./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.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/23_lu-fig2.fixed.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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:07:04,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:07:04,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:07:04,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:07:04,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:07:04,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:07:04,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:07:04,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:07:04,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:07:04,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:07:04,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:07:04,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:07:04,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:07:04,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:07:04,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:07:04,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:07:04,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:07:04,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:07:04,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:07:04,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:07:04,492 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:07:04,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:07:04,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:07:04,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:07:04,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:07:04,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:07:04,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:07:04,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:07:04,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:07:04,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:07:04,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:07:04,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:07:04,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:07:04,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:07:04,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:07:04,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:07:04,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:07:04,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:07:04,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:07:04,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:07:04,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:07:04,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:07:04,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:07:04,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:07:04,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:07:04,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:07:04,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:07:04,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:07:04,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:07:04,533 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:07:04,533 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:07:04,533 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:07:04,534 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:07:04,534 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:07:04,534 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:07:04,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:07:04,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:07:04,534 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:07:04,534 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:07:04,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:07:04,535 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:07:04,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:07:04,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:07:04,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:07:04,538 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:07:04,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:07:04,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:07:04,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:07:04,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:07:04,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:07:04,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:07:04,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:07:04,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:07:04,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:07:04,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:07:04,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:07:04,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:07:04,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:07:04,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:07:04,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:07:04,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2022-04-18 19:07:04,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:07:04,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:07:04,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:07:04,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:07:04,753 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:07:04,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2022-04-18 19:07:04,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7489bc809/2e52111d9d5d4d50a8deb85f6eed0930/FLAG448186bee [2022-04-18 19:07:05,222 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:07:05,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2022-04-18 19:07:05,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7489bc809/2e52111d9d5d4d50a8deb85f6eed0930/FLAG448186bee [2022-04-18 19:07:05,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7489bc809/2e52111d9d5d4d50a8deb85f6eed0930 [2022-04-18 19:07:05,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:07:05,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:07:05,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:07:05,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:07:05,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:07:05,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:05,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2ac012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05, skipping insertion in model container [2022-04-18 19:07:05,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:05,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:07:05,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:07:05,886 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/23_lu-fig2.fixed.i[30382,30395] [2022-04-18 19:07:05,889 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/23_lu-fig2.fixed.i[30752,30765] [2022-04-18 19:07:05,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:07:05,905 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:07:05,942 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/23_lu-fig2.fixed.i[30382,30395] [2022-04-18 19:07:05,947 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/23_lu-fig2.fixed.i[30752,30765] [2022-04-18 19:07:05,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:07:05,978 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:07:05,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05 WrapperNode [2022-04-18 19:07:05,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:07:05,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:07:05,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:07:05,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:07:05,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,028 INFO L137 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 140 [2022-04-18 19:07:06,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:07:06,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:07:06,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:07:06,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:07:06,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:07:06,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:07:06,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:07:06,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:07:06,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (1/1) ... [2022-04-18 19:07:06,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:07:06,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:07:06,107 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 19:07:06,114 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 19:07:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:07:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:07:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:07:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:07:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:07:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:07:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:07:06,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:07:06,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:07:06,137 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 19:07:06,266 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:07:06,268 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:07:06,480 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:07:06,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:07:06,561 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-18 19:07:06,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:07:06 BoogieIcfgContainer [2022-04-18 19:07:06,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:07:06,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:07:06,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:07:06,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:07:06,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:07:05" (1/3) ... [2022-04-18 19:07:06,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d026ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:07:06, skipping insertion in model container [2022-04-18 19:07:06,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:07:05" (2/3) ... [2022-04-18 19:07:06,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d026ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:07:06, skipping insertion in model container [2022-04-18 19:07:06,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:07:06" (3/3) ... [2022-04-18 19:07:06,568 INFO L111 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2022-04-18 19:07:06,571 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:07:06,571 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:07:06,572 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-04-18 19:07:06,572 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:07:06,622 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:07:06,650 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:07:06,655 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 19:07:06,655 INFO L341 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-04-18 19:07:06,663 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:07:06,671 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 165 flow [2022-04-18 19:07:06,673 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 165 flow [2022-04-18 19:07:06,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 165 flow [2022-04-18 19:07:06,705 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2022-04-18 19:07:06,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:07:06,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-04-18 19:07:06,710 INFO L116 LiptonReduction]: Number of co-enabled transitions 1554 [2022-04-18 19:07:08,099 INFO L131 LiptonReduction]: Checked pairs total: 5818 [2022-04-18 19:07:08,099 INFO L133 LiptonReduction]: Total number of compositions: 79 [2022-04-18 19:07:08,105 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 81 flow [2022-04-18 19:07:08,126 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 305 states, 204 states have (on average 2.965686274509804) internal successors, (605), 304 states have internal predecessors, (605), 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 19:07:08,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 204 states have (on average 2.965686274509804) internal successors, (605), 304 states have internal predecessors, (605), 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 19:07:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-04-18 19:07:08,132 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:08,132 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-04-18 19:07:08,135 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 19:07:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash 574479, now seen corresponding path program 1 times [2022-04-18 19:07:08,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:08,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824669449] [2022-04-18 19:07:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:08,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:08,243 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 19:07:08,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:08,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824669449] [2022-04-18 19:07:08,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824669449] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:08,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:08,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:07:08,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492241438] [2022-04-18 19:07:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:08,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:07:08,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:08,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:07:08,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:07:08,265 INFO L87 Difference]: Start difference. First operand has 305 states, 204 states have (on average 2.965686274509804) internal successors, (605), 304 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:08,291 INFO L93 Difference]: Finished difference Result 97 states and 180 transitions. [2022-04-18 19:07:08,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:07:08,293 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-04-18 19:07:08,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:08,298 INFO L225 Difference]: With dead ends: 97 [2022-04-18 19:07:08,299 INFO L226 Difference]: Without dead ends: 83 [2022-04-18 19:07:08,299 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:07:08,301 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:08,302 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:07:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-04-18 19:07:08,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-04-18 19:07:08,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.9487179487179487) internal successors, (152), 82 states have internal predecessors, (152), 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 19:07:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 152 transitions. [2022-04-18 19:07:08,327 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 152 transitions. Word has length 3 [2022-04-18 19:07:08,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:08,327 INFO L478 AbstractCegarLoop]: Abstraction has 83 states and 152 transitions. [2022-04-18 19:07:08,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 152 transitions. [2022-04-18 19:07:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:07:08,328 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:08,328 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:07:08,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:07:08,328 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 19:07:08,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:08,329 INFO L85 PathProgramCache]: Analyzing trace with hash 17809220, now seen corresponding path program 1 times [2022-04-18 19:07:08,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:08,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20912834] [2022-04-18 19:07:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:08,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:08,393 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 19:07:08,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:08,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20912834] [2022-04-18 19:07:08,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20912834] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:08,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:08,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:07:08,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988584393] [2022-04-18 19:07:08,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:08,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:07:08,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:07:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:07:08,396 INFO L87 Difference]: Start difference. First operand 83 states and 152 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 19:07:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:08,427 INFO L93 Difference]: Finished difference Result 87 states and 155 transitions. [2022-04-18 19:07:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:07:08,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-04-18 19:07:08,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:08,431 INFO L225 Difference]: With dead ends: 87 [2022-04-18 19:07:08,431 INFO L226 Difference]: Without dead ends: 87 [2022-04-18 19:07:08,431 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 19:07:08,432 INFO L913 BasicCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:08,433 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:07:08,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-04-18 19:07:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2022-04-18 19:07:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.9066666666666667) internal successors, (143), 78 states have internal predecessors, (143), 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 19:07:08,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 143 transitions. [2022-04-18 19:07:08,451 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 143 transitions. Word has length 4 [2022-04-18 19:07:08,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:08,451 INFO L478 AbstractCegarLoop]: Abstraction has 79 states and 143 transitions. [2022-04-18 19:07:08,452 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 19:07:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 143 transitions. [2022-04-18 19:07:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:07:08,452 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:08,452 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:07:08,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:07:08,453 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 19:07:08,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash -66275264, now seen corresponding path program 1 times [2022-04-18 19:07:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:08,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808248531] [2022-04-18 19:07:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:08,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:08,504 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 19:07:08,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:08,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808248531] [2022-04-18 19:07:08,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808248531] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:08,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:08,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:07:08,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761671602] [2022-04-18 19:07:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:08,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:07:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:07:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:07:08,506 INFO L87 Difference]: Start difference. First operand 79 states and 143 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:08,532 INFO L93 Difference]: Finished difference Result 84 states and 148 transitions. [2022-04-18 19:07:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:07:08,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-04-18 19:07:08,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:08,534 INFO L225 Difference]: With dead ends: 84 [2022-04-18 19:07:08,534 INFO L226 Difference]: Without dead ends: 64 [2022-04-18 19:07:08,535 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 19:07:08,536 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:08,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 17 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:07:08,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-04-18 19:07:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-04-18 19:07:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.8833333333333333) internal successors, (113), 63 states have internal predecessors, (113), 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 19:07:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 113 transitions. [2022-04-18 19:07:08,540 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 113 transitions. Word has length 6 [2022-04-18 19:07:08,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:08,540 INFO L478 AbstractCegarLoop]: Abstraction has 64 states and 113 transitions. [2022-04-18 19:07:08,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,541 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 113 transitions. [2022-04-18 19:07:08,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 19:07:08,541 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:08,541 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:08,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:07:08,542 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 19:07:08,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:08,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2021060401, now seen corresponding path program 1 times [2022-04-18 19:07:08,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:08,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089614300] [2022-04-18 19:07:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:08,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:08,563 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 19:07:08,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:08,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089614300] [2022-04-18 19:07:08,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089614300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:08,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:08,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:07:08,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844225098] [2022-04-18 19:07:08,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:08,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:07:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:08,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:07:08,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:07:08,566 INFO L87 Difference]: Start difference. First operand 64 states and 113 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 19:07:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:08,584 INFO L93 Difference]: Finished difference Result 69 states and 121 transitions. [2022-04-18 19:07:08,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:07:08,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-04-18 19:07:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:08,585 INFO L225 Difference]: With dead ends: 69 [2022-04-18 19:07:08,585 INFO L226 Difference]: Without dead ends: 53 [2022-04-18 19:07:08,585 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 19:07:08,586 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:08,586 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:07:08,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-04-18 19:07:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2022-04-18 19:07:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 48 states have internal predecessors, (76), 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 19:07:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 76 transitions. [2022-04-18 19:07:08,589 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 76 transitions. Word has length 7 [2022-04-18 19:07:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:08,590 INFO L478 AbstractCegarLoop]: Abstraction has 49 states and 76 transitions. [2022-04-18 19:07:08,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 19:07:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2022-04-18 19:07:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:07:08,590 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:08,591 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:08,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:07:08,591 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-04-18 19:07:08,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:08,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1279669036, now seen corresponding path program 1 times [2022-04-18 19:07:08,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:08,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628924758] [2022-04-18 19:07:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:08,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:07:08,605 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:07:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:07:08,627 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:07:08,628 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:07:08,629 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2022-04-18 19:07:08,630 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2022-04-18 19:07:08,630 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2022-04-18 19:07:08,630 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2022-04-18 19:07:08,631 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2022-04-18 19:07:08,631 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2022-04-18 19:07:08,634 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2022-04-18 19:07:08,634 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2022-04-18 19:07:08,634 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2022-04-18 19:07:08,634 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2022-04-18 19:07:08,634 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2022-04-18 19:07:08,635 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2022-04-18 19:07:08,635 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2022-04-18 19:07:08,635 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2022-04-18 19:07:08,635 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2022-04-18 19:07:08,635 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2022-04-18 19:07:08,635 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2022-04-18 19:07:08,636 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2022-04-18 19:07:08,636 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2022-04-18 19:07:08,636 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2022-04-18 19:07:08,636 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2022-04-18 19:07:08,636 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2022-04-18 19:07:08,637 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2022-04-18 19:07:08,637 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2022-04-18 19:07:08,638 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2022-04-18 19:07:08,638 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2022-04-18 19:07:08,638 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2022-04-18 19:07:08,639 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2022-04-18 19:07:08,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:07:08,641 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 19:07:08,645 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 19:07:08,646 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 19:07:08,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:07:08 BasicIcfg [2022-04-18 19:07:08,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 19:07:08,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 19:07:08,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 19:07:08,666 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 19:07:08,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:07:06" (3/4) ... [2022-04-18 19:07:08,668 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 19:07:08,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 19:07:08,668 INFO L158 Benchmark]: Toolchain (without parser) took 3074.85ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 72.4MB in the beginning and 72.0MB in the end (delta: 412.4kB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2022-04-18 19:07:08,668 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:07:08,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.24ms. Allocated memory is still 102.8MB. Free memory was 72.0MB in the beginning and 68.4MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 19:07:08,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.12ms. Allocated memory is still 102.8MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:07:08,669 INFO L158 Benchmark]: Boogie Preprocessor took 43.55ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:07:08,670 INFO L158 Benchmark]: RCFGBuilder took 488.67ms. Allocated memory is still 102.8MB. Free memory was 64.7MB in the beginning and 42.4MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-04-18 19:07:08,670 INFO L158 Benchmark]: TraceAbstraction took 2101.42ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 42.0MB in the beginning and 73.0MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:07:08,670 INFO L158 Benchmark]: Witness Printer took 2.36ms. Allocated memory is still 130.0MB. Free memory was 73.0MB in the beginning and 72.0MB in the end (delta: 982.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:07:08,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.24ms. Allocated memory is still 102.8MB. Free memory was 72.0MB in the beginning and 68.4MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.12ms. Allocated memory is still 102.8MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.55ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.67ms. Allocated memory is still 102.8MB. Free memory was 64.7MB in the beginning and 42.4MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2101.42ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 42.0MB in the beginning and 73.0MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.36ms. Allocated memory is still 130.0MB. Free memory was 73.0MB in the beginning and 72.0MB in the end (delta: 982.1kB). 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: 1.4s, 82 PlacesBefore, 40 PlacesAfterwards, 80 TransitionsBefore, 38 TransitionsAfterwards, 1554 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 5818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3156, positive: 2932, positive conditional: 0, positive unconditional: 2932, negative: 224, negative conditional: 0, negative unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1408, positive: 1377, positive conditional: 0, positive unconditional: 1377, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1408, positive: 1064, positive conditional: 0, positive unconditional: 1064, negative: 344, negative conditional: 0, negative unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 344, positive: 313, positive conditional: 0, positive unconditional: 313, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3156, positive: 1555, positive conditional: 0, positive unconditional: 1555, negative: 193, negative conditional: 0, negative unconditional: 193, unknown: 1408, unknown conditional: 0, unknown unconditional: 1408] , Statistics on independence cache: Total cache size (in pairs): 246, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, 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: 724]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int mThread=0; [L689] 0 int start_main=0; [L690] 0 int mStartLock=0; [L691] 0 int __COUNT__ =0; [L733] 0 pthread_t t; [L734] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [__COUNT__=0, mStartLock=0, mThread=0, pthread_create(&t, 0, thr1, 0)=-1, start_main=0, t={3:0}] [L710] 1 int PR_CreateThread__RES = 1; [L711] CALL 1 __VERIFIER_atomic_acquire() [L694] EXPR 1 mStartLock==0 [L694] CALL 1 assume_abort_if_not(mStartLock==0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mStartLock==0) [L695] 1 mStartLock = 1 [L711] RET 1 __VERIFIER_atomic_acquire() [L712] 1 start_main=1 VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, PR_CreateThread__RES=1, start_main=1] [L735] CALL 0 thr2(0) [L724] 0 int self = mThread; VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L713] CALL 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L704] 1 __COUNT__ == 0 [L704] COND TRUE 1 __COUNT__ == 0 [L705] 1 mThread = PR_CreateThread__RES [L706] EXPR 1 __COUNT__ + 1 [L706] 1 __COUNT__ = __COUNT__ + 1 [L713] RET 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L724] 0 int self = mThread; VAL [__COUNT__=1, arg={0:0}, arg={0:0}, mStartLock=1, mThread=1, start_main=1] Now there is a data race on ~mThread~0 between C: mThread = PR_CreateThread__RES [705] and C: int self = mThread; [724] - 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: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: 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: 700]: 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: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: 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: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: 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 3 procedures, 102 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 41 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 19:07:08,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE