./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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_07-ps_nr.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 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:28:13,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:28:13,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:28:13,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:28:13,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:28:13,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:28:13,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:28:13,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:28:13,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:28:13,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:28:13,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:28:13,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:28:13,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:28:13,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:28:13,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:28:13,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:28:13,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:28:13,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:28:13,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:28:13,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:28:13,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:28:13,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:28:13,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:28:13,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:28:14,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:28:14,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:28:14,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:28:14,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:28:14,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:28:14,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:28:14,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:28:14,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:28:14,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:28:14,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:28:14,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:28:14,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:28:14,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:28:14,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:28:14,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:28:14,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:28:14,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:28:14,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:28:14,050 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:28:14,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:28:14,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:28:14,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:28:14,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:28:14,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:28:14,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:28:14,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:28:14,053 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:28:14,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:28:14,054 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:28:14,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:28:14,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:28:14,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:28:14,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:28:14,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:28:14,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:28:14,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:28:14,056 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:28:14,056 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:28:14,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:28:14,056 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:28:14,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:28:14,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:28:14,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:28:14,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:28:14,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:14,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:28:14,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:28:14,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:28:14,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:28:14,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:28:14,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:28:14,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:28:14,059 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:28:14,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:28:14,059 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:28:14,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:28:14,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:28:14,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:28:14,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:28:14,385 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:28:14,386 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:28:14,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-29 17:28:15,486 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:28:15,732 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:28:15,733 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-29 17:28:15,745 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f4f3267/97823808a95d4ff08320717ca434a610/FLAG4aca83a58 [2023-08-29 17:28:15,758 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f4f3267/97823808a95d4ff08320717ca434a610 [2023-08-29 17:28:15,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:28:15,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:28:15,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:15,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:28:15,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:28:15,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:15" (1/1) ... [2023-08-29 17:28:15,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e673825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:15, skipping insertion in model container [2023-08-29 17:28:15,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:15" (1/1) ... [2023-08-29 17:28:15,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:28:15,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:28:16,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:16,261 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:28:16,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:16,375 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:28:16,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16 WrapperNode [2023-08-29 17:28:16,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:16,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:28:16,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:28:16,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:28:16,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,422 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-08-29 17:28:16,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:28:16,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:28:16,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:28:16,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:28:16,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,448 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:28:16,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:28:16,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:28:16,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:28:16,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (1/1) ... [2023-08-29 17:28:16,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:16,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:28:16,484 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 17:28:16,511 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 17:28:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:28:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:28:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:28:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:28:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:28:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:28:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:28:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:28:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:28:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:28:16,526 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 17:28:16,651 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:28:16,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:28:16,781 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:28:16,786 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:28:16,786 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:28:16,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:16 BoogieIcfgContainer [2023-08-29 17:28:16,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:28:16,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:28:16,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:28:16,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:28:16,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:28:15" (1/3) ... [2023-08-29 17:28:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6058b5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:28:16, skipping insertion in model container [2023-08-29 17:28:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:16" (2/3) ... [2023-08-29 17:28:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6058b5e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:28:16, skipping insertion in model container [2023-08-29 17:28:16,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:16" (3/3) ... [2023-08-29 17:28:16,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2023-08-29 17:28:16,804 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:28:16,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:28:16,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 17:28:16,820 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:28:16,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:28:16,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 70 transitions, 145 flow [2023-08-29 17:28:16,926 INFO L130 PetriNetUnfolder]: 3/69 cut-off events. [2023-08-29 17:28:16,926 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:16,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 3/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-29 17:28:16,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 70 transitions, 145 flow [2023-08-29 17:28:16,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 141 flow [2023-08-29 17:28:16,936 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:28:16,943 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 69 transitions, 141 flow [2023-08-29 17:28:16,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 69 transitions, 141 flow [2023-08-29 17:28:16,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 69 transitions, 141 flow [2023-08-29 17:28:16,961 INFO L130 PetriNetUnfolder]: 3/69 cut-off events. [2023-08-29 17:28:16,962 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:16,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 3/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-29 17:28:16,963 INFO L119 LiptonReduction]: Number of co-enabled transitions 1020 [2023-08-29 17:28:18,520 INFO L134 LiptonReduction]: Checked pairs total: 3551 [2023-08-29 17:28:18,520 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-29 17:28:18,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:28:18,538 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;@274ce9c2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:28:18,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 17:28:18,542 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-29 17:28:18,542 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:18,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:18,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:28:18,543 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)] === [2023-08-29 17:28:18,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:18,547 INFO L85 PathProgramCache]: Analyzing trace with hash 240743738, now seen corresponding path program 1 times [2023-08-29 17:28:18,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:18,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087848336] [2023-08-29 17:28:18,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:18,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:18,725 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 17:28:18,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:18,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087848336] [2023-08-29 17:28:18,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087848336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:18,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:18,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:18,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534685308] [2023-08-29 17:28:18,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:18,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:18,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:18,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:18,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 124 [2023-08-29 17:28:18,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 17:28:18,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:18,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 124 [2023-08-29 17:28:18,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:18,870 INFO L130 PetriNetUnfolder]: 63/174 cut-off events. [2023-08-29 17:28:18,870 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:18,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 174 events. 63/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 708 event pairs, 24 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 311. Up to 82 conditions per place. [2023-08-29 17:28:18,873 INFO L137 encePairwiseOnDemand]: 116/124 looper letters, 26 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-08-29 17:28:18,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 37 transitions, 141 flow [2023-08-29 17:28:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-08-29 17:28:18,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-29 17:28:18,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-08-29 17:28:18,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-08-29 17:28:18,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:18,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-08-29 17:28:18,890 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 17:28:18,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 17:28:18,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 17:28:18,896 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 217 transitions. [2023-08-29 17:28:18,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 37 transitions, 141 flow [2023-08-29 17:28:18,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:18,900 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 100 flow [2023-08-29 17:28:18,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, 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} [2023-08-29 17:28:18,904 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-29 17:28:18,905 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 100 flow [2023-08-29 17:28:18,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 17:28:18,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:18,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:18,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:28:18,906 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)] === [2023-08-29 17:28:18,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:18,907 INFO L85 PathProgramCache]: Analyzing trace with hash -370824918, now seen corresponding path program 1 times [2023-08-29 17:28:18,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:18,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492359138] [2023-08-29 17:28:18,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:18,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:18,983 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 17:28:18,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:18,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492359138] [2023-08-29 17:28:18,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492359138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:18,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:18,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:18,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308755129] [2023-08-29 17:28:18,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:18,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:18,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:18,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:18,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:19,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 124 [2023-08-29 17:28:19,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 17:28:19,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:19,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 124 [2023-08-29 17:28:19,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:19,055 INFO L130 PetriNetUnfolder]: 54/163 cut-off events. [2023-08-29 17:28:19,056 INFO L131 PetriNetUnfolder]: For 73/75 co-relation queries the response was YES. [2023-08-29 17:28:19,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 163 events. 54/163 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 662 event pairs, 29 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 364. Up to 105 conditions per place. [2023-08-29 17:28:19,057 INFO L137 encePairwiseOnDemand]: 119/124 looper letters, 18 selfloop transitions, 6 changer transitions 2/36 dead transitions. [2023-08-29 17:28:19,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 176 flow [2023-08-29 17:28:19,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2023-08-29 17:28:19,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543010752688172 [2023-08-29 17:28:19,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2023-08-29 17:28:19,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2023-08-29 17:28:19,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:19,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2023-08-29 17:28:19,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 17:28:19,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 17:28:19,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 17:28:19,063 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 100 flow. Second operand 3 states and 202 transitions. [2023-08-29 17:28:19,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 176 flow [2023-08-29 17:28:19,065 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 17:28:19,067 INFO L231 Difference]: Finished difference. Result has 30 places, 33 transitions, 130 flow [2023-08-29 17:28:19,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, 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} [2023-08-29 17:28:19,068 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-29 17:28:19,069 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 33 transitions, 130 flow [2023-08-29 17:28:19,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 17:28:19,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:19,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:19,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:28:19,070 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)] === [2023-08-29 17:28:19,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:19,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1373594043, now seen corresponding path program 1 times [2023-08-29 17:28:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:19,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310862885] [2023-08-29 17:28:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:19,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:19,111 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 17:28:19,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:19,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310862885] [2023-08-29 17:28:19,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310862885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:19,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:19,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35658720] [2023-08-29 17:28:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:19,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:19,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:19,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:19,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 124 [2023-08-29 17:28:19,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 33 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 17:28:19,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:19,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 124 [2023-08-29 17:28:19,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:19,252 INFO L130 PetriNetUnfolder]: 64/182 cut-off events. [2023-08-29 17:28:19,252 INFO L131 PetriNetUnfolder]: For 115/125 co-relation queries the response was YES. [2023-08-29 17:28:19,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 182 events. 64/182 cut-off events. For 115/125 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 727 event pairs, 20 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 437. Up to 95 conditions per place. [2023-08-29 17:28:19,254 INFO L137 encePairwiseOnDemand]: 118/124 looper letters, 17 selfloop transitions, 7 changer transitions 10/44 dead transitions. [2023-08-29 17:28:19,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 237 flow [2023-08-29 17:28:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:19,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2023-08-29 17:28:19,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2023-08-29 17:28:19,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2023-08-29 17:28:19,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2023-08-29 17:28:19,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:19,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2023-08-29 17:28:19,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-08-29 17:28:19,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 17:28:19,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 17:28:19,259 INFO L175 Difference]: Start difference. First operand has 30 places, 33 transitions, 130 flow. Second operand 3 states and 208 transitions. [2023-08-29 17:28:19,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 237 flow [2023-08-29 17:28:19,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:19,262 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 158 flow [2023-08-29 17:28:19,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, 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} [2023-08-29 17:28:19,263 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-29 17:28:19,263 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 158 flow [2023-08-29 17:28:19,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 17:28:19,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:19,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:19,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:28:19,264 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)] === [2023-08-29 17:28:19,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash 524810532, now seen corresponding path program 1 times [2023-08-29 17:28:19,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:19,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049245642] [2023-08-29 17:28:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:19,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:19,371 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 17:28:19,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049245642] [2023-08-29 17:28:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049245642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:19,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:19,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 17:28:19,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942605195] [2023-08-29 17:28:19,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:19,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 17:28:19,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:19,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 17:28:19,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 17:28:19,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 124 [2023-08-29 17:28:19,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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 17:28:19,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:19,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 124 [2023-08-29 17:28:19,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:19,445 INFO L130 PetriNetUnfolder]: 27/138 cut-off events. [2023-08-29 17:28:19,445 INFO L131 PetriNetUnfolder]: For 203/211 co-relation queries the response was YES. [2023-08-29 17:28:19,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 138 events. 27/138 cut-off events. For 203/211 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 655 event pairs, 9 based on Foata normal form. 9/141 useless extension candidates. Maximal degree in co-relation 385. Up to 66 conditions per place. [2023-08-29 17:28:19,446 INFO L137 encePairwiseOnDemand]: 119/124 looper letters, 14 selfloop transitions, 2 changer transitions 9/39 dead transitions. [2023-08-29 17:28:19,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 234 flow [2023-08-29 17:28:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 17:28:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 17:28:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2023-08-29 17:28:19,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4959677419354839 [2023-08-29 17:28:19,449 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 246 transitions. [2023-08-29 17:28:19,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 246 transitions. [2023-08-29 17:28:19,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:19,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 246 transitions. [2023-08-29 17:28:19,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 17:28:19,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 17:28:19,452 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 17:28:19,452 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 158 flow. Second operand 4 states and 246 transitions. [2023-08-29 17:28:19,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 234 flow [2023-08-29 17:28:19,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:19,455 INFO L231 Difference]: Finished difference. Result has 36 places, 29 transitions, 141 flow [2023-08-29 17:28:19,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2023-08-29 17:28:19,456 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2023-08-29 17:28:19,456 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 141 flow [2023-08-29 17:28:19,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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 17:28:19,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:19,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:19,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:28:19,457 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:28:19,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:19,457 INFO L85 PathProgramCache]: Analyzing trace with hash 122561592, now seen corresponding path program 2 times [2023-08-29 17:28:19,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:19,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762073910] [2023-08-29 17:28:19,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:19,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:19,543 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 17:28:19,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:19,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762073910] [2023-08-29 17:28:19,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762073910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:19,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:19,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 17:28:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833099875] [2023-08-29 17:28:19,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:19,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 17:28:19,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 17:28:19,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 17:28:19,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 124 [2023-08-29 17:28:19,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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 17:28:19,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:19,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 124 [2023-08-29 17:28:19,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:19,584 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-29 17:28:19,584 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 17:28:19,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 10 events. 0/10 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 3/13 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-29 17:28:19,584 INFO L137 encePairwiseOnDemand]: 121/124 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-08-29 17:28:19,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 10 transitions, 59 flow [2023-08-29 17:28:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 17:28:19,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 17:28:19,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2023-08-29 17:28:19,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2023-08-29 17:28:19,586 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 232 transitions. [2023-08-29 17:28:19,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 232 transitions. [2023-08-29 17:28:19,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:19,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 232 transitions. [2023-08-29 17:28:19,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 17:28:19,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 17:28:19,589 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 17:28:19,589 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 141 flow. Second operand 4 states and 232 transitions. [2023-08-29 17:28:19,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 10 transitions, 59 flow [2023-08-29 17:28:19,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 10 transitions, 40 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-29 17:28:19,589 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-29 17:28:19,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-29 17:28:19,590 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -8 predicate places. [2023-08-29 17:28:19,590 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-29 17:28:19,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 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 17:28:19,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 17:28:19,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 17:28:19,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-29 17:28:19,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-29 17:28:19,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 17:28:19,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 17:28:19,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 17:28:19,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:28:19,595 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-29 17:28:19,599 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:28:19,599 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:28:19,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:28:19 BasicIcfg [2023-08-29 17:28:19,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:28:19,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:28:19,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:28:19,603 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:28:19,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:16" (3/4) ... [2023-08-29 17:28:19,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 17:28:19,609 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 17:28:19,612 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-29 17:28:19,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 17:28:19,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 17:28:19,640 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 17:28:19,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:28:19,641 INFO L158 Benchmark]: Toolchain (without parser) took 3876.42ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 54.6MB in the beginning and 74.5MB in the end (delta: -19.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-08-29 17:28:19,641 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:28:19,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.46ms. Allocated memory is still 79.7MB. Free memory was 54.4MB in the beginning and 45.3MB in the end (delta: 9.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-08-29 17:28:19,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.30ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:19,642 INFO L158 Benchmark]: Boogie Preprocessor took 26.36ms. Allocated memory is still 79.7MB. Free memory was 43.3MB in the beginning and 42.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:19,642 INFO L158 Benchmark]: RCFGBuilder took 336.81ms. Allocated memory is still 79.7MB. Free memory was 41.6MB in the beginning and 29.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 17:28:19,643 INFO L158 Benchmark]: TraceAbstraction took 2811.93ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 28.6MB in the beginning and 77.7MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:28:19,643 INFO L158 Benchmark]: Witness Printer took 37.65ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 74.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:28:19,645 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 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.46ms. Allocated memory is still 79.7MB. Free memory was 54.4MB in the beginning and 45.3MB in the end (delta: 9.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.30ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.36ms. Allocated memory is still 79.7MB. Free memory was 43.3MB in the beginning and 42.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.81ms. Allocated memory is still 79.7MB. Free memory was 41.6MB in the beginning and 29.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2811.93ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 28.6MB in the beginning and 77.7MB in the end (delta: -49.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.65ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 74.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 70 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1020 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 54 TotalNumberOfCompositions, 3551 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1750, independent: 1518, independent conditional: 0, independent unconditional: 1518, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586, independent: 555, independent conditional: 0, independent unconditional: 555, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1750, independent: 963, independent conditional: 0, independent unconditional: 963, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 586, unknown conditional: 0, unknown unconditional: 586] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 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: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 40 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 17:28:19,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE