./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.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/goblint-regression/28-race_reach_85-list2_racefree.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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:44:42,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:44:42,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:44:43,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:44:43,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:44:43,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:44:43,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:44:43,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:44:43,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:44:43,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:44:43,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:44:43,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:44:43,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:44:43,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:44:43,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:44:43,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:44:43,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:44:43,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:44:43,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:44:43,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:44:43,058 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:44:43,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:44:43,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:44:43,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:44:43,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:44:43,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:44:43,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:44:43,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:44:43,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:44:43,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:44:43,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:44:43,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:44:43,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:44:43,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:44:43,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:44:43,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:44:43,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:44:43,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:44:43,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:44:43,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:44:43,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:44:43,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:44:43,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:44:43,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:44:43,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:44:43,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:44:43,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:44:43,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:44:43,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:44:43,097 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:44:43,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:44:43,098 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:44:43,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:44:43,098 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:44:43,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:44:43,099 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:44:43,099 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:44:43,099 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:44:43,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:44:43,099 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:44:43,100 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:44:43,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:44:43,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:44:43,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:44:43,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:44:43,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:44:43,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:44:43,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:44:43,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:44:43,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:44:43,102 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:44:43,102 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:44:43,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:44:43,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:44:43,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:44:43,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:44:43,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:44:43,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:44:43,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:44:43,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:44:43,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:44:43,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:44:43,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:44:43,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:44:43,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:44:43,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:44:43,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-04-18 18:44:43,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:44:43,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:44:43,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:44:43,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:44:43,367 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:44:43,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2022-04-18 18:44:43,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/14a0e269a/70e08e9a272a497db85821065fc44415/FLAG03ff6429f [2022-04-18 18:44:43,901 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:44:43,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2022-04-18 18:44:43,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/14a0e269a/70e08e9a272a497db85821065fc44415/FLAG03ff6429f [2022-04-18 18:44:43,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/14a0e269a/70e08e9a272a497db85821065fc44415 [2022-04-18 18:44:43,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:44:43,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:44:43,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:44:43,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:44:43,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:44:43,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:44:43" (1/1) ... [2022-04-18 18:44:43,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d940c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:43, skipping insertion in model container [2022-04-18 18:44:43,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:44:43" (1/1) ... [2022-04-18 18:44:43,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:44:43,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:44:44,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-04-18 18:44:44,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:44:44,431 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:44:44,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-04-18 18:44:44,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:44:44,578 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:44:44,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44 WrapperNode [2022-04-18 18:44:44,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:44:44,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:44:44,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:44:44,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:44:44,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,655 INFO L137 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 517 [2022-04-18 18:44:44,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:44:44,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:44:44,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:44:44,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:44:44,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:44:44,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:44:44,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:44:44,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:44:44,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (1/1) ... [2022-04-18 18:44:44,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:44:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:44:44,796 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 18:44:44,814 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 18:44:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:44:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:44:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-04-18 18:44:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-04-18 18:44:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:44:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:44:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 18:44:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 18:44:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:44:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:44:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 18:44:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:44:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:44:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-04-18 18:44:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-04-18 18:44:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:44:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:44:44,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:44:44,847 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 18:44:45,027 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:44:45,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:44:45,585 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:44:45,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:44:45,598 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2022-04-18 18:44:45,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:44:45 BoogieIcfgContainer [2022-04-18 18:44:45,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:44:45,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:44:45,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:44:45,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:44:45,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:44:43" (1/3) ... [2022-04-18 18:44:45,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1139a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:44:45, skipping insertion in model container [2022-04-18 18:44:45,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:44" (2/3) ... [2022-04-18 18:44:45,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1139a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:44:45, skipping insertion in model container [2022-04-18 18:44:45,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:44:45" (3/3) ... [2022-04-18 18:44:45,622 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-04-18 18:44:45,626 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:44:45,634 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:44:45,636 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-04-18 18:44:45,636 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:44:45,837 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-04-18 18:44:45,896 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:44:45,904 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 18:44:45,905 INFO L341 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-04-18 18:44:45,928 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:44:45,939 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 535 places, 574 transitions, 1190 flow [2022-04-18 18:44:45,941 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 535 places, 574 transitions, 1190 flow [2022-04-18 18:44:45,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 535 places, 574 transitions, 1190 flow [2022-04-18 18:44:46,567 INFO L129 PetriNetUnfolder]: 165/1628 cut-off events. [2022-04-18 18:44:46,567 INFO L130 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2022-04-18 18:44:46,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 1628 events. 165/1628 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11557 event pairs, 0 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 836. Up to 16 conditions per place. [2022-04-18 18:44:46,773 INFO L116 LiptonReduction]: Number of co-enabled transitions 142406 [2022-04-18 18:46:07,950 WARN L232 SmtUtils]: Spent 9.28s on a formula simplification that was a NOOP. DAG size: 215 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:46:13,005 WARN L232 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:46:21,488 WARN L232 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:46:34,468 WARN L232 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 257 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:46:46,405 WARN L232 SmtUtils]: Spent 11.94s on a formula simplification that was a NOOP. DAG size: 249 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:46:57,334 WARN L232 SmtUtils]: Spent 10.93s on a formula simplification that was a NOOP. DAG size: 257 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:47:07,569 WARN L232 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 249 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:47:14,802 WARN L232 SmtUtils]: Spent 6.78s on a formula simplification. DAG size of input: 279 DAG size of output: 277 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:47:46,075 WARN L232 SmtUtils]: Spent 27.91s on a formula simplification. DAG size of input: 279 DAG size of output: 277 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:48:00,264 WARN L232 SmtUtils]: Spent 14.19s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:48:01,885 INFO L131 LiptonReduction]: Checked pairs total: 1269936 [2022-04-18 18:48:01,886 INFO L133 LiptonReduction]: Total number of compositions: 503 [2022-04-18 18:48:01,898 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 234 places, 265 transitions, 572 flow