./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.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/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:12:56,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:12:56,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:12:56,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:12:56,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:12:56,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:12:56,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:12:56,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:12:56,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:12:56,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:12:56,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:12:56,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:12:56,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:12:56,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:12:56,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:12:56,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:12:56,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:12:56,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:12:56,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:12:56,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:12:56,833 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:12:56,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:12:56,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:12:56,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:12:56,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:12:56,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:12:56,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:12:56,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:12:56,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:12:56,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:12:56,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:12:56,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:12:56,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:12:56,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:12:56,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:12:56,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:12:56,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:12:56,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:12:56,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:12:56,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:12:56,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:12:56,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:12:56,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:12:56,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:12:56,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:12:56,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:12:56,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:12:56,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:12:56,874 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:12:56,874 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:12:56,875 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:12:56,875 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:12:56,875 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:12:56,876 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:12:56,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:12:56,876 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:12:56,876 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:12:56,876 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:12:56,877 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:12:56,877 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:12:56,877 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:12:56,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:12:56,878 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:12:56,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:12:56,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:12:56,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:12:56,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:12:56,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:12:56,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:12:56,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:12:56,879 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:12:56,880 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:12:56,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:12:56,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:12:56,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:12:56,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:12:56,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:12:56,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:12:56,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:12:56,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:12:56,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:12:56,881 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:12:56,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:12:56,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:12:56,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:12:56,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:12:56,882 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb [2022-04-18 20:12:57,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:12:57,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:12:57,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:12:57,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:12:57,119 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:12:57,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2022-04-18 20:12:57,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/277f2e4f3/c54e55b04bc54628853acfbc125e7829/FLAG374723503 [2022-04-18 20:12:57,542 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:12:57,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2022-04-18 20:12:57,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/277f2e4f3/c54e55b04bc54628853acfbc125e7829/FLAG374723503 [2022-04-18 20:12:57,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/277f2e4f3/c54e55b04bc54628853acfbc125e7829 [2022-04-18 20:12:57,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:12:57,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:12:57,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:12:57,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:12:57,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:12:57,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:12:57" (1/1) ... [2022-04-18 20:12:57,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce80648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:57, skipping insertion in model container [2022-04-18 20:12:57,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:12:57" (1/1) ... [2022-04-18 20:12:57,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:12:57,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:12:58,296 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/bigshot_s2.i[55203,55216] [2022-04-18 20:12:58,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:12:58,316 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:12:58,354 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/bigshot_s2.i[55203,55216] [2022-04-18 20:12:58,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:12:58,401 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:12:58,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58 WrapperNode [2022-04-18 20:12:58,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:12:58,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:12:58,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:12:58,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:12:58,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,458 INFO L137 Inliner]: procedures = 323, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-04-18 20:12:58,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:12:58,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:12:58,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:12:58,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:12:58,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:12:58,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:12:58,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:12:58,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:12:58,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (1/1) ... [2022-04-18 20:12:58,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:12:58,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:12:58,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:12:58,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:12:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:12:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:12:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-18 20:12:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:12:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:12:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:12:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:12:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:12:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:12:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:12:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:12:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:12:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:12:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:12:58,558 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:12:58,627 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:12:58,628 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:12:58,778 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:12:58,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:12:58,783 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-18 20:12:58,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:12:58 BoogieIcfgContainer [2022-04-18 20:12:58,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:12:58,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:12:58,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:12:58,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:12:58,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:12:57" (1/3) ... [2022-04-18 20:12:58,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb750ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:12:58, skipping insertion in model container [2022-04-18 20:12:58,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:58" (2/3) ... [2022-04-18 20:12:58,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb750ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:12:58, skipping insertion in model container [2022-04-18 20:12:58,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:12:58" (3/3) ... [2022-04-18 20:12:58,791 INFO L111 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2022-04-18 20:12:58,796 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:12:58,796 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:12:58,796 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-04-18 20:12:58,796 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:12:58,837 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:12:58,886 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:12:58,911 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=FINITE_AUTOMATA, 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 20:12:58,912 INFO L341 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-04-18 20:12:58,924 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:12:58,934 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 110 transitions, 236 flow [2022-04-18 20:12:58,938 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 110 transitions, 236 flow [2022-04-18 20:12:58,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 110 transitions, 236 flow [2022-04-18 20:12:58,989 INFO L129 PetriNetUnfolder]: 4/108 cut-off events. [2022-04-18 20:12:58,989 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:12:58,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 108 events. 4/108 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-04-18 20:12:58,995 INFO L116 LiptonReduction]: Number of co-enabled transitions 666 [2022-04-18 20:13:01,237 INFO L131 LiptonReduction]: Checked pairs total: 718 [2022-04-18 20:13:01,237 INFO L133 LiptonReduction]: Total number of compositions: 120 [2022-04-18 20:13:01,243 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 62 flow [2022-04-18 20:13:01,253 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 31 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 30 states have internal predecessors, (48), 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 20:13:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 30 states have internal predecessors, (48), 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 20:13:01,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-04-18 20:13:01,257 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:13:01,257 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-04-18 20:13:01,258 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 20:13:01,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:13:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash 416388, now seen corresponding path program 1 times [2022-04-18 20:13:01,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:13:01,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214340843] [2022-04-18 20:13:01,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:13:01,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:13:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:13:01,367 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 20:13:01,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:13:01,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214340843] [2022-04-18 20:13:01,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214340843] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:13:01,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:13:01,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 20:13:01,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741596030] [2022-04-18 20:13:01,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:13:01,372 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:13:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:13:01,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:13:01,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:13:01,388 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 30 states have internal predecessors, (48), 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 20:13:01,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:13:01,410 INFO L93 Difference]: Finished difference Result 15 states and 21 transitions. [2022-04-18 20:13:01,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:13:01,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-04-18 20:13:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:13:01,415 INFO L225 Difference]: With dead ends: 15 [2022-04-18 20:13:01,415 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 20:13:01,416 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:13:01,418 INFO L913 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:13:01,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:13:01,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 20:13:01,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 20:13:01,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 20:13:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 20:13:01,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-04-18 20:13:01,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:13:01,434 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 20:13:01,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 20:13:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 20:13:01,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 20:13:01,436 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-04-18 20:13:01,436 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-04-18 20:13:01,436 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-04-18 20:13:01,436 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-04-18 20:13:01,437 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-04-18 20:13:01,437 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-04-18 20:13:01,437 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-04-18 20:13:01,437 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-04-18 20:13:01,437 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-04-18 20:13:01,438 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-04-18 20:13:01,438 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-04-18 20:13:01,438 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-04-18 20:13:01,438 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:13:01,440 INFO L719 BasicCegarLoop]: Path program histogram: [1] [2022-04-18 20:13:01,442 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:13:01,442 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:13:01,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:13:01 BasicIcfg [2022-04-18 20:13:01,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:13:01,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:13:01,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:13:01,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:13:01,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:12:58" (3/4) ... [2022-04-18 20:13:01,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 20:13:01,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 20:13:01,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 20:13:01,454 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 20:13:01,454 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 20:13:01,454 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 20:13:01,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 20:13:01,476 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 20:13:01,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:13:01,477 INFO L158 Benchmark]: Toolchain (without parser) took 3573.83ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.6MB in the beginning and 53.0MB in the end (delta: -2.4MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,477 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 88.1MB. Free memory was 69.1MB in the beginning and 69.0MB in the end (delta: 88.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:13:01,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.04ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 60.1MB in the end (delta: -9.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.00ms. Allocated memory is still 107.0MB. Free memory was 60.1MB in the beginning and 57.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,478 INFO L158 Benchmark]: Boogie Preprocessor took 38.16ms. Allocated memory is still 107.0MB. Free memory was 57.7MB in the beginning and 56.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,478 INFO L158 Benchmark]: RCFGBuilder took 286.70ms. Allocated memory is still 107.0MB. Free memory was 56.0MB in the beginning and 79.4MB in the end (delta: -23.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,479 INFO L158 Benchmark]: TraceAbstraction took 2659.27ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 78.9MB in the beginning and 56.3MB in the end (delta: 22.6MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,479 INFO L158 Benchmark]: Witness Printer took 31.24ms. Allocated memory is still 130.0MB. Free memory was 56.3MB in the beginning and 53.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 20:13:01,480 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 88.1MB. Free memory was 69.1MB in the beginning and 69.0MB in the end (delta: 88.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.04ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 60.1MB in the end (delta: -9.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.00ms. Allocated memory is still 107.0MB. Free memory was 60.1MB in the beginning and 57.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.16ms. Allocated memory is still 107.0MB. Free memory was 57.7MB in the beginning and 56.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.70ms. Allocated memory is still 107.0MB. Free memory was 56.0MB in the beginning and 79.4MB in the end (delta: -23.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2659.27ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 78.9MB in the beginning and 56.3MB in the end (delta: 22.6MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * Witness Printer took 31.24ms. Allocated memory is still 130.0MB. Free memory was 56.3MB in the beginning and 53.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 113 PlacesBefore, 28 PlacesAfterwards, 110 TransitionsBefore, 23 TransitionsAfterwards, 666 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 120 TotalNumberOfCompositions, 718 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 671, positive: 660, positive conditional: 0, positive unconditional: 660, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 473, positive: 465, positive conditional: 0, positive unconditional: 465, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 473, positive: 465, positive conditional: 0, positive unconditional: 465, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 671, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 473, unknown conditional: 0, unknown unconditional: 473] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - 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 - PositiveResult [Line: 1111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 145 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 20:13:01,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE