./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:56:02,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:56:02,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:56:02,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:56:02,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:56:02,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:56:02,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:56:02,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:56:02,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:56:02,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:56:02,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:56:02,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:56:02,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:56:02,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:56:02,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:56:02,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:56:02,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:56:02,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:56:02,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:56:02,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:56:02,776 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:56:02,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:56:02,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:56:02,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:56:02,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:56:02,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:56:02,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:56:02,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:56:02,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:56:02,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:56:02,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:56:02,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:56:02,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:56:02,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:56:02,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:56:02,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:56:02,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:56:02,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:56:02,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:56:02,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:56:02,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:56:02,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:56:02,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:56:02,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:56:02,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:56:02,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:56:02,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:56:02,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:56:02,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:56:02,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:56:02,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:56:02,808 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:56:02,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:56:02,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:56:02,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:56:02,810 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:56:02,811 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:56:02,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:56:02,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:56:02,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:56:02,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:56:02,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:56:02,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:56:02,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:56:02,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:56:02,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:56:02,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:56:02,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:56:02,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:56:02,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:56:02,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:56:02,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:56:02,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2022-04-18 15:56:02,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:56:03,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:56:03,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:56:03,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:56:03,024 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:56:03,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2022-04-18 15:56:03,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fadb0aec2/cb97dc3006bb4f6ba964f2077024adf2/FLAGca74b203d [2022-04-18 15:56:03,482 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:56:03,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2022-04-18 15:56:03,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fadb0aec2/cb97dc3006bb4f6ba964f2077024adf2/FLAGca74b203d [2022-04-18 15:56:03,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fadb0aec2/cb97dc3006bb4f6ba964f2077024adf2 [2022-04-18 15:56:03,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:56:03,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:56:03,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:56:03,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:56:03,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:56:03,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:56:03" (1/1) ... [2022-04-18 15:56:03,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e21c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:03, skipping insertion in model container [2022-04-18 15:56:03,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:56:03" (1/1) ... [2022-04-18 15:56:03,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:56:03,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:56:04,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2022-04-18 15:56:04,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2022-04-18 15:56:04,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:56:04,214 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:56:04,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2022-04-18 15:56:04,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2022-04-18 15:56:04,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:56:04,284 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:56:04,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04 WrapperNode [2022-04-18 15:56:04,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:56:04,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:56:04,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:56:04,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:56:04,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,337 INFO L137 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 140 [2022-04-18 15:56:04,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:56:04,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:56:04,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:56:04,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:56:04,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:56:04,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:56:04,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:56:04,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:56:04,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (1/1) ... [2022-04-18 15:56:04,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:56:04,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:56:04,405 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) [2022-04-18 15:56:04,407 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 [2022-04-18 15:56:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 15:56:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 15:56:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:56:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:56:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:56:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:56:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:56:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:56:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:56:04,434 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:56:04,531 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:56:04,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:56:04,734 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:56:04,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:56:04,823 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-18 15:56:04,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:04 BoogieIcfgContainer [2022-04-18 15:56:04,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:56:04,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:56:04,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:56:04,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:56:04,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:56:03" (1/3) ... [2022-04-18 15:56:04,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e0e568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:56:04, skipping insertion in model container [2022-04-18 15:56:04,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:56:04" (2/3) ... [2022-04-18 15:56:04,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e0e568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:56:04, skipping insertion in model container [2022-04-18 15:56:04,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:04" (3/3) ... [2022-04-18 15:56:04,831 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2022-04-18 15:56:04,834 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:56:04,834 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:56:04,834 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-04-18 15:56:04,834 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:56:04,857 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 15:56:04,901 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:56:04,915 INFO L340 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 [2022-04-18 15:56:04,927 INFO L341 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-04-18 15:56:04,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 165 flow [2022-04-18 15:56:04,977 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2022-04-18 15:56:04,978 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:56:04,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-04-18 15:56:04,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 165 flow [2022-04-18 15:56:04,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 161 flow [2022-04-18 15:56:04,991 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2022-04-18 15:56:04,991 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:56:04,992 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:04,992 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:56:04,995 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 15:56:04,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash 217094491, now seen corresponding path program 1 times [2022-04-18 15:56:05,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:05,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362520828] [2022-04-18 15:56:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:05,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:05,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:05,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362520828] [2022-04-18 15:56:05,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362520828] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:05,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:05,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 15:56:05,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798703912] [2022-04-18 15:56:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:05,160 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:56:05,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:05,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:56:05,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:56:05,181 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2022-04-18 15:56:05,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 161 flow. Second operand has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 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) [2022-04-18 15:56:05,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:05,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2022-04-18 15:56:05,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:05,215 INFO L129 PetriNetUnfolder]: 10/119 cut-off events. [2022-04-18 15:56:05,216 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:56:05,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 119 events. 10/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 240 event pairs, 9 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 122. Up to 26 conditions per place. [2022-04-18 15:56:05,217 INFO L132 encePairwiseOnDemand]: 64/80 looper letters, 7 selfloop transitions, 0 changer transitions 0/63 dead transitions. [2022-04-18 15:56:05,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 143 flow [2022-04-18 15:56:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:56:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:56:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 137 transitions. [2022-04-18 15:56:05,227 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.85625 [2022-04-18 15:56:05,227 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 137 transitions. [2022-04-18 15:56:05,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 137 transitions. [2022-04-18 15:56:05,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:05,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 137 transitions. [2022-04-18 15:56:05,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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) [2022-04-18 15:56:05,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-04-18 15:56:05,234 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-04-18 15:56:05,235 INFO L186 Difference]: Start difference. First operand has 81 places, 79 transitions, 161 flow. Second operand 2 states and 137 transitions. [2022-04-18 15:56:05,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 143 flow [2022-04-18 15:56:05,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:56:05,240 INFO L242 Difference]: Finished difference. Result has 66 places, 63 transitions, 128 flow [2022-04-18 15:56:05,241 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=128, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2022-04-18 15:56:05,244 INFO L335 CegarLoopForPetriNet]: 81 programPoint places, -15 predicate places. [2022-04-18 15:56:05,244 INFO L478 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 128 flow [2022-04-18 15:56:05,244 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 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) [2022-04-18 15:56:05,244 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:05,245 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:56:05,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:56:05,245 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 15:56:05,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:05,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2031990498, now seen corresponding path program 1 times [2022-04-18 15:56:05,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:05,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913265969] [2022-04-18 15:56:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:05,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:05,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:05,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913265969] [2022-04-18 15:56:05,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913265969] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:05,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:05,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:05,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569751459] [2022-04-18 15:56:05,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:05,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:05,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:05,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:05,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:05,328 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 80 [2022-04-18 15:56:05,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2022-04-18 15:56:05,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:05,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 80 [2022-04-18 15:56:05,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:05,429 INFO L129 PetriNetUnfolder]: 68/276 cut-off events. [2022-04-18 15:56:05,431 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:56:05,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 276 events. 68/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1114 event pairs, 35 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 419. Up to 112 conditions per place. [2022-04-18 15:56:05,436 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 16 selfloop transitions, 4 changer transitions 3/71 dead transitions. [2022-04-18 15:56:05,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 71 transitions, 190 flow [2022-04-18 15:56:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2022-04-18 15:56:05,442 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7125 [2022-04-18 15:56:05,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 171 transitions. [2022-04-18 15:56:05,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 171 transitions. [2022-04-18 15:56:05,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:05,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 171 transitions. [2022-04-18 15:56:05,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-04-18 15:56:05,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2022-04-18 15:56:05,447 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2022-04-18 15:56:05,447 INFO L186 Difference]: Start difference. First operand has 66 places, 63 transitions, 128 flow. Second operand 3 states and 171 transitions. [2022-04-18 15:56:05,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 71 transitions, 190 flow [2022-04-18 15:56:05,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 71 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:56:05,449 INFO L242 Difference]: Finished difference. Result has 70 places, 66 transitions, 158 flow [2022-04-18 15:56:05,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2022-04-18 15:56:05,450 INFO L335 CegarLoopForPetriNet]: 81 programPoint places, -11 predicate places. [2022-04-18 15:56:05,450 INFO L478 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 158 flow [2022-04-18 15:56:05,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2022-04-18 15:56:05,451 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:05,451 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:56:05,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:56:05,452 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 15:56:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash 929981608, now seen corresponding path program 1 times [2022-04-18 15:56:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:05,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076956741] [2022-04-18 15:56:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:05,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:05,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:05,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076956741] [2022-04-18 15:56:05,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076956741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:05,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:05,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839631782] [2022-04-18 15:56:05,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:05,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:05,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:05,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:05,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:05,500 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 80 [2022-04-18 15:56:05,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-04-18 15:56:05,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:05,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 80 [2022-04-18 15:56:05,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:05,556 INFO L129 PetriNetUnfolder]: 29/215 cut-off events. [2022-04-18 15:56:05,557 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 15:56:05,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 215 events. 29/215 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 850 event pairs, 2 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 306. Up to 38 conditions per place. [2022-04-18 15:56:05,560 INFO L132 encePairwiseOnDemand]: 76/80 looper letters, 11 selfloop transitions, 3 changer transitions 3/73 dead transitions. [2022-04-18 15:56:05,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 206 flow [2022-04-18 15:56:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:05,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2022-04-18 15:56:05,562 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-04-18 15:56:05,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2022-04-18 15:56:05,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2022-04-18 15:56:05,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:05,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2022-04-18 15:56:05,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2022-04-18 15:56:05,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2022-04-18 15:56:05,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2022-04-18 15:56:05,564 INFO L186 Difference]: Start difference. First operand has 70 places, 66 transitions, 158 flow. Second operand 3 states and 180 transitions. [2022-04-18 15:56:05,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 206 flow [2022-04-18 15:56:05,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:56:05,566 INFO L242 Difference]: Finished difference. Result has 72 places, 68 transitions, 172 flow [2022-04-18 15:56:05,567 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2022-04-18 15:56:05,567 INFO L335 CegarLoopForPetriNet]: 81 programPoint places, -9 predicate places. [2022-04-18 15:56:05,567 INFO L478 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 172 flow [2022-04-18 15:56:05,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-04-18 15:56:05,568 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:05,568 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:56:05,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:56:05,568 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 15:56:05,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:05,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1751531285, now seen corresponding path program 1 times [2022-04-18 15:56:05,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:05,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701093843] [2022-04-18 15:56:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:56:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:56:05,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:56:05,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701093843] [2022-04-18 15:56:05,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701093843] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:56:05,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:56:05,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:56:05,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693065244] [2022-04-18 15:56:05,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:56:05,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:56:05,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:56:05,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:56:05,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:56:05,602 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 80 [2022-04-18 15:56:05,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-04-18 15:56:05,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:56:05,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 80 [2022-04-18 15:56:05,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:56:05,660 INFO L129 PetriNetUnfolder]: 74/347 cut-off events. [2022-04-18 15:56:05,660 INFO L130 PetriNetUnfolder]: For 76/93 co-relation queries the response was YES. [2022-04-18 15:56:05,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 347 events. 74/347 cut-off events. For 76/93 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1687 event pairs, 11 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 610. Up to 111 conditions per place. [2022-04-18 15:56:05,662 INFO L132 encePairwiseOnDemand]: 76/80 looper letters, 15 selfloop transitions, 4 changer transitions 10/79 dead transitions. [2022-04-18 15:56:05,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 260 flow [2022-04-18 15:56:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:56:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:56:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2022-04-18 15:56:05,663 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7375 [2022-04-18 15:56:05,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2022-04-18 15:56:05,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2022-04-18 15:56:05,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:56:05,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2022-04-18 15:56:05,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-04-18 15:56:05,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2022-04-18 15:56:05,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2022-04-18 15:56:05,668 INFO L186 Difference]: Start difference. First operand has 72 places, 68 transitions, 172 flow. Second operand 3 states and 177 transitions. [2022-04-18 15:56:05,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 260 flow [2022-04-18 15:56:05,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 79 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:56:05,671 INFO L242 Difference]: Finished difference. Result has 74 places, 68 transitions, 190 flow [2022-04-18 15:56:05,671 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=74, PETRI_TRANSITIONS=68} [2022-04-18 15:56:05,672 INFO L335 CegarLoopForPetriNet]: 81 programPoint places, -7 predicate places. [2022-04-18 15:56:05,672 INFO L478 AbstractCegarLoop]: Abstraction has has 74 places, 68 transitions, 190 flow [2022-04-18 15:56:05,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-04-18 15:56:05,672 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:56:05,672 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:56:05,672 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:56:05,672 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 15:56:05,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:56:05,673 INFO L85 PathProgramCache]: Analyzing trace with hash 349093325, now seen corresponding path program 1 times [2022-04-18 15:56:05,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:56:05,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120864121] [2022-04-18 15:56:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:56:05,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:56:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:56:05,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 15:56:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 15:56:05,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 15:56:05,730 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 15:56:05,730 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2022-04-18 15:56:05,731 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2022-04-18 15:56:05,732 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2022-04-18 15:56:05,733 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2022-04-18 15:56:05,734 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2022-04-18 15:56:05,735 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2022-04-18 15:56:05,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:56:05,738 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 15:56:05,741 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:56:05,741 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:56:05,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:56:05 BasicIcfg [2022-04-18 15:56:05,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:56:05,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:56:05,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:56:05,767 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:56:05,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:56:04" (3/4) ... [2022-04-18 15:56:05,769 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 15:56:05,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:56:05,770 INFO L158 Benchmark]: Toolchain (without parser) took 1909.72ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 75.2MB in the beginning and 74.9MB in the end (delta: 279.0kB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-04-18 15:56:05,770 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:56:05,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.47ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 73.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 15:56:05,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.20ms. Allocated memory is still 107.0MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:56:05,771 INFO L158 Benchmark]: Boogie Preprocessor took 30.62ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 69.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:56:05,771 INFO L158 Benchmark]: RCFGBuilder took 455.56ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 47.1MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-04-18 15:56:05,772 INFO L158 Benchmark]: TraceAbstraction took 939.87ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 46.6MB in the beginning and 74.9MB in the end (delta: -28.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-04-18 15:56:05,772 INFO L158 Benchmark]: Witness Printer took 2.23ms. Allocated memory is still 138.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:56:05,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.47ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 73.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.20ms. Allocated memory is still 107.0MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.62ms. Allocated memory is still 107.0MB. Free memory was 71.3MB in the beginning and 69.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.56ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 47.1MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 939.87ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 46.6MB in the beginning and 74.9MB in the end (delta: -28.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 2.23ms. Allocated memory is still 138.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 724]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int mThread=0; VAL [mThread=0] [L689] 0 int start_main=0; VAL [mThread=0, start_main=0] [L690] 0 int mStartLock=0; VAL [mStartLock=0, mThread=0, start_main=0] [L691] 0 int __COUNT__ =0; VAL [__COUNT__=0, mStartLock=0, mThread=0, start_main=0] [L733] 0 pthread_t t; VAL [__COUNT__=0, mStartLock=0, mThread=0, start_main=0, t={3:0}] [L734] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [__COUNT__=0, mStartLock=0, mThread=0, pthread_create(&t, 0, thr1, 0)=-1, start_main=0, t={3:0}] [L735] CALL 0 thr2(0) [L724] 0 int self = mThread; VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=0, mThread=0, start_main=0] [L710] 1 int PR_CreateThread__RES = 1; VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=0, mThread=0, PR_CreateThread__RES=1, start_main=0] [L711] CALL 1 __VERIFIER_atomic_acquire() [L694] EXPR 1 mStartLock==0 [L694] CALL 1 assume_abort_if_not(mStartLock==0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mStartLock==0) [L695] 1 mStartLock = 1 [L711] RET 1 __VERIFIER_atomic_acquire() [L712] 1 start_main=1 VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, PR_CreateThread__RES=1, start_main=1] [L713] CALL 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L704] 1 __COUNT__ == 0 [L704] COND TRUE 1 __COUNT__ == 0 [L705] 1 mThread = PR_CreateThread__RES [L706] EXPR 1 __COUNT__ + 1 [L706] 1 __COUNT__ = __COUNT__ + 1 [L713] RET 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L724] 0 int self = mThread; VAL [__COUNT__=1, arg={0:0}, arg={0:0}, mStartLock=1, mThread=1, start_main=1] Now there is a data race on ~mThread~0 between C: mThread = PR_CreateThread__RES [705] and C: int self = mThread; [724] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 102 locations, 28 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: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=4, InterpolantAutomatonStates: 11, 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, 0.1s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 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 could not prove your program: unable to determine feasibility of some traces [2022-04-18 15:56:05,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE