./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.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_47-fun_write.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 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 --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 01:59:34,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:59:34,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:59:34,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:59:34,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:59:34,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:59:34,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:59:34,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:59:34,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:59:34,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:59:34,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:59:34,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:59:34,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:59:34,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:59:34,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:59:34,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:59:34,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:59:34,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:59:34,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:59:34,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:59:34,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:59:34,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:59:34,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:59:34,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:59:34,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:59:34,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:59:34,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:59:34,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:59:34,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:59:34,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:59:34,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:59:34,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:59:34,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:59:34,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:59:34,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:59:34,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:59:34,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:59:34,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:59:34,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:59:34,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:59:34,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:59:34,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:59:34,278 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:59:34,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:59:34,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:59:34,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:59:34,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:59:34,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:59:34,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:59:34,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:59:34,282 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:59:34,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:59:34,283 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:59:34,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:59:34,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:59:34,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:59:34,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:59:34,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:59:34,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:59:34,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:59:34,285 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:59:34,285 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:59:34,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:59:34,285 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:59:34,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:59:34,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:59:34,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:59:34,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:59:34,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:59:34,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:59:34,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:59:34,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:59:34,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:59:34,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:59:34,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:59:34,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:59:34,288 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:59:34,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:59:34,289 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:59:34,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:59:34,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:59:34,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:59:34,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:59:34,642 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:59:34,642 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:59:34,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2023-08-29 01:59:35,841 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:59:36,148 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:59:36,149 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_47-fun_write.i [2023-08-29 01:59:36,163 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cb9733f/c69fce1225fb4601b684e809a640731f/FLAGe4bc7824a [2023-08-29 01:59:36,177 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cb9733f/c69fce1225fb4601b684e809a640731f [2023-08-29 01:59:36,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:59:36,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:59:36,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:59:36,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:59:36,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:59:36,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5d168f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36, skipping insertion in model container [2023-08-29 01:59:36,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:59:36,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:59:36,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:59:36,601 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:59:36,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:59:36,745 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:59:36,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36 WrapperNode [2023-08-29 01:59:36,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:59:36,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:59:36,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:59:36,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:59:36,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,787 INFO L138 Inliner]: procedures = 263, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2023-08-29 01:59:36,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:59:36,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:59:36,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:59:36,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:59:36,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,807 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:59:36,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:59:36,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:59:36,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:59:36,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (1/1) ... [2023-08-29 01:59:36,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:59:36,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:59:36,855 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 01:59:36,861 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 01:59:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:59:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:59:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:59:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:59:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:59:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:59:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:59:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:59:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:59:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:59:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:59:36,899 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 01:59:37,073 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:59:37,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:59:37,317 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:59:37,323 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:59:37,325 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:59:37,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:37 BoogieIcfgContainer [2023-08-29 01:59:37,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:59:37,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:59:37,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:59:37,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:59:37,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:59:36" (1/3) ... [2023-08-29 01:59:37,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1892a652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:59:37, skipping insertion in model container [2023-08-29 01:59:37,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:36" (2/3) ... [2023-08-29 01:59:37,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1892a652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:59:37, skipping insertion in model container [2023-08-29 01:59:37,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:37" (3/3) ... [2023-08-29 01:59:37,337 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2023-08-29 01:59:37,344 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:59:37,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:59:37,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 01:59:37,353 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:59:37,430 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 01:59:37,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 150 flow [2023-08-29 01:59:37,527 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2023-08-29 01:59:37,527 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:59:37,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-29 01:59:37,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 150 flow [2023-08-29 01:59:37,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2023-08-29 01:59:37,541 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:59:37,565 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-29 01:59:37,569 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-29 01:59:37,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 129 flow [2023-08-29 01:59:37,593 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2023-08-29 01:59:37,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:37,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:59:37,599 INFO L119 LiptonReduction]: Number of co-enabled transitions 714 [2023-08-29 01:59:39,553 INFO L134 LiptonReduction]: Checked pairs total: 1969 [2023-08-29 01:59:39,553 INFO L136 LiptonReduction]: Total number of compositions: 46 [2023-08-29 01:59:39,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:59:39,574 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;@23899c96, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:59:39,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-29 01:59:39,578 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 01:59:39,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:39,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:39,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:59:39,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 01:59:39,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:39,584 INFO L85 PathProgramCache]: Analyzing trace with hash 225708328, now seen corresponding path program 1 times [2023-08-29 01:59:39,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:39,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902709472] [2023-08-29 01:59:39,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:39,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:39,755 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 01:59:39,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:39,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902709472] [2023-08-29 01:59:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902709472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:39,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:39,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:39,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169455228] [2023-08-29 01:59:39,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:39,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:39,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:39,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 117 [2023-08-29 01:59:39,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 01:59:39,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:39,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 117 [2023-08-29 01:59:39,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:39,876 INFO L130 PetriNetUnfolder]: 38/104 cut-off events. [2023-08-29 01:59:39,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:39,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 104 events. 38/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 379 event pairs, 17 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 193. Up to 61 conditions per place. [2023-08-29 01:59:39,880 INFO L137 encePairwiseOnDemand]: 111/117 looper letters, 18 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2023-08-29 01:59:39,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 97 flow [2023-08-29 01:59:39,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2023-08-29 01:59:39,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2023-08-29 01:59:39,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2023-08-29 01:59:39,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2023-08-29 01:59:39,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:39,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2023-08-29 01:59:39,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 01:59:39,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 01:59:39,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 01:59:39,910 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 216 transitions. [2023-08-29 01:59:39,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 97 flow [2023-08-29 01:59:39,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:59:39,914 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 66 flow [2023-08-29 01:59:39,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2023-08-29 01:59:39,918 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-08-29 01:59:39,919 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 66 flow [2023-08-29 01:59:39,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 01:59:39,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:39,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 01:59:39,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:59:39,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 01:59:39,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1592797463, now seen corresponding path program 1 times [2023-08-29 01:59:39,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:39,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058847500] [2023-08-29 01:59:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:39,976 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 01:59:39,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:39,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058847500] [2023-08-29 01:59:39,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058847500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:39,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:39,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:39,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607837029] [2023-08-29 01:59:39,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:39,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:39,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:39,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 117 [2023-08-29 01:59:39,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 01:59:39,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:39,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 117 [2023-08-29 01:59:39,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:40,027 INFO L130 PetriNetUnfolder]: 40/114 cut-off events. [2023-08-29 01:59:40,027 INFO L131 PetriNetUnfolder]: For 37/38 co-relation queries the response was YES. [2023-08-29 01:59:40,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 114 events. 40/114 cut-off events. For 37/38 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 438 event pairs, 17 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 258. Up to 70 conditions per place. [2023-08-29 01:59:40,029 INFO L137 encePairwiseOnDemand]: 111/117 looper letters, 15 selfloop transitions, 7 changer transitions 1/28 dead transitions. [2023-08-29 01:59:40,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 138 flow [2023-08-29 01:59:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-08-29 01:59:40,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-08-29 01:59:40,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-08-29 01:59:40,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-08-29 01:59:40,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:40,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-08-29 01:59:40,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 01:59:40,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 01:59:40,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 01:59:40,034 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 66 flow. Second operand 3 states and 207 transitions. [2023-08-29 01:59:40,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 138 flow [2023-08-29 01:59:40,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:59:40,036 INFO L231 Difference]: Finished difference. Result has 26 places, 25 transitions, 114 flow [2023-08-29 01:59:40,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=26, PETRI_TRANSITIONS=25} [2023-08-29 01:59:40,037 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2023-08-29 01:59:40,037 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 114 flow [2023-08-29 01:59:40,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 01:59:40,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:40,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:40,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:59:40,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 01:59:40,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:40,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1747364112, now seen corresponding path program 1 times [2023-08-29 01:59:40,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:40,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915038056] [2023-08-29 01:59:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:40,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:59:40,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:59:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:59:40,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:59:40,099 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:59:40,099 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-29 01:59:40,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-29 01:59:40,108 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2023-08-29 01:59:40,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-29 01:59:40,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-29 01:59:40,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-29 01:59:40,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:59:40,110 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 01:59:40,118 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:59:40,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:59:40,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:59:40 BasicIcfg [2023-08-29 01:59:40,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:59:40,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:59:40,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:59:40,148 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:59:40,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:37" (3/4) ... [2023-08-29 01:59:40,151 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:59:40,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:59:40,152 INFO L158 Benchmark]: Toolchain (without parser) took 3970.89ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.5MB in the beginning and 55.9MB in the end (delta: -8.4MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:40,152 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.0MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:40,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.34ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 38.2MB in the end (delta: 9.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-08-29 01:59:40,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.45ms. Allocated memory is still 71.3MB. Free memory was 38.0MB in the beginning and 35.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:40,154 INFO L158 Benchmark]: Boogie Preprocessor took 21.60ms. Allocated memory is still 71.3MB. Free memory was 35.9MB in the beginning and 34.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:40,154 INFO L158 Benchmark]: RCFGBuilder took 518.13ms. Allocated memory is still 71.3MB. Free memory was 34.3MB in the beginning and 42.3MB in the end (delta: -7.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-08-29 01:59:40,155 INFO L158 Benchmark]: TraceAbstraction took 2815.82ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 41.5MB in the beginning and 56.5MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:40,155 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 86.0MB. Free memory was 56.5MB in the beginning and 55.9MB in the end (delta: 644.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:40,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.0MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.34ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 38.2MB in the end (delta: 9.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.45ms. Allocated memory is still 71.3MB. Free memory was 38.0MB in the beginning and 35.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.60ms. Allocated memory is still 71.3MB. Free memory was 35.9MB in the beginning and 34.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 518.13ms. Allocated memory is still 71.3MB. Free memory was 34.3MB in the beginning and 42.3MB in the end (delta: -7.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2815.82ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 41.5MB in the beginning and 56.5MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.38ms. Allocated memory is still 86.0MB. Free memory was 56.5MB in the beginning and 55.9MB in the end (delta: 644.4kB). 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: 2.0s, 67 PlacesBefore, 22 PlacesAfterwards, 63 TransitionsBefore, 18 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 1969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 998, independent: 824, independent conditional: 0, independent unconditional: 824, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 390, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 998, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 390, unknown conditional: 0, unknown unconditional: 390] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 933]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_t id; [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L925] CALL, EXPR 1 f() [L921] 1 return 5; VAL [\result=5, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L933] 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [arg={0:0}, arg={0:0}, f()=5, mutex1={1:0}, mutex2={2:0}, myglobal=5, myglobal=f()=25] [L933] 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 935]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 925]: 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, 91 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 01:59:40,205 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