./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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/04-mutex_20-stdfun_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 --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 [2023-08-29 01:58:37,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:58:37,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:58:37,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:58:37,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:58:37,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:58:37,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:58:37,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:58:37,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:58:37,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:58:37,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:58:37,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:58:37,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:58:37,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:58:37,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:58:37,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:58:37,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:58:37,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:58:37,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:58:37,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:58:37,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:58:37,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:58:37,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:58:37,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:58:37,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:58:37,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:58:37,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:58:37,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:58:37,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:58:37,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:58:37,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:58:37,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:58:37,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:58:37,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:58:37,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:58:37,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:58:37,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:58:37,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:58:37,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:58:37,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:58:37,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:58:37,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:58:37,295 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:58:37,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:58:37,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:58:37,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:58:37,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:58:37,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:58:37,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:58:37,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:58:37,298 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:58:37,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:58:37,299 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:58:37,299 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:58:37,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:58:37,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:58:37,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:58:37,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:58:37,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:58:37,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:58:37,300 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:58:37,300 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:58:37,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:58:37,301 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:58:37,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:58:37,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:58:37,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:58:37,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:58:37,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:58:37,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:58:37,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:58:37,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:58:37,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:58:37,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:58:37,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:58:37,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:58:37,303 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:58:37,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:58:37,304 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:58:37,304 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:58:37,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:58:37,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:58:37,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:58:37,627 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:58:37,628 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:58:37,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-29 01:58:38,871 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:58:39,170 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:58:39,171 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-29 01:58:39,187 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4feb1eeb/4262db2d8c5d494ebf680f107a15c422/FLAG42722c6c8 [2023-08-29 01:58:39,199 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4feb1eeb/4262db2d8c5d494ebf680f107a15c422 [2023-08-29 01:58:39,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:58:39,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:58:39,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:58:39,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:58:39,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:58:39,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c54c7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39, skipping insertion in model container [2023-08-29 01:58:39,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:58:39,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:58:39,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:58:39,664 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:58:39,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:58:39,777 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:58:39,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39 WrapperNode [2023-08-29 01:58:39,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:58:39,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:58:39,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:58:39,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:58:39,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,818 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-08-29 01:58:39,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:58:39,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:58:39,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:58:39,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:58:39,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,851 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:58:39,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:58:39,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:58:39,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:58:39,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (1/1) ... [2023-08-29 01:58:39,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:58:39,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:58:39,884 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) [2023-08-29 01:58:39,914 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 [2023-08-29 01:58:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:58:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:58:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:58:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:58:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:58:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:58:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:58:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:58:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:58:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:58:39,931 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:58:40,051 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:58:40,053 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:58:40,235 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:58:40,241 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:58:40,241 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:58:40,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:40 BoogieIcfgContainer [2023-08-29 01:58:40,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:58:40,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:58:40,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:58:40,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:58:40,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:58:39" (1/3) ... [2023-08-29 01:58:40,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0dd8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:40, skipping insertion in model container [2023-08-29 01:58:40,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:39" (2/3) ... [2023-08-29 01:58:40,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0dd8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:40, skipping insertion in model container [2023-08-29 01:58:40,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:40" (3/3) ... [2023-08-29 01:58:40,249 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2023-08-29 01:58:40,259 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:58:40,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:58:40,267 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 01:58:40,267 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:58:40,333 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 01:58:40,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 109 flow [2023-08-29 01:58:40,413 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-29 01:58:40,414 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:40,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:58:40,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 52 transitions, 109 flow [2023-08-29 01:58:40,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-08-29 01:58:40,424 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:58:40,438 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-29 01:58:40,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-29 01:58:40,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-08-29 01:58:40,467 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-29 01:58:40,467 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:40,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:58:40,469 INFO L119 LiptonReduction]: Number of co-enabled transitions 720 [2023-08-29 01:58:41,464 INFO L134 LiptonReduction]: Checked pairs total: 2819 [2023-08-29 01:58:41,465 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-08-29 01:58:41,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:58:41,490 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;@73671bb9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:58:41,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-29 01:58:41,494 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-29 01:58:41,494 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:41,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:41,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:41,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 01:58:41,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:41,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1789488394, now seen corresponding path program 1 times [2023-08-29 01:58:41,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:41,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329148836] [2023-08-29 01:58:41,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:41,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:41,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:41,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329148836] [2023-08-29 01:58:41,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329148836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:41,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:41,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487092943] [2023-08-29 01:58:41,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:41,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:41,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:42,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:42,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2023-08-29 01:58:42,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 6 states, 6 states have (on average 35.333333333333336) internal successors, (212), 6 states have internal predecessors, (212), 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) [2023-08-29 01:58:42,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:42,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2023-08-29 01:58:42,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:42,270 INFO L130 PetriNetUnfolder]: 131/322 cut-off events. [2023-08-29 01:58:42,270 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:42,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 322 events. 131/322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1474 event pairs, 43 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 612. Up to 157 conditions per place. [2023-08-29 01:58:42,275 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 44 selfloop transitions, 25 changer transitions 0/71 dead transitions. [2023-08-29 01:58:42,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 71 transitions, 283 flow [2023-08-29 01:58:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:42,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 274 transitions. [2023-08-29 01:58:42,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2023-08-29 01:58:42,287 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 274 transitions. [2023-08-29 01:58:42,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 274 transitions. [2023-08-29 01:58:42,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:42,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 274 transitions. [2023-08-29 01:58:42,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 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) [2023-08-29 01:58:42,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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) [2023-08-29 01:58:42,299 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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) [2023-08-29 01:58:42,301 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 6 states and 274 transitions. [2023-08-29 01:58:42,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 71 transitions, 283 flow [2023-08-29 01:58:42,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 71 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:58:42,305 INFO L231 Difference]: Finished difference. Result has 35 places, 49 transitions, 218 flow [2023-08-29 01:58:42,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=35, PETRI_TRANSITIONS=49} [2023-08-29 01:58:42,309 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2023-08-29 01:58:42,310 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 49 transitions, 218 flow [2023-08-29 01:58:42,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.333333333333336) internal successors, (212), 6 states have internal predecessors, (212), 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) [2023-08-29 01:58:42,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:42,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:42,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:58:42,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 01:58:42,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:42,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2101057688, now seen corresponding path program 1 times [2023-08-29 01:58:42,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:42,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10958662] [2023-08-29 01:58:42,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:42,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:42,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:42,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10958662] [2023-08-29 01:58:42,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10958662] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:42,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:42,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:58:42,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866236571] [2023-08-29 01:58:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:42,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:58:42,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:58:42,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:58:42,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 80 [2023-08-29 01:58:42,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 49 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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) [2023-08-29 01:58:42,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:42,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 80 [2023-08-29 01:58:42,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:42,772 INFO L130 PetriNetUnfolder]: 229/521 cut-off events. [2023-08-29 01:58:42,772 INFO L131 PetriNetUnfolder]: For 249/256 co-relation queries the response was YES. [2023-08-29 01:58:42,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 521 events. 229/521 cut-off events. For 249/256 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2569 event pairs, 54 based on Foata normal form. 22/543 useless extension candidates. Maximal degree in co-relation 1500. Up to 300 conditions per place. [2023-08-29 01:58:42,777 INFO L137 encePairwiseOnDemand]: 64/80 looper letters, 74 selfloop transitions, 46 changer transitions 2/124 dead transitions. [2023-08-29 01:58:42,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 124 transitions, 738 flow [2023-08-29 01:58:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:58:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:58:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 272 transitions. [2023-08-29 01:58:42,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-08-29 01:58:42,780 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 272 transitions. [2023-08-29 01:58:42,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 272 transitions. [2023-08-29 01:58:42,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:42,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 272 transitions. [2023-08-29 01:58:42,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 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) [2023-08-29 01:58:42,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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) [2023-08-29 01:58:42,783 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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) [2023-08-29 01:58:42,783 INFO L175 Difference]: Start difference. First operand has 35 places, 49 transitions, 218 flow. Second operand 6 states and 272 transitions. [2023-08-29 01:58:42,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 124 transitions, 738 flow [2023-08-29 01:58:42,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 124 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:58:42,788 INFO L231 Difference]: Finished difference. Result has 44 places, 93 transitions, 609 flow [2023-08-29 01:58:42,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=44, PETRI_TRANSITIONS=93} [2023-08-29 01:58:42,789 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2023-08-29 01:58:42,789 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 93 transitions, 609 flow [2023-08-29 01:58:42,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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) [2023-08-29 01:58:42,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:42,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:42,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:58:42,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 01:58:42,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:42,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1934754265, now seen corresponding path program 1 times [2023-08-29 01:58:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:42,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353285305] [2023-08-29 01:58:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:42,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:58:42,803 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:58:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:58:42,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:58:42,827 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:58:42,828 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-29 01:58:42,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-29 01:58:42,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-29 01:58:42,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-29 01:58:42,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-29 01:58:42,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-29 01:58:42,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:58:42,831 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 01:58:42,836 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:58:42,836 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:58:42,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:58:42 BasicIcfg [2023-08-29 01:58:42,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:58:42,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:58:42,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:58:42,854 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:58:42,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:40" (3/4) ... [2023-08-29 01:58:42,856 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:58:42,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:58:42,857 INFO L158 Benchmark]: Toolchain (without parser) took 3654.47ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 63.6MB in the beginning and 44.8MB in the end (delta: 18.8MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,857 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:58:42,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.68ms. Allocated memory is still 88.1MB. Free memory was 63.4MB in the beginning and 56.4MB in the end (delta: 7.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.62ms. Allocated memory is still 88.1MB. Free memory was 56.4MB in the beginning and 54.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,859 INFO L158 Benchmark]: Boogie Preprocessor took 39.75ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 52.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,859 INFO L158 Benchmark]: RCFGBuilder took 383.71ms. Allocated memory is still 88.1MB. Free memory was 52.5MB in the beginning and 65.2MB in the end (delta: -12.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,860 INFO L158 Benchmark]: TraceAbstraction took 2609.21ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.8MB in the beginning and 45.9MB in the end (delta: 18.9MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,860 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 107.0MB. Free memory was 45.9MB in the beginning and 44.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:58:42,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.68ms. Allocated memory is still 88.1MB. Free memory was 63.4MB in the beginning and 56.4MB in the end (delta: 7.0MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.62ms. Allocated memory is still 88.1MB. Free memory was 56.4MB in the beginning and 54.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.75ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 52.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.71ms. Allocated memory is still 88.1MB. Free memory was 52.5MB in the beginning and 65.2MB in the end (delta: -12.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2609.21ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.8MB in the beginning and 45.9MB in the end (delta: 18.9MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 107.0MB. Free memory was 45.9MB in the beginning and 44.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 55 PlacesBefore, 27 PlacesAfterwards, 51 TransitionsBefore, 23 TransitionsAfterwards, 720 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 2819 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 716, independent: 497, independent conditional: 0, independent unconditional: 497, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 319, independent: 289, independent conditional: 0, independent unconditional: 289, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 716, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 319, unknown conditional: 0, unknown unconditional: 319] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id; [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, myglobal={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L919] EXPR 1 \read(myglobal) VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] Now there is a data race (on the heap) between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 919]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 24 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=609occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 01:58:42,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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