24:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 10:24:00,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 10:24:00,737 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 10:24:00,738 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 10:24:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 10:24:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 10:24:00,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 10:24:00,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 10:24:00,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 10:24:00,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 10:24:00,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 10:24:00,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-08-30 10:24:00,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-08-30 10:24:00,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2023-08-30 10:24:00,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2023-08-30 10:24:00,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 10:24:00,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 10:24:00,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 10:24:00,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 10:24:00,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 10:24:00,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 10:24:00,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 10:24:00,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 10:24:00,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:24:00,745 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 10:24:00,752 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-30 10:24:00,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:24:00,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:24:00,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:24:00 BasicIcfg [2023-08-30 10:24:00,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:24:00,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:24:00,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:24:00,782 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:24:00,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:23:53" (3/4) ... [2023-08-30 10:24:00,784 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 10:24:00,809 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:24:00,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:24:00,812 INFO L158 Benchmark]: Toolchain (without parser) took 8400.37ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.0MB in the beginning and 30.3MB in the end (delta: 18.7MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2023-08-30 10:24:00,812 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.0MB in the beginning and 32.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:24:00,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.76ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 38.1MB in the end (delta: 10.6MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-08-30 10:24:00,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.46ms. Allocated memory is still 73.4MB. Free memory was 38.1MB in the beginning and 35.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:24:00,813 INFO L158 Benchmark]: Boogie Preprocessor took 66.27ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 33.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:24:00,813 INFO L158 Benchmark]: RCFGBuilder took 521.36ms. Allocated memory is still 73.4MB. Free memory was 33.1MB in the beginning and 33.5MB in the end (delta: -387.9kB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-08-30 10:24:00,814 INFO L158 Benchmark]: TraceAbstraction took 7041.63ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 32.8MB in the beginning and 32.4MB in the end (delta: 448.3kB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-08-30 10:24:00,814 INFO L158 Benchmark]: Witness Printer took 27.62ms. Allocated memory is still 107.0MB. Free memory was 31.3MB in the beginning and 30.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:24:00,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 32.0MB in the beginning and 32.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.76ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 38.1MB in the end (delta: 10.6MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.46ms. Allocated memory is still 73.4MB. Free memory was 38.1MB in the beginning and 35.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.27ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 33.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.36ms. Allocated memory is still 73.4MB. Free memory was 33.1MB in the beginning and 33.5MB in the end (delta: -387.9kB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7041.63ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 32.8MB in the beginning and 32.4MB in the end (delta: 448.3kB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 27.62ms. Allocated memory is still 107.0MB. Free memory was 31.3MB in the beginning and 30.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 201 PlacesBefore, 59 PlacesAfterwards, 225 TransitionsBefore, 78 TransitionsAfterwards, 11136 CoEnabledTransitionPairs, 7 FixpointIterations, 82 TrivialSequentialCompositions, 103 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 15 ConcurrentYvCompositions, 5 ChoiceCompositions, 210 TotalNumberOfCompositions, 22411 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10542, independent: 10151, independent conditional: 0, independent unconditional: 10151, dependent: 391, dependent conditional: 0, dependent unconditional: 391, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5709, independent: 5632, independent conditional: 0, independent unconditional: 5632, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10542, independent: 4519, independent conditional: 0, independent unconditional: 4519, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 5709, unknown conditional: 0, unknown unconditional: 5709] , Statistics on independence cache: Total cache size (in pairs): 400, Positive cache size: 365, Positive conditional cache size: 0, Positive unconditional cache size: 365, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1026]: integer overflow possible integer overflow possible We found a FailurePath: [L1004] pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1006-L1010] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1020] int x = __VERIFIER_nondet_int(); [L1021] struct s *s; [L1022] int *d; [L1023] pthread_mutex_t *m; [L1024] COND TRUE \read(x) [L1025] s = &A [L1026] x++ VAL [A={4:0}, B={5:0}, __global_lock={3:0}, s={4:0}, x++=2147483647, x=2147483647] - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1026]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 254 locations, 21 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: 6.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-30 10:24:00,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)