./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.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 a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:59:00,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:59:00,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:59:00,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:59:00,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:59:00,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:59:00,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:59:00,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:59:00,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:59:00,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:59:00,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:59:00,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:59:00,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:59:00,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:59:00,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:59:00,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:59:00,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:59:00,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:59:00,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:59:00,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:59:00,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:59:00,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:59:00,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:59:00,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:59:00,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:59:00,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:59:00,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:59:00,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:59:00,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:59:00,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:59:00,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:59:00,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:59:00,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:59:00,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:59:00,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:59:00,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:59:00,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:59:00,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:59:00,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:59:00,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:59:00,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:59:00,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:59:00,625 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:59:00,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:59:00,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:59:00,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:59:00,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:59:00,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:59:00,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:59:00,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:59:00,627 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:59:00,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:59:00,628 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:59:00,628 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:59:00,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:59:00,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:59:00,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:59:00,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:59:00,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:59:00,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:59:00,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:59:00,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:59:00,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:59:00,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:59:00,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:59:00,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:59:00,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:59:00,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:59:00,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:59:00,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:59:00,631 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:59:00,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:59:00,631 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:59:00,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:59:00,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:59:00,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:59:00,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:59:00,885 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:59:00,886 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:59:00,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2023-08-31 19:59:01,815 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:59:02,031 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:59:02,031 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2023-08-31 19:59:02,043 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37679bdf8/6ff1e7ab49d740ccb3b9d9534b125792/FLAG305047cef [2023-08-31 19:59:02,067 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37679bdf8/6ff1e7ab49d740ccb3b9d9534b125792 [2023-08-31 19:59:02,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:59:02,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:59:02,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:59:02,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:59:02,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:59:02,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8e4cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02, skipping insertion in model container [2023-08-31 19:59:02,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:59:02,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:59:02,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:59:02,433 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:59:02,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:59:02,516 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:59:02,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02 WrapperNode [2023-08-31 19:59:02,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:59:02,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:59:02,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:59:02,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:59:02,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,562 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-08-31 19:59:02,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:59:02,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:59:02,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:59:02,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:59:02,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:59:02,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:59:02,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:59:02,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:59:02,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:59:02,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:02,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:59:02,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:59:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:59:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:59:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:59:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:59:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:59:02,653 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:59:02,737 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:59:02,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:59:02,886 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:59:02,890 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:59:02,891 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:59:02,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:02 BoogieIcfgContainer [2023-08-31 19:59:02,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:59:02,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:59:02,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:59:02,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:59:02,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:59:02" (1/3) ... [2023-08-31 19:59:02,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18dab03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:59:02, skipping insertion in model container [2023-08-31 19:59:02,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02" (2/3) ... [2023-08-31 19:59:02,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18dab03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:59:02, skipping insertion in model container [2023-08-31 19:59:02,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:02" (3/3) ... [2023-08-31 19:59:02,897 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2023-08-31 19:59:02,901 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:59:02,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:59:02,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:59:02,907 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:59:02,948 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:59:02,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2023-08-31 19:59:02,997 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2023-08-31 19:59:02,997 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:03,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-31 19:59:03,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 149 flow [2023-08-31 19:59:03,003 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2023-08-31 19:59:03,005 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:59:03,011 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 145 flow [2023-08-31 19:59:03,013 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 145 flow [2023-08-31 19:59:03,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 145 flow [2023-08-31 19:59:03,033 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2023-08-31 19:59:03,034 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:03,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-31 19:59:03,035 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-31 19:59:04,199 INFO L134 LiptonReduction]: Checked pairs total: 5426 [2023-08-31 19:59:04,199 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-31 19:59:04,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:59:04,213 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;@3bd2aac9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:59:04,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 19:59:04,216 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-31 19:59:04,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:04,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:04,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:04,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:04,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash 741880636, now seen corresponding path program 1 times [2023-08-31 19:59:04,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:04,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445700309] [2023-08-31 19:59:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:04,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:04,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:04,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445700309] [2023-08-31 19:59:04,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445700309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:04,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:04,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:04,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303541742] [2023-08-31 19:59:04,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:04,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:04,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:04,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:04,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:04,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 113 [2023-08-31 19:59:04,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:04,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:04,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 113 [2023-08-31 19:59:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:04,902 INFO L130 PetriNetUnfolder]: 112/276 cut-off events. [2023-08-31 19:59:04,902 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:04,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 276 events. 112/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1167 event pairs, 43 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 524. Up to 182 conditions per place. [2023-08-31 19:59:04,906 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 34 selfloop transitions, 22 changer transitions 0/64 dead transitions. [2023-08-31 19:59:04,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 64 transitions, 243 flow [2023-08-31 19:59:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:04,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 387 transitions. [2023-08-31 19:59:04,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707964601769911 [2023-08-31 19:59:04,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 387 transitions. [2023-08-31 19:59:04,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 387 transitions. [2023-08-31 19:59:04,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:04,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 387 transitions. [2023-08-31 19:59:04,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:04,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:04,925 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:04,926 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 63 flow. Second operand 6 states and 387 transitions. [2023-08-31 19:59:04,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 64 transitions, 243 flow [2023-08-31 19:59:04,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 64 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:04,929 INFO L231 Difference]: Finished difference. Result has 43 places, 51 transitions, 212 flow [2023-08-31 19:59:04,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=43, PETRI_TRANSITIONS=51} [2023-08-31 19:59:04,932 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-08-31 19:59:04,932 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 51 transitions, 212 flow [2023-08-31 19:59:04,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:04,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:04,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:04,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:59:04,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:04,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1416137447, now seen corresponding path program 1 times [2023-08-31 19:59:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275872514] [2023-08-31 19:59:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:05,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:05,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:05,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275872514] [2023-08-31 19:59:05,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275872514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:05,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:05,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561190592] [2023-08-31 19:59:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:05,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:05,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:05,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:05,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:05,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2023-08-31 19:59:05,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:05,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2023-08-31 19:59:05,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:05,309 INFO L130 PetriNetUnfolder]: 141/362 cut-off events. [2023-08-31 19:59:05,309 INFO L131 PetriNetUnfolder]: For 122/125 co-relation queries the response was YES. [2023-08-31 19:59:05,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 362 events. 141/362 cut-off events. For 122/125 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1681 event pairs, 44 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 846. Up to 223 conditions per place. [2023-08-31 19:59:05,314 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 45 selfloop transitions, 26 changer transitions 0/84 dead transitions. [2023-08-31 19:59:05,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 84 transitions, 438 flow [2023-08-31 19:59:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:05,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:05,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2023-08-31 19:59:05,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5412979351032449 [2023-08-31 19:59:05,318 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 367 transitions. [2023-08-31 19:59:05,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 367 transitions. [2023-08-31 19:59:05,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:05,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 367 transitions. [2023-08-31 19:59:05,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,323 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,324 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 212 flow. Second operand 6 states and 367 transitions. [2023-08-31 19:59:05,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 84 transitions, 438 flow [2023-08-31 19:59:05,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:05,329 INFO L231 Difference]: Finished difference. Result has 53 places, 72 transitions, 396 flow [2023-08-31 19:59:05,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=53, PETRI_TRANSITIONS=72} [2023-08-31 19:59:05,330 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2023-08-31 19:59:05,330 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 72 transitions, 396 flow [2023-08-31 19:59:05,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:05,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:05,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:59:05,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:05,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:05,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1853542636, now seen corresponding path program 1 times [2023-08-31 19:59:05,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:05,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090541529] [2023-08-31 19:59:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:05,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:05,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:05,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090541529] [2023-08-31 19:59:05,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090541529] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:05,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:05,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:05,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079201111] [2023-08-31 19:59:05,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:05,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:05,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:05,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:05,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 113 [2023-08-31 19:59:05,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 72 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:05,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 113 [2023-08-31 19:59:05,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:05,652 INFO L130 PetriNetUnfolder]: 227/535 cut-off events. [2023-08-31 19:59:05,652 INFO L131 PetriNetUnfolder]: For 424/426 co-relation queries the response was YES. [2023-08-31 19:59:05,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 535 events. 227/535 cut-off events. For 424/426 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2504 event pairs, 62 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 1633. Up to 406 conditions per place. [2023-08-31 19:59:05,656 INFO L137 encePairwiseOnDemand]: 99/113 looper letters, 68 selfloop transitions, 49 changer transitions 4/127 dead transitions. [2023-08-31 19:59:05,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 127 transitions, 862 flow [2023-08-31 19:59:05,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:05,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 350 transitions. [2023-08-31 19:59:05,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5162241887905604 [2023-08-31 19:59:05,658 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 350 transitions. [2023-08-31 19:59:05,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 350 transitions. [2023-08-31 19:59:05,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:05,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 350 transitions. [2023-08-31 19:59:05,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 58.333333333333336) internal successors, (350), 6 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,661 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,661 INFO L175 Difference]: Start difference. First operand has 53 places, 72 transitions, 396 flow. Second operand 6 states and 350 transitions. [2023-08-31 19:59:05,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 127 transitions, 862 flow [2023-08-31 19:59:05,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 127 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:05,668 INFO L231 Difference]: Finished difference. Result has 62 places, 115 transitions, 783 flow [2023-08-31 19:59:05,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=783, PETRI_PLACES=62, PETRI_TRANSITIONS=115} [2023-08-31 19:59:05,669 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 28 predicate places. [2023-08-31 19:59:05,669 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 115 transitions, 783 flow [2023-08-31 19:59:05,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:05,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:05,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:59:05,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:05,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:05,673 INFO L85 PathProgramCache]: Analyzing trace with hash -397352157, now seen corresponding path program 1 times [2023-08-31 19:59:05,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:05,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672094298] [2023-08-31 19:59:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:05,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:05,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:05,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672094298] [2023-08-31 19:59:05,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672094298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:05,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:05,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:05,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707729901] [2023-08-31 19:59:05,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:05,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:05,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:05,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:05,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:05,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 113 [2023-08-31 19:59:05,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 115 transitions, 783 flow. Second operand has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:05,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:05,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 113 [2023-08-31 19:59:05,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:06,048 INFO L130 PetriNetUnfolder]: 276/634 cut-off events. [2023-08-31 19:59:06,049 INFO L131 PetriNetUnfolder]: For 919/935 co-relation queries the response was YES. [2023-08-31 19:59:06,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2379 conditions, 634 events. 276/634 cut-off events. For 919/935 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3074 event pairs, 65 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 2356. Up to 523 conditions per place. [2023-08-31 19:59:06,052 INFO L137 encePairwiseOnDemand]: 99/113 looper letters, 105 selfloop transitions, 57 changer transitions 4/170 dead transitions. [2023-08-31 19:59:06,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 170 transitions, 1425 flow [2023-08-31 19:59:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 369 transitions. [2023-08-31 19:59:06,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5442477876106194 [2023-08-31 19:59:06,056 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 369 transitions. [2023-08-31 19:59:06,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 369 transitions. [2023-08-31 19:59:06,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:06,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 369 transitions. [2023-08-31 19:59:06,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:06,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:06,059 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:06,059 INFO L175 Difference]: Start difference. First operand has 62 places, 115 transitions, 783 flow. Second operand 6 states and 369 transitions. [2023-08-31 19:59:06,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 170 transitions, 1425 flow [2023-08-31 19:59:06,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 170 transitions, 1369 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:06,066 INFO L231 Difference]: Finished difference. Result has 71 places, 158 transitions, 1200 flow [2023-08-31 19:59:06,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1200, PETRI_PLACES=71, PETRI_TRANSITIONS=158} [2023-08-31 19:59:06,067 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 37 predicate places. [2023-08-31 19:59:06,068 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 158 transitions, 1200 flow [2023-08-31 19:59:06,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:06,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:06,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:06,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:59:06,068 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)] === [2023-08-31 19:59:06,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:06,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1472061973, now seen corresponding path program 1 times [2023-08-31 19:59:06,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:06,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384568432] [2023-08-31 19:59:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:06,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:59:06,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:59:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:59:06,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:59:06,137 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:59:06,137 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 19:59:06,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 19:59:06,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-31 19:59:06,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-31 19:59:06,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 19:59:06,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 19:59:06,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 19:59:06,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:59:06,140 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 19:59:06,144 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:59:06,144 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:59:06,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:59:06 BasicIcfg [2023-08-31 19:59:06,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:59:06,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:59:06,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:59:06,181 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:59:06,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:02" (3/4) ... [2023-08-31 19:59:06,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:59:06,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:59:06,183 INFO L158 Benchmark]: Toolchain (without parser) took 4112.56ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 54.7MB in the beginning and 58.5MB in the end (delta: -3.8MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-08-31 19:59:06,183 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 79.7MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:59:06,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.81ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 51.2MB in the end (delta: 3.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-08-31 19:59:06,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.97ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:59:06,184 INFO L158 Benchmark]: Boogie Preprocessor took 40.61ms. Allocated memory is still 79.7MB. Free memory was 49.1MB in the beginning and 47.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:59:06,187 INFO L158 Benchmark]: RCFGBuilder took 286.57ms. Allocated memory is still 79.7MB. Free memory was 47.3MB in the beginning and 33.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-31 19:59:06,187 INFO L158 Benchmark]: TraceAbstraction took 3287.23ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 33.0MB in the beginning and 58.5MB in the end (delta: -25.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 19:59:06,187 INFO L158 Benchmark]: Witness Printer took 1.98ms. Allocated memory is still 121.6MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:59:06,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 79.7MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.81ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 51.2MB in the end (delta: 3.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.97ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.61ms. Allocated memory is still 79.7MB. Free memory was 49.1MB in the beginning and 47.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.57ms. Allocated memory is still 79.7MB. Free memory was 47.3MB in the beginning and 33.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3287.23ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 33.0MB in the beginning and 58.5MB in the end (delta: -25.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 1.98ms. Allocated memory is still 121.6MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 74 PlacesBefore, 34 PlacesAfterwards, 71 TransitionsBefore, 30 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 5426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1104, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 461, independent: 410, independent conditional: 0, independent unconditional: 410, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1104, independent: 389, independent conditional: 0, independent unconditional: 389, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 461, unknown conditional: 0, unknown unconditional: 461] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L918-L921] 0 struct { int x; int y; } data; [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L928] 0 pthread_t id; [L929] COND TRUE 0 \read(j) [L929] 0 i = &data.x [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L932] EXPR 0 \read(*i) VAL [\read(*i)=0, arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [(*i)++=0, (*i)++=9, \read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] Now there is a data race (on the heap) between C: (*i)++ [932] and C: data.x++ [923] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 914 IncrementalHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 31 mSDtfsCounter, 914 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1200occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:59:06,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE