./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_06-ps_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:56:32,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:56:32,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:56:32,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:56:32,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:56:32,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:56:32,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:56:32,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:56:32,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:56:32,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:56:32,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:56:32,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:56:32,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:56:32,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:56:32,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:56:32,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:56:32,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:56:32,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:56:32,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:56:32,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:56:32,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:56:32,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:56:32,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:56:32,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:56:32,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:56:32,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:56:32,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:56:32,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:56:32,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:56:32,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:56:32,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:56:32,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:56:32,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:56:32,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:56:32,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:56:32,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:56:32,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:56:32,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:56:32,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:56:32,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:56:32,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:56:32,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:56:32,257 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:56:32,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:56:32,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:56:32,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:56:32,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:56:32,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:56:32,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:56:32,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:56:32,260 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:56:32,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:56:32,261 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:56:32,261 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:56:32,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:56:32,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:56:32,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:56:32,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:56:32,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:56:32,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:56:32,263 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:56:32,263 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:56:32,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:56:32,263 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:56:32,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:56:32,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:56:32,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:56:32,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:56:32,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:32,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:56:32,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:56:32,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:56:32,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:56:32,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:56:32,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:56:32,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:56:32,266 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:56:32,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:56:32,266 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:56:32,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:56:32,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:56:32,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:56:32,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:56:32,610 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:56:32,612 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:56:32,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2023-08-31 19:56:33,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:56:33,942 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:56:33,942 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.i [2023-08-31 19:56:33,953 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dce3800/82a9bee0160141e7a30903d94609bfe8/FLAG7ad39ebd5 [2023-08-31 19:56:33,966 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dce3800/82a9bee0160141e7a30903d94609bfe8 [2023-08-31 19:56:33,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:56:33,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:56:33,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:33,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:56:33,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:56:33,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:33" (1/1) ... [2023-08-31 19:56:33,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602eb54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:33, skipping insertion in model container [2023-08-31 19:56:33,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:33" (1/1) ... [2023-08-31 19:56:33,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:56:34,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:56:34,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:34,364 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:56:34,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:34,486 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:56:34,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34 WrapperNode [2023-08-31 19:56:34,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:34,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:34,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:56:34,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:56:34,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,545 INFO L138 Inliner]: procedures = 266, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-08-31 19:56:34,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:34,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:56:34,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:56:34,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:56:34,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:56:34,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:56:34,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:56:34,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:56:34,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (1/1) ... [2023-08-31 19:56:34,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:56:34,624 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) [2023-08-31 19:56:34,633 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 [2023-08-31 19:56:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:56:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:56:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:56:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:56:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:56:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:56:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:56:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:56:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:56:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:56:34,661 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:56:34,834 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:56:34,835 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:56:34,984 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:56:34,990 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:56:34,990 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:56:34,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:34 BoogieIcfgContainer [2023-08-31 19:56:34,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:56:34,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:56:34,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:56:35,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:56:35,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:56:33" (1/3) ... [2023-08-31 19:56:35,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:35, skipping insertion in model container [2023-08-31 19:56:35,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:34" (2/3) ... [2023-08-31 19:56:35,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a78b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:35, skipping insertion in model container [2023-08-31 19:56:35,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:34" (3/3) ... [2023-08-31 19:56:35,005 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2023-08-31 19:56:35,011 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:56:35,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:56:35,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:56:35,019 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:56:35,085 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:56:35,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2023-08-31 19:56:35,171 INFO L130 PetriNetUnfolder]: 3/76 cut-off events. [2023-08-31 19:56:35,171 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:35,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-31 19:56:35,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2023-08-31 19:56:35,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 155 flow [2023-08-31 19:56:35,185 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:56:35,198 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 155 flow [2023-08-31 19:56:35,202 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 155 flow [2023-08-31 19:56:35,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 155 flow [2023-08-31 19:56:35,233 INFO L130 PetriNetUnfolder]: 3/76 cut-off events. [2023-08-31 19:56:35,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:35,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-31 19:56:35,235 INFO L119 LiptonReduction]: Number of co-enabled transitions 1020 [2023-08-31 19:56:37,476 INFO L134 LiptonReduction]: Checked pairs total: 3997 [2023-08-31 19:56:37,476 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-31 19:56:37,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:56:37,493 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;@43bfd0b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:56:37,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 19:56:37,496 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-31 19:56:37,496 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:37,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:37,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:56:37,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:56:37,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:37,500 INFO L85 PathProgramCache]: Analyzing trace with hash 260568128, now seen corresponding path program 1 times [2023-08-31 19:56:37,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:37,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681260892] [2023-08-31 19:56:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:37,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:37,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:37,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681260892] [2023-08-31 19:56:37,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681260892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:37,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:37,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:37,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746659908] [2023-08-31 19:56:37,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:37,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:37,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:37,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:37,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 138 [2023-08-31 19:56:37,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2023-08-31 19:56:37,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:37,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 138 [2023-08-31 19:56:37,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:37,856 INFO L130 PetriNetUnfolder]: 63/173 cut-off events. [2023-08-31 19:56:37,856 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:37,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 173 events. 63/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 715 event pairs, 24 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 310. Up to 82 conditions per place. [2023-08-31 19:56:37,858 INFO L137 encePairwiseOnDemand]: 130/138 looper letters, 26 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-08-31 19:56:37,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 37 transitions, 141 flow [2023-08-31 19:56:37,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2023-08-31 19:56:37,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5748792270531401 [2023-08-31 19:56:37,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2023-08-31 19:56:37,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2023-08-31 19:56:37,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:37,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2023-08-31 19:56:37,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-31 19:56:37,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2023-08-31 19:56:37,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2023-08-31 19:56:37,881 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 238 transitions. [2023-08-31 19:56:37,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 37 transitions, 141 flow [2023-08-31 19:56:37,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:37,884 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 100 flow [2023-08-31 19:56:37,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2023-08-31 19:56:37,888 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-31 19:56:37,888 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 100 flow [2023-08-31 19:56:37,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2023-08-31 19:56:37,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:37,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:37,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:56:37,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:56:37,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:37,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1417966142, now seen corresponding path program 1 times [2023-08-31 19:56:37,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155180800] [2023-08-31 19:56:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:37,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:37,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:37,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155180800] [2023-08-31 19:56:37,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155180800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:37,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:37,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:37,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409238994] [2023-08-31 19:56:37,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:37,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:37,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:37,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:37,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:37,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 138 [2023-08-31 19:56:37,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-08-31 19:56:37,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:37,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 138 [2023-08-31 19:56:37,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:38,025 INFO L130 PetriNetUnfolder]: 54/163 cut-off events. [2023-08-31 19:56:38,026 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2023-08-31 19:56:38,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 163 events. 54/163 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 662 event pairs, 28 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 364. Up to 105 conditions per place. [2023-08-31 19:56:38,027 INFO L137 encePairwiseOnDemand]: 133/138 looper letters, 18 selfloop transitions, 6 changer transitions 2/36 dead transitions. [2023-08-31 19:56:38,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 176 flow [2023-08-31 19:56:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2023-08-31 19:56:38,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.538647342995169 [2023-08-31 19:56:38,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2023-08-31 19:56:38,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2023-08-31 19:56:38,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:38,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2023-08-31 19:56:38,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2023-08-31 19:56:38,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2023-08-31 19:56:38,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2023-08-31 19:56:38,033 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 100 flow. Second operand 3 states and 223 transitions. [2023-08-31 19:56:38,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 176 flow [2023-08-31 19:56:38,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:38,035 INFO L231 Difference]: Finished difference. Result has 30 places, 33 transitions, 130 flow [2023-08-31 19:56:38,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=30, PETRI_TRANSITIONS=33} [2023-08-31 19:56:38,036 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-31 19:56:38,036 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 33 transitions, 130 flow [2023-08-31 19:56:38,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-08-31 19:56:38,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:38,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:38,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:56:38,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:56:38,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:38,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1716698633, now seen corresponding path program 1 times [2023-08-31 19:56:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:38,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17411097] [2023-08-31 19:56:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:38,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:38,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:38,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17411097] [2023-08-31 19:56:38,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17411097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:38,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:38,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:38,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886897573] [2023-08-31 19:56:38,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:38,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:38,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:38,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:38,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 138 [2023-08-31 19:56:38,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 33 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-08-31 19:56:38,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:38,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 138 [2023-08-31 19:56:38,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:38,155 INFO L130 PetriNetUnfolder]: 64/182 cut-off events. [2023-08-31 19:56:38,155 INFO L131 PetriNetUnfolder]: For 113/123 co-relation queries the response was YES. [2023-08-31 19:56:38,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 182 events. 64/182 cut-off events. For 113/123 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 738 event pairs, 19 based on Foata normal form. 2/172 useless extension candidates. Maximal degree in co-relation 437. Up to 95 conditions per place. [2023-08-31 19:56:38,157 INFO L137 encePairwiseOnDemand]: 132/138 looper letters, 17 selfloop transitions, 7 changer transitions 10/44 dead transitions. [2023-08-31 19:56:38,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 237 flow [2023-08-31 19:56:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-08-31 19:56:38,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531400966183575 [2023-08-31 19:56:38,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-08-31 19:56:38,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-08-31 19:56:38,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:38,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-08-31 19:56:38,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-08-31 19:56:38,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2023-08-31 19:56:38,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2023-08-31 19:56:38,163 INFO L175 Difference]: Start difference. First operand has 30 places, 33 transitions, 130 flow. Second operand 3 states and 229 transitions. [2023-08-31 19:56:38,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 237 flow [2023-08-31 19:56:38,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:38,166 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 158 flow [2023-08-31 19:56:38,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-31 19:56:38,166 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-31 19:56:38,167 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 158 flow [2023-08-31 19:56:38,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-08-31 19:56:38,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:38,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:38,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:56:38,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:56:38,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1087079268, now seen corresponding path program 1 times [2023-08-31 19:56:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:38,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010494657] [2023-08-31 19:56:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:56:38,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:56:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:56:38,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:56:38,213 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:56:38,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 19:56:38,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 19:56:38,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-31 19:56:38,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-31 19:56:38,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 19:56:38,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 19:56:38,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 19:56:38,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:56:38,217 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 19:56:38,221 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:56:38,221 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:56:38,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:56:38 BasicIcfg [2023-08-31 19:56:38,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:56:38,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:56:38,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:56:38,244 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:56:38,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:34" (3/4) ... [2023-08-31 19:56:38,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:56:38,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:56:38,250 INFO L158 Benchmark]: Toolchain (without parser) took 4281.33ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.1MB in the beginning and 31.0MB in the end (delta: 14.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-08-31 19:56:38,253 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:38,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.15ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 36.9MB in the end (delta: 8.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-08-31 19:56:38,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.04ms. Allocated memory is still 69.2MB. Free memory was 36.9MB in the beginning and 34.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:56:38,254 INFO L158 Benchmark]: Boogie Preprocessor took 47.14ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 33.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:38,255 INFO L158 Benchmark]: RCFGBuilder took 403.47ms. Allocated memory is still 69.2MB. Free memory was 33.3MB in the beginning and 43.2MB in the end (delta: -9.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-08-31 19:56:38,258 INFO L158 Benchmark]: TraceAbstraction took 3244.75ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.5MB in the beginning and 31.7MB in the end (delta: 10.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-08-31 19:56:38,258 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 83.9MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:38,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.15ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 36.9MB in the end (delta: 8.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.04ms. Allocated memory is still 69.2MB. Free memory was 36.9MB in the beginning and 34.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.14ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 33.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 403.47ms. Allocated memory is still 69.2MB. Free memory was 33.3MB in the beginning and 43.2MB in the end (delta: -9.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3244.75ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.5MB in the beginning and 31.7MB in the end (delta: 10.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 5.68ms. Allocated memory is still 83.9MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 77 PlacesBefore, 26 PlacesAfterwards, 76 TransitionsBefore, 23 TransitionsAfterwards, 1020 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 3997 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1507, independent: 1239, independent conditional: 0, independent unconditional: 1239, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 551, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1507, independent: 725, independent conditional: 0, independent unconditional: 725, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 551, unknown conditional: 0, unknown unconditional: 551] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L930] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L938] 0 int i = __VERIFIER_nondet_int(); [L939] 0 pthread_t id; [L940] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=1, id={3:0}, m={1:0}, n={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L942] COND TRUE 0 \read(i) [L945] COND TRUE 0 \read(i) [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob++=0, glob=1, i=1, id={3:0}, m={1:0}, n={2:0}, pthread_mutex_lock(&m)=25, pthread_mutex_lock(&n)=0] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob++=0, glob++=26, glob=1, i=1, id={3:0}, m={1:0}, n={2:0}, pthread_mutex_lock(&m)=25] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] Now there is a data race on ~glob~0 between C: glob++ [946] and C: glob++ [933] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 940]: 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: 933]: 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, 94 locations, 7 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: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 33 mSDtfsCounter, 159 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=158occurred 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 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! [2023-08-31 19:56:38,297 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