./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.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/sigma.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 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:14:03,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:14:03,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:14:03,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:14:03,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:14:03,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:14:03,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:14:03,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:14:03,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:14:03,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:14:03,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:14:03,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:14:03,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:14:03,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:14:03,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:14:03,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:14:03,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:14:03,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:14:03,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:14:03,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:14:03,350 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:14:03,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:14:03,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:14:03,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:14:03,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:14:03,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:14:03,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:14:03,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:14:03,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:14:03,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:14:03,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:14:03,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:14:03,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:14:03,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:14:03,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:14:03,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:14:03,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:14:03,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:14:03,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:14:03,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:14:03,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:14:03,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:14:03,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:14:03,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:14:03,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:14:03,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:14:03,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:14:03,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:14:03,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:14:03,387 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:14:03,388 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:14:03,388 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:14:03,388 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:14:03,388 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:14:03,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:14:03,389 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:14:03,389 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:14:03,389 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:14:03,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:14:03,389 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:14:03,389 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:14:03,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:14:03,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:14:03,392 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:14:03,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:14:03,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:14:03,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:14:03,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:14:03,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:14:03,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:14:03,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:03,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:14:03,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:14:03,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:14:03,393 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:14:03,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:14:03,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:14:03,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:14:03,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:14:03,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2022-04-18 20:14:03,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:14:03,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:14:03,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:14:03,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:14:03,632 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:14:03,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2022-04-18 20:14:03,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7718560bd/7cb56104c57e44449272855a0b88cc82/FLAGee0940438 [2022-04-18 20:14:04,087 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:14:04,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2022-04-18 20:14:04,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7718560bd/7cb56104c57e44449272855a0b88cc82/FLAGee0940438 [2022-04-18 20:14:04,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7718560bd/7cb56104c57e44449272855a0b88cc82 [2022-04-18 20:14:04,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:14:04,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:14:04,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:04,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:14:04,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:14:04,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd90039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04, skipping insertion in model container [2022-04-18 20:14:04,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:14:04,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:14:04,532 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/sigma.i[55285,55298] [2022-04-18 20:14:04,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:04,563 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:14:04,601 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/sigma.i[55285,55298] [2022-04-18 20:14:04,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:04,669 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:14:04,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04 WrapperNode [2022-04-18 20:14:04,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:04,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:04,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:14:04,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:14:04,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,727 INFO L137 Inliner]: procedures = 323, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-04-18 20:14:04,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:04,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:14:04,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:14:04,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:14:04,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:14:04,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:14:04,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:14:04,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:14:04,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (1/1) ... [2022-04-18 20:14:04,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:04,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:04,803 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 20:14:04,832 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 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:14:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 20:14:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:14:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-04-18 20:14:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-04-18 20:14:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:14:04,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:14:04,850 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 20:14:04,929 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:14:04,930 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:14:05,187 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:14:05,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:14:05,197 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 20:14:05,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:05 BoogieIcfgContainer [2022-04-18 20:14:05,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:14:05,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:14:05,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:14:05,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:14:05,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:14:04" (1/3) ... [2022-04-18 20:14:05,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a11617d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:05, skipping insertion in model container [2022-04-18 20:14:05,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:04" (2/3) ... [2022-04-18 20:14:05,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a11617d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:05, skipping insertion in model container [2022-04-18 20:14:05,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:05" (3/3) ... [2022-04-18 20:14:05,206 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2022-04-18 20:14:05,210 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:14:05,210 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:14:05,211 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-04-18 20:14:05,211 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:14:05,270 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 20:14:05,308 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:14:05,313 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 20:14:05,313 INFO L341 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-04-18 20:14:05,325 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:14:05,335 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 192 transitions, 392 flow [2022-04-18 20:14:05,337 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 192 transitions, 392 flow [2022-04-18 20:14:05,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 192 transitions, 392 flow [2022-04-18 20:14:05,440 INFO L129 PetriNetUnfolder]: 13/281 cut-off events. [2022-04-18 20:14:05,440 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 20:14:05,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 281 events. 13/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 636 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 160. Up to 4 conditions per place. [2022-04-18 20:14:05,449 INFO L116 LiptonReduction]: Number of co-enabled transitions 3456 [2022-04-18 20:14:26,080 INFO L131 LiptonReduction]: Checked pairs total: 19609 [2022-04-18 20:14:26,081 INFO L133 LiptonReduction]: Total number of compositions: 186 [2022-04-18 20:14:26,086 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 68 transitions, 144 flow [2022-04-18 20:14:26,131 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 649 states, 576 states have (on average 2.0885416666666665) internal successors, (1203), 648 states have internal predecessors, (1203), 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 20:14:26,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 649 states, 576 states have (on average 2.0885416666666665) internal successors, (1203), 648 states have internal predecessors, (1203), 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 20:14:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:14:26,144 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:26,145 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:14:26,145 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 20:14:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash 658, now seen corresponding path program 1 times [2022-04-18 20:14:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:26,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737530136] [2022-04-18 20:14:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:26,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:26,243 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 20:14:26,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:26,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737530136] [2022-04-18 20:14:26,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737530136] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:26,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:26,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:14:26,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533864557] [2022-04-18 20:14:26,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:26,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:14:26,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:26,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:14:26,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:14:26,270 INFO L87 Difference]: Start difference. First operand has 649 states, 576 states have (on average 2.0885416666666665) internal successors, (1203), 648 states have internal predecessors, (1203), 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 20:14:26,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:26,331 INFO L93 Difference]: Finished difference Result 519 states and 961 transitions. [2022-04-18 20:14:26,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:14:26,333 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 20:14:26,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:26,342 INFO L225 Difference]: With dead ends: 519 [2022-04-18 20:14:26,342 INFO L226 Difference]: Without dead ends: 517 [2022-04-18 20:14:26,343 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 20:14:26,345 INFO L913 BasicCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:26,345 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-04-18 20:14:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2022-04-18 20:14:26,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 490 states have (on average 1.9551020408163264) internal successors, (958), 516 states have internal predecessors, (958), 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 20:14:26,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 958 transitions. [2022-04-18 20:14:26,389 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 958 transitions. Word has length 1 [2022-04-18 20:14:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:26,389 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 958 transitions. [2022-04-18 20:14:26,389 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 20:14:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 958 transitions. [2022-04-18 20:14:26,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 20:14:26,390 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:26,390 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 20:14:26,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:14:26,391 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 20:14:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash 629072533, now seen corresponding path program 1 times [2022-04-18 20:14:26,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:26,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177492037] [2022-04-18 20:14:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:26,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:26,455 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 20:14:26,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:26,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177492037] [2022-04-18 20:14:26,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177492037] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:26,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:26,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:26,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764872303] [2022-04-18 20:14:26,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:26,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:26,458 INFO L87 Difference]: Start difference. First operand 517 states and 958 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 20:14:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:26,502 INFO L93 Difference]: Finished difference Result 524 states and 972 transitions. [2022-04-18 20:14:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:26,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-04-18 20:14:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:26,504 INFO L225 Difference]: With dead ends: 524 [2022-04-18 20:14:26,504 INFO L226 Difference]: Without dead ends: 524 [2022-04-18 20:14:26,505 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 20:14:26,506 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:26,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-04-18 20:14:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2022-04-18 20:14:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 498 states have (on average 1.9518072289156627) internal successors, (972), 523 states have internal predecessors, (972), 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 20:14:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 972 transitions. [2022-04-18 20:14:26,519 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 972 transitions. Word has length 5 [2022-04-18 20:14:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:26,520 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 972 transitions. [2022-04-18 20:14:26,520 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 20:14:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 972 transitions. [2022-04-18 20:14:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 20:14:26,520 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:26,520 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:26,521 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:14:26,521 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 20:14:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1066720013, now seen corresponding path program 1 times [2022-04-18 20:14:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:26,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659711460] [2022-04-18 20:14:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:26,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:26,565 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 20:14:26,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:26,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659711460] [2022-04-18 20:14:26,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659711460] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:26,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:26,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:26,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198916827] [2022-04-18 20:14:26,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:26,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:26,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:26,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:26,567 INFO L87 Difference]: Start difference. First operand 524 states and 972 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 20:14:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:26,610 INFO L93 Difference]: Finished difference Result 524 states and 971 transitions. [2022-04-18 20:14:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:26,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-04-18 20:14:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:26,613 INFO L225 Difference]: With dead ends: 524 [2022-04-18 20:14:26,613 INFO L226 Difference]: Without dead ends: 524 [2022-04-18 20:14:26,613 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 20:14:26,614 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 24 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:26,614 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 54 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-04-18 20:14:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2022-04-18 20:14:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 498 states have (on average 1.9497991967871486) internal successors, (971), 523 states have internal predecessors, (971), 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 20:14:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 971 transitions. [2022-04-18 20:14:26,632 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 971 transitions. Word has length 8 [2022-04-18 20:14:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:26,632 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 971 transitions. [2022-04-18 20:14:26,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 20:14:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 971 transitions. [2022-04-18 20:14:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 20:14:26,633 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:26,633 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:26,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:14:26,633 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 20:14:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash -749651614, now seen corresponding path program 1 times [2022-04-18 20:14:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:26,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002831631] [2022-04-18 20:14:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:26,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:26,768 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 20:14:26,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:26,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002831631] [2022-04-18 20:14:26,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002831631] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:26,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:26,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:26,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456352533] [2022-04-18 20:14:26,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:26,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:26,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:26,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:26,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:26,770 INFO L87 Difference]: Start difference. First operand 524 states and 971 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 20:14:26,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:26,964 INFO L93 Difference]: Finished difference Result 638 states and 1158 transitions. [2022-04-18 20:14:26,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:26,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-04-18 20:14:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:26,966 INFO L225 Difference]: With dead ends: 638 [2022-04-18 20:14:26,966 INFO L226 Difference]: Without dead ends: 638 [2022-04-18 20:14:26,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:26,967 INFO L913 BasicCegarLoop]: 12 mSDtfsCounter, 66 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:26,968 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 30 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:14:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-04-18 20:14:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 558. [2022-04-18 20:14:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 536 states have (on average 1.9272388059701493) internal successors, (1033), 557 states have internal predecessors, (1033), 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 20:14:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1033 transitions. [2022-04-18 20:14:26,977 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1033 transitions. Word has length 11 [2022-04-18 20:14:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:26,978 INFO L478 AbstractCegarLoop]: Abstraction has 558 states and 1033 transitions. [2022-04-18 20:14:26,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 20:14:26,978 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1033 transitions. [2022-04-18 20:14:26,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:14:26,978 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:26,978 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:26,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:14:26,978 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 20:14:26,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:26,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1822233223, now seen corresponding path program 1 times [2022-04-18 20:14:26,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:26,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502632328] [2022-04-18 20:14:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:26,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:27,036 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 20:14:27,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:27,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502632328] [2022-04-18 20:14:27,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502632328] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:27,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:27,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:27,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231198672] [2022-04-18 20:14:27,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:27,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:27,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:27,038 INFO L87 Difference]: Start difference. First operand 558 states and 1033 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 20:14:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:27,076 INFO L93 Difference]: Finished difference Result 648 states and 1188 transitions. [2022-04-18 20:14:27,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:27,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-04-18 20:14:27,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:27,079 INFO L225 Difference]: With dead ends: 648 [2022-04-18 20:14:27,080 INFO L226 Difference]: Without dead ends: 648 [2022-04-18 20:14:27,080 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 20:14:27,081 INFO L913 BasicCegarLoop]: 56 mSDtfsCounter, 49 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:27,081 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 86 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:27,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-04-18 20:14:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 538. [2022-04-18 20:14:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 521 states have (on average 1.9021113243761996) internal successors, (991), 537 states have internal predecessors, (991), 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 20:14:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 991 transitions. [2022-04-18 20:14:27,091 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 991 transitions. Word has length 16 [2022-04-18 20:14:27,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:27,092 INFO L478 AbstractCegarLoop]: Abstraction has 538 states and 991 transitions. [2022-04-18 20:14:27,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 20:14:27,092 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 991 transitions. [2022-04-18 20:14:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:14:27,093 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:27,093 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:27,093 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:14:27,093 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-04-18 20:14:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:27,094 INFO L85 PathProgramCache]: Analyzing trace with hash 128314385, now seen corresponding path program 1 times [2022-04-18 20:14:27,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:27,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059895073] [2022-04-18 20:14:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:27,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 20:14:27,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 20:14:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 20:14:27,192 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 20:14:27,192 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 20:14:27,193 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-04-18 20:14:27,194 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 24 remaining) [2022-04-18 20:14:27,195 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-04-18 20:14:27,196 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-04-18 20:14:27,196 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-04-18 20:14:27,196 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-04-18 20:14:27,196 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-04-18 20:14:27,196 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-04-18 20:14:27,196 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:14:27,197 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-18 20:14:27,201 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:14:27,201 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:14:27,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:14:27 BasicIcfg [2022-04-18 20:14:27,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:14:27,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:14:27,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:14:27,238 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:14:27,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:05" (3/4) ... [2022-04-18 20:14:27,239 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 20:14:27,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:14:27,240 INFO L158 Benchmark]: Toolchain (without parser) took 23129.64ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 49.1MB in the beginning and 85.9MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:14:27,240 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:14:27,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.34ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 75.8MB in the end (delta: -26.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-04-18 20:14:27,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.97ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 72.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 20:14:27,240 INFO L158 Benchmark]: Boogie Preprocessor took 38.70ms. Allocated memory is still 121.6MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:27,241 INFO L158 Benchmark]: RCFGBuilder took 431.65ms. Allocated memory is still 121.6MB. Free memory was 70.3MB in the beginning and 51.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-04-18 20:14:27,241 INFO L158 Benchmark]: TraceAbstraction took 22037.15ms. Allocated memory is still 121.6MB. Free memory was 50.6MB in the beginning and 85.9MB in the end (delta: -35.3MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-04-18 20:14:27,241 INFO L158 Benchmark]: Witness Printer took 2.10ms. Allocated memory is still 121.6MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:14:27,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.34ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 75.8MB in the end (delta: -26.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.97ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 72.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.70ms. Allocated memory is still 121.6MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.65ms. Allocated memory is still 121.6MB. Free memory was 70.3MB in the beginning and 51.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22037.15ms. Allocated memory is still 121.6MB. Free memory was 50.6MB in the beginning and 85.9MB in the end (delta: -35.3MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 2.10ms. Allocated memory is still 121.6MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7s, 187 PlacesBefore, 69 PlacesAfterwards, 192 TransitionsBefore, 68 TransitionsAfterwards, 3456 CoEnabledTransitionPairs, 8 FixpointIterations, 94 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 6 ChoiceCompositions, 186 TotalNumberOfCompositions, 19609 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6811, positive: 6045, positive conditional: 0, positive unconditional: 6045, negative: 766, negative conditional: 0, negative unconditional: 766, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2247, positive: 2089, positive conditional: 0, positive unconditional: 2089, negative: 158, negative conditional: 0, negative unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2247, positive: 2057, positive conditional: 0, positive unconditional: 2057, negative: 190, negative conditional: 0, negative unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 190, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16054, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 477, negative conditional: 0, negative unconditional: 477, unknown: 15543, unknown conditional: 0, unknown unconditional: 15543] ], Cache Queries: [ total: 6811, positive: 3956, positive conditional: 0, positive unconditional: 3956, negative: 608, negative conditional: 0, negative unconditional: 608, unknown: 2247, unknown conditional: 0, unknown unconditional: 2247] , Statistics on independence cache: Total cache size (in pairs): 618, Positive cache size: 510, Positive conditional cache size: 0, Positive unconditional cache size: 510, Negative cache size: 108, Negative conditional cache size: 0, Negative unconditional cache size: 108 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1129]: Data race detected Data race detected The following path leads to a data race: [L1112] 0 const int SIGMA = 16; [L1113] 0 int *array; [L1114] 0 int array_index=-1; [L1122] 0 int tid, sum; [L1123] 0 pthread_t *t; [L1124] EXPR 0 sizeof(pthread_t) * SIGMA [L1124] 0 t = (pthread_t *)malloc(sizeof(pthread_t) * SIGMA) [L1125] EXPR 0 sizeof(int) * SIGMA [L1125] 0 array = (int *)malloc(sizeof(int) * SIGMA) [L1126] EXPR 0 \read(*t) [L1126] 0 assume_abort_if_not(t) [L1126] CALL 0 assume_abort_if_not(t) [L11] COND FALSE 0 !(!cond) [L1126] RET 0 assume_abort_if_not(t) [L1127] 0 assume_abort_if_not(array) [L1127] CALL 0 assume_abort_if_not(array) [L11] COND FALSE 0 !(!cond) [L1127] RET 0 assume_abort_if_not(array) [L1128] 0 tid=0 VAL [array={7:0}, array_index=-1, SIGMA=16, t={10:0}, tid=0] [L1128] 0 tid