./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.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-ext/30_Function_Pointer3_vs.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 c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:16:26,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:16:26,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:16:26,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:16:26,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:16:26,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:16:26,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:16:26,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:16:26,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:16:26,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:16:26,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:16:26,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:16:26,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:16:26,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:16:26,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:16:26,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:16:26,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:16:26,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:16:26,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:16:26,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:16:26,437 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:16:26,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:16:26,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:16:26,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:16:26,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:16:26,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:16:26,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:16:26,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:16:26,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:16:26,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:16:26,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:16:26,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:16:26,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:16:26,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:16:26,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:16:26,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:16:26,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:16:26,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:16:26,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:16:26,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:16:26,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:16:26,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:16:26,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:16:26,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:16:26,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:16:26,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:16:26,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:16:26,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:16:26,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:16:26,486 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:16:26,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:16:26,486 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:16:26,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:16:26,487 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:16:26,487 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:16:26,487 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:16:26,487 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:16:26,487 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:16:26,488 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:16:26,488 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:16:26,488 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:16:26,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:16:26,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:16:26,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:16:26,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:16:26,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:16:26,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:16:26,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:16:26,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:16:26,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:16:26,490 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:16:26,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:16:26,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:16:26,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:16:26,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:16:26,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:16:26,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:16:26,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:16:26,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:16:26,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:16:26,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:16:26,492 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:16:26,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:16:26,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:16:26,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:16:26,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:16:26,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b500e58ad9de43c2267c6cdc33609b02abfe24fc1cf283e17f14a4a70ea61c [2022-04-18 19:16:26,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:16:26,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:16:26,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:16:26,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:16:26,732 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:16:26,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.i [2022-04-18 19:16:26,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/be0cd90d3/fd66c466e5ad4980919a4b5db2c03a90/FLAG7442fff20 [2022-04-18 19:16:27,218 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:16:27,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.i [2022-04-18 19:16:27,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/be0cd90d3/fd66c466e5ad4980919a4b5db2c03a90/FLAG7442fff20 [2022-04-18 19:16:27,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/be0cd90d3/fd66c466e5ad4980919a4b5db2c03a90 [2022-04-18 19:16:27,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:16:27,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:16:27,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:16:27,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:16:27,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:16:27,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e66da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27, skipping insertion in model container [2022-04-18 19:16:27,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:16:27,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:16:27,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.i[30577,30590] [2022-04-18 19:16:27,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:16:27,595 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:16:27,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/30_Function_Pointer3_vs.i[30577,30590] [2022-04-18 19:16:27,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:16:27,658 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:16:27,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27 WrapperNode [2022-04-18 19:16:27,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:16:27,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:16:27,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:16:27,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:16:27,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,694 INFO L137 Inliner]: procedures = 174, calls = 19, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 96 [2022-04-18 19:16:27,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:16:27,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:16:27,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:16:27,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:16:27,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:16:27,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:16:27,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:16:27,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:16:27,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (1/1) ... [2022-04-18 19:16:27,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:16:27,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:16:27,746 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 19:16:27,750 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 19:16:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 19:16:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 19:16:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:16:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:16:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:16:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:16:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:16:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:16:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:16:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:16:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:16:27,780 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 19:16:27,868 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:16:27,869 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:16:28,052 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:16:28,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:16:28,114 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 19:16:28,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:16:28 BoogieIcfgContainer [2022-04-18 19:16:28,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:16:28,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:16:28,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:16:28,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:16:28,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:16:27" (1/3) ... [2022-04-18 19:16:28,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfe6e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:16:28, skipping insertion in model container [2022-04-18 19:16:28,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:16:27" (2/3) ... [2022-04-18 19:16:28,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfe6e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:16:28, skipping insertion in model container [2022-04-18 19:16:28,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:16:28" (3/3) ... [2022-04-18 19:16:28,123 INFO L111 eAbstractionObserver]: Analyzing ICFG 30_Function_Pointer3_vs.i [2022-04-18 19:16:28,127 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:16:28,127 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:16:28,127 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-04-18 19:16:28,127 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:16:28,220 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:16:28,255 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:16:28,261 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 19:16:28,264 INFO L341 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-04-18 19:16:28,274 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:16:28,290 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 111 transitions, 232 flow [2022-04-18 19:16:28,295 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 111 transitions, 232 flow [2022-04-18 19:16:28,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 111 transitions, 232 flow [2022-04-18 19:16:28,348 INFO L129 PetriNetUnfolder]: 7/121 cut-off events. [2022-04-18 19:16:28,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:16:28,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 121 events. 7/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2022-04-18 19:16:28,358 INFO L116 LiptonReduction]: Number of co-enabled transitions 3736 [2022-04-18 19:16:31,454 INFO L131 LiptonReduction]: Checked pairs total: 4424 [2022-04-18 19:16:31,454 INFO L133 LiptonReduction]: Total number of compositions: 107 [2022-04-18 19:16:31,461 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 56 flow [2022-04-18 19:16:31,498 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 294 states, 270 states have (on average 2.8555555555555556) internal successors, (771), 293 states have internal predecessors, (771), 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 19:16:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 270 states have (on average 2.8555555555555556) internal successors, (771), 293 states have internal predecessors, (771), 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 19:16:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:16:31,506 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:31,506 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:16:31,507 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-04-18 19:16:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash 517926179, now seen corresponding path program 1 times [2022-04-18 19:16:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:16:31,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139808950] [2022-04-18 19:16:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:31,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:16:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:16:31,687 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 19:16:31,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:16:31,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139808950] [2022-04-18 19:16:31,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139808950] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:16:31,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:16:31,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:16:31,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890797935] [2022-04-18 19:16:31,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:16:31,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:16:31,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:16:31,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:16:31,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:16:31,722 INFO L87 Difference]: Start difference. First operand has 294 states, 270 states have (on average 2.8555555555555556) internal successors, (771), 293 states have internal predecessors, (771), 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 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 19:16:31,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:16:31,798 INFO L93 Difference]: Finished difference Result 153 states and 374 transitions. [2022-04-18 19:16:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:16:31,800 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 19:16:31,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:16:31,811 INFO L225 Difference]: With dead ends: 153 [2022-04-18 19:16:31,811 INFO L226 Difference]: Without dead ends: 153 [2022-04-18 19:16:31,812 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 19:16:31,816 INFO L913 BasicCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:16:31,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:16:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-04-18 19:16:31,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 118. [2022-04-18 19:16:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 117 states have internal predecessors, (288), 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 19:16:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 288 transitions. [2022-04-18 19:16:31,857 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 288 transitions. Word has length 5 [2022-04-18 19:16:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:16:31,857 INFO L478 AbstractCegarLoop]: Abstraction has 118 states and 288 transitions. [2022-04-18 19:16:31,857 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 19:16:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 288 transitions. [2022-04-18 19:16:31,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 19:16:31,858 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:31,858 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-04-18 19:16:31,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:16:31,859 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-04-18 19:16:31,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:31,859 INFO L85 PathProgramCache]: Analyzing trace with hash -558442411, now seen corresponding path program 1 times [2022-04-18 19:16:31,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:16:31,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936175765] [2022-04-18 19:16:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:31,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:16:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:16:31,900 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:16:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:16:31,935 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:16:31,935 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:16:31,937 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-04-18 19:16:31,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-04-18 19:16:31,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-04-18 19:16:31,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-04-18 19:16:31,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-04-18 19:16:31,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-04-18 19:16:31,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-04-18 19:16:31,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2022-04-18 19:16:31,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-04-18 19:16:31,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-04-18 19:16:31,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-04-18 19:16:31,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-04-18 19:16:31,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-04-18 19:16:31,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-04-18 19:16:31,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:16:31,943 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:16:31,944 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:16:31,944 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:16:31,969 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:16:31,971 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:16:31,972 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 19:16:31,972 INFO L341 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-04-18 19:16:31,975 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:16:31,975 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 187 transitions, 398 flow [2022-04-18 19:16:31,975 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 187 transitions, 398 flow [2022-04-18 19:16:31,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 186 places, 187 transitions, 398 flow [2022-04-18 19:16:32,010 INFO L129 PetriNetUnfolder]: 10/196 cut-off events. [2022-04-18 19:16:32,010 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:16:32,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 196 events. 10/196 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 409 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 205. Up to 6 conditions per place. [2022-04-18 19:16:32,036 INFO L116 LiptonReduction]: Number of co-enabled transitions 14620 [2022-04-18 19:16:35,989 INFO L131 LiptonReduction]: Checked pairs total: 18186 [2022-04-18 19:16:35,989 INFO L133 LiptonReduction]: Total number of compositions: 180 [2022-04-18 19:16:35,991 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 47 transitions, 118 flow [2022-04-18 19:16:36,189 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5573 states, 5415 states have (on average 3.879039704524469) internal successors, (21005), 5572 states have internal predecessors, (21005), 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 19:16:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 5573 states, 5415 states have (on average 3.879039704524469) internal successors, (21005), 5572 states have internal predecessors, (21005), 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 19:16:36,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:16:36,211 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:36,211 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:16:36,212 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-04-18 19:16:36,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 943010562, now seen corresponding path program 1 times [2022-04-18 19:16:36,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:16:36,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662306372] [2022-04-18 19:16:36,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:36,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:16:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:16:36,260 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 19:16:36,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:16:36,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662306372] [2022-04-18 19:16:36,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662306372] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:16:36,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:16:36,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:16:36,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789153269] [2022-04-18 19:16:36,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:16:36,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:16:36,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:16:36,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:16:36,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:16:36,287 INFO L87 Difference]: Start difference. First operand has 5573 states, 5415 states have (on average 3.879039704524469) internal successors, (21005), 5572 states have internal predecessors, (21005), 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 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 19:16:36,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:16:36,393 INFO L93 Difference]: Finished difference Result 2550 states and 9350 transitions. [2022-04-18 19:16:36,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:16:36,394 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 19:16:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:16:36,419 INFO L225 Difference]: With dead ends: 2550 [2022-04-18 19:16:36,419 INFO L226 Difference]: Without dead ends: 2550 [2022-04-18 19:16:36,420 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 19:16:36,425 INFO L913 BasicCegarLoop]: 14 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:16:36,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 20 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:16:36,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2022-04-18 19:16:36,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 1938. [2022-04-18 19:16:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1934 states have (on average 3.6783867631851086) internal successors, (7114), 1937 states have internal predecessors, (7114), 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 19:16:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 7114 transitions. [2022-04-18 19:16:36,565 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 7114 transitions. Word has length 5 [2022-04-18 19:16:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:16:36,565 INFO L478 AbstractCegarLoop]: Abstraction has 1938 states and 7114 transitions. [2022-04-18 19:16:36,568 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 19:16:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 7114 transitions. [2022-04-18 19:16:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:16:36,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:36,569 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:16:36,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:16:36,570 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-04-18 19:16:36,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash -252127242, now seen corresponding path program 1 times [2022-04-18 19:16:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:16:36,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088333728] [2022-04-18 19:16:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:36,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:16:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:16:36,646 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 19:16:36,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:16:36,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088333728] [2022-04-18 19:16:36,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088333728] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:16:36,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:16:36,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:16:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990356415] [2022-04-18 19:16:36,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:16:36,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:16:36,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:16:36,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:16:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:16:36,649 INFO L87 Difference]: Start difference. First operand 1938 states and 7114 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 19:16:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:16:36,726 INFO L93 Difference]: Finished difference Result 2206 states and 8081 transitions. [2022-04-18 19:16:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:16:36,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-04-18 19:16:36,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:16:36,744 INFO L225 Difference]: With dead ends: 2206 [2022-04-18 19:16:36,744 INFO L226 Difference]: Without dead ends: 2206 [2022-04-18 19:16:36,745 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 19:16:36,745 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:16:36,746 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:16:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-04-18 19:16:36,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2014. [2022-04-18 19:16:36,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2014 states, 2010 states have (on average 3.6696517412935323) internal successors, (7376), 2013 states have internal predecessors, (7376), 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 19:16:36,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2014 states to 2014 states and 7376 transitions. [2022-04-18 19:16:36,852 INFO L78 Accepts]: Start accepts. Automaton has 2014 states and 7376 transitions. Word has length 10 [2022-04-18 19:16:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:16:36,853 INFO L478 AbstractCegarLoop]: Abstraction has 2014 states and 7376 transitions. [2022-04-18 19:16:36,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 19:16:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2014 states and 7376 transitions. [2022-04-18 19:16:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 19:16:36,854 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:16:36,855 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:16:36,855 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:16:36,855 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-04-18 19:16:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:16:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1047144580, now seen corresponding path program 1 times [2022-04-18 19:16:36,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:16:36,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949733557] [2022-04-18 19:16:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:16:36,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:16:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:16:36,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:16:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:16:36,888 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:16:36,889 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:16:36,889 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2022-04-18 19:16:36,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2022-04-18 19:16:36,889 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2022-04-18 19:16:36,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2022-04-18 19:16:36,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2022-04-18 19:16:36,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2022-04-18 19:16:36,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2022-04-18 19:16:36,890 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2022-04-18 19:16:36,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-04-18 19:16:36,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2022-04-18 19:16:36,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2022-04-18 19:16:36,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2022-04-18 19:16:36,891 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2022-04-18 19:16:36,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2022-04-18 19:16:36,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2022-04-18 19:16:36,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2022-04-18 19:16:36,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2022-04-18 19:16:36,892 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2022-04-18 19:16:36,893 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2022-04-18 19:16:36,893 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2022-04-18 19:16:36,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:16:36,893 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 19:16:36,897 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-04-18 19:16:36,897 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 19:16:36,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:16:36 BasicIcfg [2022-04-18 19:16:36,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 19:16:36,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 19:16:36,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 19:16:36,926 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 19:16:36,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:16:28" (3/4) ... [2022-04-18 19:16:36,928 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 19:16:36,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 19:16:36,928 INFO L158 Benchmark]: Toolchain (without parser) took 9686.45ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 58.1MB in the beginning and 66.1MB in the end (delta: -8.0MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-04-18 19:16:36,929 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:16:36,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.07ms. Allocated memory is still 96.5MB. Free memory was 57.9MB in the beginning and 62.2MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 19:16:36,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.98ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 60.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:16:36,929 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 58.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:16:36,930 INFO L158 Benchmark]: RCFGBuilder took 398.46ms. Allocated memory is still 96.5MB. Free memory was 58.5MB in the beginning and 42.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 19:16:36,930 INFO L158 Benchmark]: TraceAbstraction took 8806.94ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 41.7MB in the beginning and 66.1MB in the end (delta: -24.3MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-04-18 19:16:36,930 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 146.8MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:16:36,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.07ms. Allocated memory is still 96.5MB. Free memory was 57.9MB in the beginning and 62.2MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.98ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 60.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 58.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.46ms. Allocated memory is still 96.5MB. Free memory was 58.5MB in the beginning and 42.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8806.94ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 41.7MB in the beginning and 66.1MB in the end (delta: -24.3MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 146.8MB. Free memory is still 66.1MB. 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: 3.2s, 111 PlacesBefore, 28 PlacesAfterwards, 111 TransitionsBefore, 23 TransitionsAfterwards, 3736 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 5 ChoiceCompositions, 107 TotalNumberOfCompositions, 4424 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3160, positive: 3072, positive conditional: 0, positive unconditional: 3072, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2308, positive: 2288, positive conditional: 0, positive unconditional: 2288, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2308, positive: 2278, positive conditional: 0, positive unconditional: 2278, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3160, positive: 784, positive conditional: 0, positive unconditional: 784, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 2308, unknown conditional: 0, unknown unconditional: 2308] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 186 PlacesBefore, 53 PlacesAfterwards, 187 TransitionsBefore, 47 TransitionsAfterwards, 14620 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 131 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 14 ConcurrentYvCompositions, 7 ChoiceCompositions, 180 TotalNumberOfCompositions, 18186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13641, positive: 13485, positive conditional: 0, positive unconditional: 13485, negative: 156, negative conditional: 0, negative unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9606, positive: 9556, positive conditional: 0, positive unconditional: 9556, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9606, positive: 9473, positive conditional: 0, positive unconditional: 9473, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 133, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 131, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13641, positive: 3929, positive conditional: 0, positive unconditional: 3929, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 9606, unknown conditional: 0, unknown unconditional: 9606] , Statistics on independence cache: Total cache size (in pairs): 316, Positive cache size: 295, Positive conditional cache size: 0, Positive unconditional cache size: 295, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - 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: 726]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int mutex; [L690] 0 int res; [L732] 0 pthread_t t; [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, mutex=0, pthread_create(&t, 0, thr1, 0)=-2, res=0, t={5:0}] [L724] COND TRUE 1 1 [L726] 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=0, res=0] [L734] COND TRUE 0 1 [L736] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [arg={0:0}, arg={0:0}, mutex=0, pthread_create(&t, 0, thr2, 0)=-1, res=0, t={5:0}] [L712] 2 FuncType pf; [L713] COND TRUE 2 __VERIFIER_nondet_int() [L714] 2 pf = f1 [L717] CALL 2 __VERIFIER_atomic_acquire() [L693] EXPR 2 mutex==0 [L693] CALL 2 assume_abort_if_not(mutex==0) [L3] COND FALSE 2 !(!cond) [L693] RET 2 assume_abort_if_not(mutex==0) [L694] 2 mutex = 1 [L717] RET 2 __VERIFIER_atomic_acquire() [L718] CALL, EXPR 2 pf(4,3) [L704] 2 return a+b+1; [L718] RET, EXPR 2 pf(4,3) [L718] 2 res = pf(4,3) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, mutex=1, pf={-1:0}, pf(4,3)=8, res=8, res = pf(4,3)=49] [L726] 1 res < 10 VAL [arg={0:0}, arg={0:0}, mutex=1, res=8] Now there is a data race on ~res~0 between C: res = pf(4,3) [718] and C: res < 10 [726] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 178 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 35 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 249 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 27 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5573occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 804 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-18 19:16:36,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE