./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.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/03-practical_15-exit_problems.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 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 --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 01:57:31,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:57:31,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:57:31,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:57:31,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:57:31,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:57:31,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:57:31,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:57:31,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:57:31,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:57:31,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:57:31,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:57:31,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:57:31,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:57:31,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:57:31,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:57:31,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:57:31,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:57:31,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:57:31,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:57:31,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:57:31,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:57:31,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:57:31,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:57:31,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:57:31,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:57:31,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:57:31,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:57:31,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:57:31,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:57:31,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:57:31,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:57:31,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:57:31,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:57:31,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:57:31,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:57:31,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:57:31,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:57:31,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:57:31,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:57:31,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:57:31,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:57:31,213 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:57:31,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:57:31,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:57:31,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:57:31,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:57:31,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:57:31,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:57:31,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:57:31,217 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:57:31,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:57:31,218 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:57:31,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:57:31,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:57:31,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:57:31,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:57:31,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:57:31,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:57:31,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:57:31,219 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:57:31,219 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:57:31,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:57:31,220 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:57:31,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:57:31,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:57:31,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:57:31,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:57:31,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:31,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:57:31,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:57:31,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:57:31,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:57:31,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:57:31,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:57:31,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:57:31,222 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:57:31,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:57:31,222 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:57:31,223 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d40f5324e9f741708351e6e516a0eeed6b2146f21cbab903e28bb6f6f31acc5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:57:31,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:57:31,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:57:31,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:57:31,540 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:57:31,540 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:57:31,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i [2023-08-29 01:57:32,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:57:33,000 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:57:33,001 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_15-exit_problems.i [2023-08-29 01:57:33,019 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ebca71b/030b14dc8bb24966964464c8db86c394/FLAG818d7bb10 [2023-08-29 01:57:33,037 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6ebca71b/030b14dc8bb24966964464c8db86c394 [2023-08-29 01:57:33,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:57:33,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:57:33,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:33,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:57:33,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:57:33,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bdd03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33, skipping insertion in model container [2023-08-29 01:57:33,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:57:33,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:57:33,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:33,450 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:57:33,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:33,549 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:57:33,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33 WrapperNode [2023-08-29 01:57:33,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:33,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:33,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:57:33,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:57:33,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,613 INFO L138 Inliner]: procedures = 264, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2023-08-29 01:57:33,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:33,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:57:33,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:57:33,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:57:33,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:57:33,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:57:33,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:57:33,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:57:33,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (1/1) ... [2023-08-29 01:57:33,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:33,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:57:33,702 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 01:57:33,729 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 01:57:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:57:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:57:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:57:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:57:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:57:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:57:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:57:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:57:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:57:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:57:33,749 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 01:57:33,895 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:57:33,896 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:57:34,067 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:57:34,073 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:57:34,073 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 01:57:34,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:34 BoogieIcfgContainer [2023-08-29 01:57:34,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:57:34,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:57:34,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:57:34,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:57:34,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:57:33" (1/3) ... [2023-08-29 01:57:34,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1257d80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:57:34, skipping insertion in model container [2023-08-29 01:57:34,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:33" (2/3) ... [2023-08-29 01:57:34,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1257d80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:57:34, skipping insertion in model container [2023-08-29 01:57:34,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:34" (3/3) ... [2023-08-29 01:57:34,086 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_15-exit_problems.i [2023-08-29 01:57:34,094 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:57:34,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:57:34,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 01:57:34,102 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:57:34,141 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 01:57:34,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2023-08-29 01:57:34,218 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2023-08-29 01:57:34,218 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:34,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-29 01:57:34,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2023-08-29 01:57:34,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 77 transitions, 157 flow [2023-08-29 01:57:34,229 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:57:34,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 77 transitions, 157 flow [2023-08-29 01:57:34,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 77 transitions, 157 flow [2023-08-29 01:57:34,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 77 transitions, 157 flow [2023-08-29 01:57:34,260 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2023-08-29 01:57:34,260 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:34,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-29 01:57:34,262 INFO L119 LiptonReduction]: Number of co-enabled transitions 1190 [2023-08-29 01:57:36,041 INFO L134 LiptonReduction]: Checked pairs total: 3792 [2023-08-29 01:57:36,042 INFO L136 LiptonReduction]: Total number of compositions: 51 [2023-08-29 01:57:36,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:57:36,062 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;@6cb275b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:57:36,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 01:57:36,066 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-29 01:57:36,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:36,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:36,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:57:36,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:57:36,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash 251350154, now seen corresponding path program 1 times [2023-08-29 01:57:36,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:36,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839617620] [2023-08-29 01:57:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:36,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:36,293 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 01:57:36,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:36,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839617620] [2023-08-29 01:57:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839617620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:36,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:36,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472519023] [2023-08-29 01:57:36,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:36,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:36,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:36,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:36,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:36,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 129 [2023-08-29 01:57:36,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 01:57:36,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:36,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 129 [2023-08-29 01:57:36,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:36,495 INFO L130 PetriNetUnfolder]: 52/158 cut-off events. [2023-08-29 01:57:36,497 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:36,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 158 events. 52/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 652 event pairs, 23 based on Foata normal form. 12/165 useless extension candidates. Maximal degree in co-relation 280. Up to 70 conditions per place. [2023-08-29 01:57:36,503 INFO L137 encePairwiseOnDemand]: 119/129 looper letters, 24 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2023-08-29 01:57:36,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 133 flow [2023-08-29 01:57:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:36,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-08-29 01:57:36,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2023-08-29 01:57:36,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-08-29 01:57:36,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-08-29 01:57:36,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:36,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-08-29 01:57:36,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 01:57:36,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 01:57:36,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 01:57:36,539 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 57 flow. Second operand 3 states and 231 transitions. [2023-08-29 01:57:36,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 133 flow [2023-08-29 01:57:36,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:57:36,544 INFO L231 Difference]: Finished difference. Result has 29 places, 28 transitions, 98 flow [2023-08-29 01:57:36,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=29, PETRI_TRANSITIONS=28} [2023-08-29 01:57:36,549 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2023-08-29 01:57:36,549 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 28 transitions, 98 flow [2023-08-29 01:57:36,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 01:57:36,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:36,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:36,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:57:36,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:57:36,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:36,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1349337992, now seen corresponding path program 1 times [2023-08-29 01:57:36,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:36,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146539961] [2023-08-29 01:57:36,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:36,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:36,614 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 01:57:36,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:36,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146539961] [2023-08-29 01:57:36,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146539961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:36,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:36,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068644652] [2023-08-29 01:57:36,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:36,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:36,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:36,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:36,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:36,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 129 [2023-08-29 01:57:36,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 01:57:36,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:36,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 129 [2023-08-29 01:57:36,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:36,693 INFO L130 PetriNetUnfolder]: 46/155 cut-off events. [2023-08-29 01:57:36,693 INFO L131 PetriNetUnfolder]: For 73/75 co-relation queries the response was YES. [2023-08-29 01:57:36,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 155 events. 46/155 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 642 event pairs, 21 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 348. Up to 83 conditions per place. [2023-08-29 01:57:36,698 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 18 selfloop transitions, 7 changer transitions 1/36 dead transitions. [2023-08-29 01:57:36,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 176 flow [2023-08-29 01:57:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-08-29 01:57:36,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607235142118863 [2023-08-29 01:57:36,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-08-29 01:57:36,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-08-29 01:57:36,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:36,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-08-29 01:57:36,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 01:57:36,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 01:57:36,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 01:57:36,709 INFO L175 Difference]: Start difference. First operand has 29 places, 28 transitions, 98 flow. Second operand 3 states and 217 transitions. [2023-08-29 01:57:36,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 176 flow [2023-08-29 01:57:36,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:57:36,712 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 142 flow [2023-08-29 01:57:36,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2023-08-29 01:57:36,714 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-08-29 01:57:36,714 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 142 flow [2023-08-29 01:57:36,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 01:57:36,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:36,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:36,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:57:36,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:57:36,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1741096750, now seen corresponding path program 1 times [2023-08-29 01:57:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:36,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852980984] [2023-08-29 01:57:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:36,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:36,787 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 01:57:36,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:36,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852980984] [2023-08-29 01:57:36,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852980984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:36,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:36,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:36,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684136717] [2023-08-29 01:57:36,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:36,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:36,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:36,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:36,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 129 [2023-08-29 01:57:36,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 01:57:36,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:36,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 129 [2023-08-29 01:57:36,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:36,871 INFO L130 PetriNetUnfolder]: 51/168 cut-off events. [2023-08-29 01:57:36,871 INFO L131 PetriNetUnfolder]: For 128/143 co-relation queries the response was YES. [2023-08-29 01:57:36,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 168 events. 51/168 cut-off events. For 128/143 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 690 event pairs, 21 based on Foata normal form. 2/159 useless extension candidates. Maximal degree in co-relation 443. Up to 79 conditions per place. [2023-08-29 01:57:36,873 INFO L137 encePairwiseOnDemand]: 124/129 looper letters, 18 selfloop transitions, 6 changer transitions 8/42 dead transitions. [2023-08-29 01:57:36,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 244 flow [2023-08-29 01:57:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:36,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-29 01:57:36,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5529715762273901 [2023-08-29 01:57:36,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-29 01:57:36,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-29 01:57:36,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:36,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-29 01:57:36,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 01:57:36,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 01:57:36,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 01:57:36,878 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 142 flow. Second operand 3 states and 214 transitions. [2023-08-29 01:57:36,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 244 flow [2023-08-29 01:57:36,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:57:36,882 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 156 flow [2023-08-29 01:57:36,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-29 01:57:36,883 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-29 01:57:36,883 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 156 flow [2023-08-29 01:57:36,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 01:57:36,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:36,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:36,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:57:36,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 01:57:36,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1792223474, now seen corresponding path program 1 times [2023-08-29 01:57:36,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:36,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442987803] [2023-08-29 01:57:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:36,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:57:36,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:57:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:57:36,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:57:36,945 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:57:36,946 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 01:57:36,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 01:57:36,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 01:57:36,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 01:57:36,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 01:57:36,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 01:57:36,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 01:57:36,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 01:57:36,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:57:36,950 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 01:57:36,955 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:57:36,956 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:57:36,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:57:36 BasicIcfg [2023-08-29 01:57:36,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:57:36,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:57:36,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:57:36,982 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:57:36,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:34" (3/4) ... [2023-08-29 01:57:36,984 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:57:36,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:57:36,985 INFO L158 Benchmark]: Toolchain (without parser) took 3945.15ms. Allocated memory was 69.2MB in the beginning and 125.8MB in the end (delta: 56.6MB). Free memory was 33.9MB in the beginning and 95.2MB in the end (delta: -61.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:36,986 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:36,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.70ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 33.7MB in the beginning and 77.4MB in the end (delta: -43.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-08-29 01:57:36,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.77ms. Allocated memory is still 104.9MB. Free memory was 77.4MB in the beginning and 75.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:57:36,987 INFO L158 Benchmark]: Boogie Preprocessor took 49.39ms. Allocated memory is still 104.9MB. Free memory was 75.4MB in the beginning and 73.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:57:36,988 INFO L158 Benchmark]: RCFGBuilder took 411.46ms. Allocated memory is still 104.9MB. Free memory was 73.7MB in the beginning and 60.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 01:57:36,988 INFO L158 Benchmark]: TraceAbstraction took 2903.08ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 60.3MB in the beginning and 95.2MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:36,989 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 125.8MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:36,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.70ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 33.7MB in the beginning and 77.4MB in the end (delta: -43.7MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.77ms. Allocated memory is still 104.9MB. Free memory was 77.4MB in the beginning and 75.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.39ms. Allocated memory is still 104.9MB. Free memory was 75.4MB in the beginning and 73.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.46ms. Allocated memory is still 104.9MB. Free memory was 73.7MB in the beginning and 60.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2903.08ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 60.3MB in the beginning and 95.2MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 125.8MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 79 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 27 TransitionsAfterwards, 1190 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 51 TotalNumberOfCompositions, 3792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1233, independent: 1006, independent conditional: 0, independent unconditional: 1006, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 583, independent: 543, independent conditional: 0, independent unconditional: 543, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1233, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 583, unknown conditional: 0, unknown unconditional: 583] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int glob; [L919] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t bad = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L934] 0 pthread_t id; [L935] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, bad={2:0}, glob=0, id={3:0}, mutex={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L936] COND TRUE 0 1 [L937] CALL 0 f(&bad) [L929] 1 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob++=0, glob=1, mutex={1:0}] [L923] 0 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob++=0, glob=1, m={2:0}, m={2:0}, mutex={1:0}] [L929] 1 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob++=0, glob++=25, glob=1, mutex={1:0}] [L923] 0 glob++ VAL [arg={0:0}, arg={0:0}, bad={2:0}, glob++=0, glob++=25, glob=1, m={2:0}, m={2:0}, mutex={1:0}] Now there is a data race on ~glob~0 between C: glob++ [929] and C: glob++ [923] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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 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: 929]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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, 96 locations, 8 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: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 4 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 01:57:37,034 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