./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:19:24,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:19:24,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:19:24,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:19:24,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:19:24,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:19:24,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:19:24,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:19:24,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:19:24,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:19:24,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:19:24,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:19:24,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:19:24,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:19:24,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:19:24,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:19:24,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:19:24,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:19:24,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:19:24,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:19:24,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:19:24,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:19:24,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:19:24,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:19:25,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:19:25,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:19:25,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:19:25,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:19:25,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:19:25,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:19:25,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:19:25,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:19:25,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:19:25,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:19:25,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:19:25,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:19:25,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:19:25,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:19:25,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:19:25,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:19:25,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:19:25,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:19:25,053 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:19:25,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:19:25,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:19:25,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:19:25,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:19:25,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:19:25,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:19:25,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:19:25,057 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:19:25,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:19:25,058 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:19:25,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:19:25,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:19:25,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:19:25,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:19:25,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:19:25,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:19:25,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:19:25,059 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:19:25,059 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:19:25,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:19:25,060 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:19:25,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:19:25,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:19:25,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:19:25,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:19:25,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:19:25,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:19:25,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:19:25,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:19:25,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:19:25,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:19:25,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:19:25,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:19:25,063 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:19:25,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:19:25,063 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:19:25,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:19:25,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:19:25,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:19:25,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:19:25,400 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:19:25,401 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:19:25,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-29 03:19:26,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:19:26,807 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:19:26,808 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-29 03:19:26,821 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466eb9fb4/c60d237d075f41bcaf201ab2fc1ced4c/FLAG5fce727a6 [2023-08-29 03:19:26,837 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466eb9fb4/c60d237d075f41bcaf201ab2fc1ced4c [2023-08-29 03:19:26,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:19:26,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:19:26,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:19:26,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:19:26,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:19:26,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:19:26" (1/1) ... [2023-08-29 03:19:26,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624f77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:26, skipping insertion in model container [2023-08-29 03:19:26,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:19:26" (1/1) ... [2023-08-29 03:19:26,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:19:26,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:19:27,045 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-29 03:19:27,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:19:27,197 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:19:27,210 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-29 03:19:27,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:19:27,302 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:19:27,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27 WrapperNode [2023-08-29 03:19:27,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:19:27,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:19:27,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:19:27,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:19:27,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,360 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2023-08-29 03:19:27,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:19:27,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:19:27,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:19:27,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:19:27,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:19:27,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:19:27,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:19:27,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:19:27,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (1/1) ... [2023-08-29 03:19:27,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:19:27,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:19:27,470 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 03:19:27,496 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 03:19:27,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:19:27,511 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:19:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:19:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:19:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 03:19:27,513 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 03:19:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:19:27,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:19:27,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:19:27,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:19:27,515 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 03:19:27,695 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:19:27,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:19:27,927 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:19:27,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:19:27,936 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 03:19:27,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:19:27 BoogieIcfgContainer [2023-08-29 03:19:27,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:19:27,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:19:27,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:19:27,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:19:27,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:19:26" (1/3) ... [2023-08-29 03:19:27,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b966609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:19:27, skipping insertion in model container [2023-08-29 03:19:27,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:19:27" (2/3) ... [2023-08-29 03:19:27,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b966609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:19:27, skipping insertion in model container [2023-08-29 03:19:27,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:19:27" (3/3) ... [2023-08-29 03:19:27,947 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-29 03:19:27,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:19:27,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:19:27,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 03:19:27,964 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:19:28,036 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 03:19:28,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 85 transitions, 175 flow [2023-08-29 03:19:28,136 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2023-08-29 03:19:28,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:19:28,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 2/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 03:19:28,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 85 transitions, 175 flow [2023-08-29 03:19:28,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 84 transitions, 171 flow [2023-08-29 03:19:28,151 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:19:28,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 171 flow [2023-08-29 03:19:28,177 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 171 flow [2023-08-29 03:19:28,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 84 transitions, 171 flow [2023-08-29 03:19:28,211 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2023-08-29 03:19:28,212 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:19:28,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 2/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 03:19:28,215 INFO L119 LiptonReduction]: Number of co-enabled transitions 1050 [2023-08-29 03:19:30,536 INFO L134 LiptonReduction]: Checked pairs total: 3662 [2023-08-29 03:19:30,537 INFO L136 LiptonReduction]: Total number of compositions: 63 [2023-08-29 03:19:30,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:19:30,555 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;@41bc99f8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:19:30,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-29 03:19:30,559 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-29 03:19:30,560 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:19:30,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:19:30,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:19:30,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 03:19:30,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:19:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash -128688435, now seen corresponding path program 1 times [2023-08-29 03:19:30,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:19:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380033376] [2023-08-29 03:19:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:19:30,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:19:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:19:30,786 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 03:19:30,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:19:30,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380033376] [2023-08-29 03:19:30,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380033376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:19:30,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:19:30,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:19:30,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513643935] [2023-08-29 03:19:30,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:19:30,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:19:30,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:19:30,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:19:30,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:19:30,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 148 [2023-08-29 03:19:30,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 03:19:30,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:19:30,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 148 [2023-08-29 03:19:30,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:19:30,975 INFO L130 PetriNetUnfolder]: 77/212 cut-off events. [2023-08-29 03:19:30,976 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:19:30,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 212 events. 77/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 994 event pairs, 32 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 385. Up to 109 conditions per place. [2023-08-29 03:19:30,979 INFO L137 encePairwiseOnDemand]: 142/148 looper letters, 25 selfloop transitions, 4 changer transitions 2/37 dead transitions. [2023-08-29 03:19:30,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 139 flow [2023-08-29 03:19:30,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:19:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:19:30,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-08-29 03:19:30,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5968468468468469 [2023-08-29 03:19:31,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-08-29 03:19:31,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-08-29 03:19:31,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:19:31,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-08-29 03:19:31,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 03:19:31,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,019 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 59 flow. Second operand 3 states and 265 transitions. [2023-08-29 03:19:31,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 139 flow [2023-08-29 03:19:31,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:19:31,023 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 82 flow [2023-08-29 03:19:31,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-29 03:19:31,029 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-29 03:19:31,029 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 82 flow [2023-08-29 03:19:31,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 03:19:31,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:19:31,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:19:31,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:19:31,031 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 03:19:31,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:19:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash 306214503, now seen corresponding path program 1 times [2023-08-29 03:19:31,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:19:31,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396486392] [2023-08-29 03:19:31,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:19:31,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:19:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:19:31,136 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 03:19:31,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:19:31,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396486392] [2023-08-29 03:19:31,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396486392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:19:31,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:19:31,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:19:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737886061] [2023-08-29 03:19:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:19:31,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:19:31,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:19:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:19:31,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:19:31,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 148 [2023-08-29 03:19:31,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 03:19:31,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:19:31,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 148 [2023-08-29 03:19:31,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:19:31,228 INFO L130 PetriNetUnfolder]: 80/220 cut-off events. [2023-08-29 03:19:31,228 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-29 03:19:31,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 220 events. 80/220 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1040 event pairs, 59 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 452. Up to 163 conditions per place. [2023-08-29 03:19:31,230 INFO L137 encePairwiseOnDemand]: 143/148 looper letters, 23 selfloop transitions, 4 changer transitions 2/36 dead transitions. [2023-08-29 03:19:31,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 156 flow [2023-08-29 03:19:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:19:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:19:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-29 03:19:31,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5653153153153153 [2023-08-29 03:19:31,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-29 03:19:31,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-29 03:19:31,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:19:31,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-29 03:19:31,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 03:19:31,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,238 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 82 flow. Second operand 3 states and 251 transitions. [2023-08-29 03:19:31,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 156 flow [2023-08-29 03:19:31,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:19:31,241 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 106 flow [2023-08-29 03:19:31,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2023-08-29 03:19:31,242 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 03:19:31,242 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 106 flow [2023-08-29 03:19:31,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 03:19:31,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:19:31,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:19:31,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:19:31,243 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 03:19:31,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:19:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash 296279994, now seen corresponding path program 1 times [2023-08-29 03:19:31,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:19:31,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108545391] [2023-08-29 03:19:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:19:31,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:19:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:19:31,297 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 03:19:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:19:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108545391] [2023-08-29 03:19:31,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108545391] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:19:31,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:19:31,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:19:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881251103] [2023-08-29 03:19:31,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:19:31,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:19:31,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:19:31,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:19:31,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:19:31,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 148 [2023-08-29 03:19:31,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:19:31,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:19:31,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 148 [2023-08-29 03:19:31,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:19:31,388 INFO L130 PetriNetUnfolder]: 88/231 cut-off events. [2023-08-29 03:19:31,389 INFO L131 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2023-08-29 03:19:31,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 231 events. 88/231 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1097 event pairs, 52 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 516. Up to 172 conditions per place. [2023-08-29 03:19:31,390 INFO L137 encePairwiseOnDemand]: 142/148 looper letters, 24 selfloop transitions, 7 changer transitions 7/46 dead transitions. [2023-08-29 03:19:31,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 222 flow [2023-08-29 03:19:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:19:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:19:31,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-29 03:19:31,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-29 03:19:31,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-29 03:19:31,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-29 03:19:31,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:19:31,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-29 03:19:31,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 03:19:31,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,396 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 106 flow. Second operand 3 states and 259 transitions. [2023-08-29 03:19:31,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 222 flow [2023-08-29 03:19:31,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 208 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 03:19:31,398 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 133 flow [2023-08-29 03:19:31,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-08-29 03:19:31,399 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2023-08-29 03:19:31,399 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 133 flow [2023-08-29 03:19:31,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:19:31,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:19:31,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:19:31,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:19:31,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 03:19:31,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:19:31,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2070543308, now seen corresponding path program 1 times [2023-08-29 03:19:31,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:19:31,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827179826] [2023-08-29 03:19:31,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:19:31,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:19:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:19:31,495 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 03:19:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:19:31,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827179826] [2023-08-29 03:19:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827179826] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:19:31,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:19:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:19:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344077315] [2023-08-29 03:19:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:19:31,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:19:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:19:31,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:19:31,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:19:31,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 148 [2023-08-29 03:19:31,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 03:19:31,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:19:31,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 148 [2023-08-29 03:19:31,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:19:31,575 INFO L130 PetriNetUnfolder]: 58/192 cut-off events. [2023-08-29 03:19:31,575 INFO L131 PetriNetUnfolder]: For 82/86 co-relation queries the response was YES. [2023-08-29 03:19:31,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 192 events. 58/192 cut-off events. For 82/86 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 865 event pairs, 14 based on Foata normal form. 10/196 useless extension candidates. Maximal degree in co-relation 447. Up to 104 conditions per place. [2023-08-29 03:19:31,576 INFO L137 encePairwiseOnDemand]: 141/148 looper letters, 14 selfloop transitions, 5 changer transitions 16/43 dead transitions. [2023-08-29 03:19:31,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 218 flow [2023-08-29 03:19:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:19:31,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:19:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-29 03:19:31,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.581081081081081 [2023-08-29 03:19:31,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-29 03:19:31,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-29 03:19:31,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:19:31,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-29 03:19:31,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 03:19:31,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 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 03:19:31,582 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 133 flow. Second operand 3 states and 258 transitions. [2023-08-29 03:19:31,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 218 flow [2023-08-29 03:19:31,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 192 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-29 03:19:31,584 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 97 flow [2023-08-29 03:19:31,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-08-29 03:19:31,585 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 03:19:31,585 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 97 flow [2023-08-29 03:19:31,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 03:19:31,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:19:31,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:19:31,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:19:31,586 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 03:19:31,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:19:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1073866754, now seen corresponding path program 1 times [2023-08-29 03:19:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:19:31,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696683836] [2023-08-29 03:19:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:19:31,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:19:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:19:31,720 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 03:19:31,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:19:31,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696683836] [2023-08-29 03:19:31,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696683836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:19:31,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:19:31,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:19:31,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864883988] [2023-08-29 03:19:31,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:19:31,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:19:31,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:19:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:19:31,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 03:19:31,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 148 [2023-08-29 03:19:31,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 03:19:31,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:19:31,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 148 [2023-08-29 03:19:31,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:19:31,793 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2023-08-29 03:19:31,793 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 03:19:31,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 29 events. 0/29 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2023-08-29 03:19:31,794 INFO L137 encePairwiseOnDemand]: 144/148 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-29 03:19:31,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 19 transitions, 92 flow [2023-08-29 03:19:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:19:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:19:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2023-08-29 03:19:31,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388513513513513 [2023-08-29 03:19:31,795 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2023-08-29 03:19:31,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2023-08-29 03:19:31,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:19:31,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2023-08-29 03:19:31,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 03:19:31,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 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 03:19:31,798 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 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 03:19:31,798 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 97 flow. Second operand 4 states and 319 transitions. [2023-08-29 03:19:31,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 19 transitions, 92 flow [2023-08-29 03:19:31,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 70 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-29 03:19:31,799 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-29 03:19:31,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-29 03:19:31,800 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2023-08-29 03:19:31,800 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-29 03:19:31,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 03:19:31,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-08-29 03:19:31,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-29 03:19:31,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-29 03:19:31,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-29 03:19:31,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-29 03:19:31,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:19:31,804 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 03:19:31,808 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 03:19:31,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 03:19:31,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:19:31 BasicIcfg [2023-08-29 03:19:31,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 03:19:31,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 03:19:31,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 03:19:31,812 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 03:19:31,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:19:27" (3/4) ... [2023-08-29 03:19:31,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 03:19:31,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 03:19:31,823 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-29 03:19:31,823 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 03:19:31,823 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 03:19:31,824 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 03:19:31,857 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 03:19:31,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 03:19:31,858 INFO L158 Benchmark]: Toolchain (without parser) took 5016.93ms. Allocated memory was 73.4MB in the beginning and 121.6MB in the end (delta: 48.2MB). Free memory was 49.7MB in the beginning and 73.1MB in the end (delta: -23.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-08-29 03:19:31,858 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 03:19:31,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.60ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 30.5MB in the end (delta: 19.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-29 03:19:31,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.00ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 30.5MB in the beginning and 74.3MB in the end (delta: -43.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-29 03:19:31,859 INFO L158 Benchmark]: Boogie Preprocessor took 45.95ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 73.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 03:19:31,859 INFO L158 Benchmark]: RCFGBuilder took 501.42ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 59.6MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 03:19:31,860 INFO L158 Benchmark]: TraceAbstraction took 3870.66ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 58.5MB in the beginning and 76.2MB in the end (delta: -17.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-08-29 03:19:31,860 INFO L158 Benchmark]: Witness Printer took 45.53ms. Allocated memory is still 121.6MB. Free memory was 76.2MB in the beginning and 73.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:19:31,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.60ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 30.5MB in the end (delta: 19.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.00ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 30.5MB in the beginning and 74.3MB in the end (delta: -43.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.95ms. Allocated memory is still 94.4MB. Free memory was 74.3MB in the beginning and 73.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 501.42ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 59.6MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3870.66ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 58.5MB in the beginning and 76.2MB in the end (delta: -17.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 45.53ms. Allocated memory is still 121.6MB. Free memory was 76.2MB in the beginning and 73.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 86 PlacesBefore, 30 PlacesAfterwards, 84 TransitionsBefore, 28 TransitionsAfterwards, 1050 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 3662 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1392, independent: 1138, independent conditional: 0, independent unconditional: 1138, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 554, independent: 512, independent conditional: 0, independent unconditional: 512, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1392, independent: 626, independent conditional: 0, independent unconditional: 626, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 554, unknown conditional: 0, unknown unconditional: 554] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: 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, 101 locations, 5 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: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 10 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 03:19:31,884 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 Result: TRUE