./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.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-lit/fk2012.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 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:20:00,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:20:00,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:20:00,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:20:00,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:20:00,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:20:00,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:20:00,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:20:00,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:20:00,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:20:00,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:20:00,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:20:00,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:20:00,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:20:00,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:20:00,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:20:00,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:20:00,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:20:00,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:20:00,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:20:00,181 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:20:00,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:20:00,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:20:00,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:20:00,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:20:00,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:20:00,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:20:00,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:20:00,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:20:00,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:20:00,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:20:00,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:20:00,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:20:00,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:20:00,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:20:00,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:20:00,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:20:00,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:20:00,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:20:00,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:20:00,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:20:00,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:20:00,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:20:00,229 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:20:00,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:20:00,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:20:00,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:20:00,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:20:00,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:20:00,231 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:20:00,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:20:00,231 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:20:00,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:20:00,232 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:20:00,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:20:00,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:20:00,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:20:00,232 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:20:00,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:20:00,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:20:00,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:20:00,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:20:00,234 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:20:00,234 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:20:00,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:20:00,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:20:00,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:20:00,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:20:00,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:20:00,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:20:00,235 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:20:00,235 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:20:00,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:20:00,235 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:20:00,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:20:00,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:20:00,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:20:00,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:20:00,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:20:00,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:20:00,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:20:00,237 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:20:00,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:20:00,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:20:00,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:20:00,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:20:00,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2022-04-18 19:20:00,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:20:00,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:20:00,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:20:00,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:20:00,490 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:20:00,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.i [2022-04-18 19:20:00,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d080ff0e8/f6ba57efc9c64d09a465a521b65d2d1c/FLAG8ce3c8848 [2022-04-18 19:20:00,994 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:20:00,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.i [2022-04-18 19:20:01,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d080ff0e8/f6ba57efc9c64d09a465a521b65d2d1c/FLAG8ce3c8848 [2022-04-18 19:20:01,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d080ff0e8/f6ba57efc9c64d09a465a521b65d2d1c [2022-04-18 19:20:01,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:20:01,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:20:01,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:20:01,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:20:01,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:20:01,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd55fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01, skipping insertion in model container [2022-04-18 19:20:01,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:20:01,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:20:01,247 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-lit/fk2012.i[800,813] [2022-04-18 19:20:01,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:20:01,447 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:20:01,453 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-lit/fk2012.i[800,813] [2022-04-18 19:20:01,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:20:01,513 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:20:01,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01 WrapperNode [2022-04-18 19:20:01,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:20:01,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:20:01,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:20:01,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:20:01,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,569 INFO L137 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 254 [2022-04-18 19:20:01,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:20:01,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:20:01,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:20:01,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:20:01,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:20:01,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:20:01,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:20:01,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:20:01,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (1/1) ... [2022-04-18 19:20:01,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:20:01,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:20:01,632 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 19:20:01,635 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 19:20:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 19:20:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:20:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:20:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 19:20:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:20:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:20:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2022-04-18 19:20:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2022-04-18 19:20:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2022-04-18 19:20:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2022-04-18 19:20:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:20:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:20:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:20:01,676 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 19:20:01,814 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:20:01,815 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:20:02,049 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:20:02,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:20:02,100 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:20:02,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:20:02 BoogieIcfgContainer [2022-04-18 19:20:02,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:20:02,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:20:02,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:20:02,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:20:02,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:20:01" (1/3) ... [2022-04-18 19:20:02,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6ef5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:20:02, skipping insertion in model container [2022-04-18 19:20:02,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:01" (2/3) ... [2022-04-18 19:20:02,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6ef5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:20:02, skipping insertion in model container [2022-04-18 19:20:02,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:20:02" (3/3) ... [2022-04-18 19:20:02,126 INFO L111 eAbstractionObserver]: Analyzing ICFG fk2012.i [2022-04-18 19:20:02,129 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:20:02,131 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:20:02,131 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-04-18 19:20:02,131 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:20:02,168 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:20:02,194 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:20:02,198 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 19:20:02,198 INFO L341 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-04-18 19:20:02,207 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:20:02,216 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 201 transitions, 412 flow [2022-04-18 19:20:02,220 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 201 transitions, 412 flow [2022-04-18 19:20:02,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 198 places, 201 transitions, 412 flow [2022-04-18 19:20:02,283 INFO L129 PetriNetUnfolder]: 19/407 cut-off events. [2022-04-18 19:20:02,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:20:02,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 407 events. 19/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1736 event pairs, 1 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 187. Up to 8 conditions per place. [2022-04-18 19:20:02,306 INFO L116 LiptonReduction]: Number of co-enabled transitions 16396 [2022-04-18 19:20:04,956 INFO L131 LiptonReduction]: Checked pairs total: 76883 [2022-04-18 19:20:04,956 INFO L133 LiptonReduction]: Total number of compositions: 243 [2022-04-18 19:20:04,962 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 85 transitions, 180 flow [2022-04-18 19:20:05,163 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9712 states, 8984 states have (on average 3.129341050756901) internal successors, (28114), 9711 states have internal predecessors, (28114), 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 19:20:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 9712 states, 8984 states have (on average 3.129341050756901) internal successors, (28114), 9711 states have internal predecessors, (28114), 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 19:20:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 19:20:05,192 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:20:05,192 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 19:20:05,192 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 19:20:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:20:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2022-04-18 19:20:05,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:20:05,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066293446] [2022-04-18 19:20:05,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:20:05,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:20:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:20:05,265 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 19:20:05,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:20:05,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066293446] [2022-04-18 19:20:05,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066293446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:20:05,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:20:05,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 19:20:05,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609492369] [2022-04-18 19:20:05,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:20:05,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:20:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:20:05,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:20:05,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:20:05,305 INFO L87 Difference]: Start difference. First operand has 9712 states, 8984 states have (on average 3.129341050756901) internal successors, (28114), 9711 states have internal predecessors, (28114), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 19:20:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:20:05,421 INFO L93 Difference]: Finished difference Result 4821 states and 13697 transitions. [2022-04-18 19:20:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:20:05,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-04-18 19:20:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:20:05,493 INFO L225 Difference]: With dead ends: 4821 [2022-04-18 19:20:05,493 INFO L226 Difference]: Without dead ends: 4821 [2022-04-18 19:20:05,498 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 19:20:05,504 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:20:05,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:20:05,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4821 states. [2022-04-18 19:20:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4821 to 4821. [2022-04-18 19:20:05,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4821 states, 4728 states have (on average 2.896996615905245) internal successors, (13697), 4820 states have internal predecessors, (13697), 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 19:20:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4821 states to 4821 states and 13697 transitions. [2022-04-18 19:20:05,672 INFO L78 Accepts]: Start accepts. Automaton has 4821 states and 13697 transitions. Word has length 1 [2022-04-18 19:20:05,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:20:05,672 INFO L478 AbstractCegarLoop]: Abstraction has 4821 states and 13697 transitions. [2022-04-18 19:20:05,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 19:20:05,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4821 states and 13697 transitions. [2022-04-18 19:20:05,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:20:05,673 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:20:05,673 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:20:05,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:20:05,674 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting producerErr4ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 19:20:05,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:20:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash -928964288, now seen corresponding path program 1 times [2022-04-18 19:20:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:20:05,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715697461] [2022-04-18 19:20:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:20:05,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:20:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:20:05,729 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 19:20:05,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:20:05,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715697461] [2022-04-18 19:20:05,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715697461] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:20:05,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:20:05,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:20:05,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858601197] [2022-04-18 19:20:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:20:05,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:20:05,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:20:05,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:20:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:20:05,733 INFO L87 Difference]: Start difference. First operand 4821 states and 13697 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:20:05,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:20:05,871 INFO L93 Difference]: Finished difference Result 5452 states and 15176 transitions. [2022-04-18 19:20:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:20:05,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-04-18 19:20:05,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:20:05,895 INFO L225 Difference]: With dead ends: 5452 [2022-04-18 19:20:05,895 INFO L226 Difference]: Without dead ends: 5452 [2022-04-18 19:20:05,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:20:05,896 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 43 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:20:05,897 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 39 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:20:05,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5452 states. [2022-04-18 19:20:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5452 to 4415. [2022-04-18 19:20:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4353 states have (on average 2.821042958878934) internal successors, (12280), 4414 states have internal predecessors, (12280), 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 19:20:06,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 12280 transitions. [2022-04-18 19:20:06,010 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 12280 transitions. Word has length 6 [2022-04-18 19:20:06,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:20:06,010 INFO L478 AbstractCegarLoop]: Abstraction has 4415 states and 12280 transitions. [2022-04-18 19:20:06,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:20:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 12280 transitions. [2022-04-18 19:20:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:20:06,011 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:20:06,011 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:20:06,011 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:20:06,012 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 19:20:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:20:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash -929065535, now seen corresponding path program 1 times [2022-04-18 19:20:06,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:20:06,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400785850] [2022-04-18 19:20:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:20:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:20:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:20:06,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:20:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:20:06,085 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:20:06,085 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:20:06,086 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2022-04-18 19:20:06,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2022-04-18 19:20:06,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2022-04-18 19:20:06,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2022-04-18 19:20:06,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2022-04-18 19:20:06,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2022-04-18 19:20:06,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2022-04-18 19:20:06,093 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2022-04-18 19:20:06,093 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2022-04-18 19:20:06,093 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2022-04-18 19:20:06,093 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:20:06,094 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 19:20:06,095 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:20:06,095 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:20:06,131 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:20:06,136 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:20:06,140 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 19:20:06,141 INFO L341 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2022-04-18 19:20:06,145 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:20:06,146 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 341 transitions, 706 flow [2022-04-18 19:20:06,146 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 341 transitions, 706 flow [2022-04-18 19:20:06,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 335 places, 341 transitions, 706 flow [2022-04-18 19:20:06,378 INFO L129 PetriNetUnfolder]: 55/1085 cut-off events. [2022-04-18 19:20:06,379 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-04-18 19:20:06,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1085 events. 55/1085 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7269 event pairs, 4 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 698. Up to 18 conditions per place. [2022-04-18 19:20:06,506 INFO L116 LiptonReduction]: Number of co-enabled transitions 71708 [2022-04-18 19:20:13,063 INFO L131 LiptonReduction]: Checked pairs total: 493986 [2022-04-18 19:20:13,066 INFO L133 LiptonReduction]: Total number of compositions: 435 [2022-04-18 19:20:13,067 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 167 transitions, 358 flow