./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_twice_3t.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-divine/one_time_barrier_twice_3t.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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:59:48,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:59:48,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:59:48,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:59:48,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:59:48,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:59:48,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:59:48,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:59:48,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:59:48,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:59:48,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:59:48,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:59:48,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:59:48,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:59:48,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:59:48,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:59:48,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:59:48,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:59:48,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:59:48,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:59:48,172 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:59:48,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:59:48,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:59:48,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:59:48,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:59:48,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:59:48,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:59:48,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:59:48,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:59:48,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:59:48,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:59:48,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:59:48,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:59:48,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:59:48,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:59:48,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:59:48,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:59:48,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:59:48,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:59:48,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:59:48,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:59:48,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:59:48,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:59:48,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:59:48,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:59:48,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:59:48,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:59:48,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:59:48,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:59:48,205 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:59:48,205 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:59:48,206 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:59:48,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:59:48,206 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:59:48,206 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:59:48,207 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:59:48,207 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:59:48,207 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:59:48,207 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:59:48,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:59:48,207 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:59:48,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:59:48,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:59:48,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:59:48,209 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:59:48,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:59:48,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:59:48,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:59:48,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:59:48,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:59:48,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:59:48,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:59:48,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:59:48,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:59:48,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:59:48,211 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:59:48,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:59:48,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:59:48,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:59:48,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:59:48,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2022-04-18 18:59:48,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:59:48,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:59:48,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:59:48,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:59:48,404 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:59:48,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_twice_3t.i [2022-04-18 18:59:48,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9c43e7a8e/c7328bd9dd78442abfbc2c7eac24801c/FLAG33ef6d9bc [2022-04-18 18:59:48,871 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:59:48,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/one_time_barrier_twice_3t.i [2022-04-18 18:59:48,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9c43e7a8e/c7328bd9dd78442abfbc2c7eac24801c/FLAG33ef6d9bc [2022-04-18 18:59:48,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9c43e7a8e/c7328bd9dd78442abfbc2c7eac24801c [2022-04-18 18:59:48,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:59:48,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:59:48,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:59:48,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:59:48,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:59:48,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:59:48" (1/1) ... [2022-04-18 18:59:48,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c579a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:48, skipping insertion in model container [2022-04-18 18:59:48,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:59:48" (1/1) ... [2022-04-18 18:59:48,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:59:48,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:59:49,081 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:59:49,202 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-divine/one_time_barrier_twice_3t.i[30448,30461] [2022-04-18 18:59:49,226 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-divine/one_time_barrier_twice_3t.i[30811,30824] [2022-04-18 18:59:49,242 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-divine/one_time_barrier_twice_3t.i[31483,31496] [2022-04-18 18:59:49,244 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-divine/one_time_barrier_twice_3t.i[31534,31547] [2022-04-18 18:59:49,248 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-divine/one_time_barrier_twice_3t.i[31683,31696] [2022-04-18 18:59:49,249 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-divine/one_time_barrier_twice_3t.i[31760,31773] [2022-04-18 18:59:49,251 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-divine/one_time_barrier_twice_3t.i[31807,31820] [2022-04-18 18:59:49,254 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-divine/one_time_barrier_twice_3t.i[31916,31929] [2022-04-18 18:59:49,256 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-divine/one_time_barrier_twice_3t.i[32035,32048] [2022-04-18 18:59:49,258 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-divine/one_time_barrier_twice_3t.i[32083,32096] [2022-04-18 18:59:49,259 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-divine/one_time_barrier_twice_3t.i[32160,32173] [2022-04-18 18:59:49,260 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-divine/one_time_barrier_twice_3t.i[32286,32299] [2022-04-18 18:59:49,265 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-divine/one_time_barrier_twice_3t.i[32897,32910] [2022-04-18 18:59:49,271 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-divine/one_time_barrier_twice_3t.i[32974,32987] [2022-04-18 18:59:49,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:59:49,276 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:59:49,284 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:59:49,305 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-divine/one_time_barrier_twice_3t.i[30448,30461] [2022-04-18 18:59:49,307 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-divine/one_time_barrier_twice_3t.i[30811,30824] [2022-04-18 18:59:49,311 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-divine/one_time_barrier_twice_3t.i[31483,31496] [2022-04-18 18:59:49,311 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-divine/one_time_barrier_twice_3t.i[31534,31547] [2022-04-18 18:59:49,312 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-divine/one_time_barrier_twice_3t.i[31683,31696] [2022-04-18 18:59:49,313 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-divine/one_time_barrier_twice_3t.i[31760,31773] [2022-04-18 18:59:49,313 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-divine/one_time_barrier_twice_3t.i[31807,31820] [2022-04-18 18:59:49,314 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-divine/one_time_barrier_twice_3t.i[31916,31929] [2022-04-18 18:59:49,316 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-divine/one_time_barrier_twice_3t.i[32035,32048] [2022-04-18 18:59:49,316 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-divine/one_time_barrier_twice_3t.i[32083,32096] [2022-04-18 18:59:49,317 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-divine/one_time_barrier_twice_3t.i[32160,32173] [2022-04-18 18:59:49,318 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-divine/one_time_barrier_twice_3t.i[32286,32299] [2022-04-18 18:59:49,323 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-divine/one_time_barrier_twice_3t.i[32897,32910] [2022-04-18 18:59:49,324 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-divine/one_time_barrier_twice_3t.i[32974,32987] [2022-04-18 18:59:49,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:59:49,345 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:59:49,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49 WrapperNode [2022-04-18 18:59:49,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:59:49,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:59:49,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:59:49,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:59:49,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,423 INFO L137 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 810 [2022-04-18 18:59:49,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:59:49,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:59:49,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:59:49,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:59:49,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:59:49,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:59:49,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:59:49,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:59:49,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (1/1) ... [2022-04-18 18:59:49,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:59:49,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:59:49,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:59:49,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:59:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:59:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:59:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:59:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-04-18 18:59:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-04-18 18:59:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:59:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:59:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:59:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:59:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:59:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:59:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:59:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:59:49,597 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:59:49,700 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:59:49,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:59:50,428 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:59:50,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:59:50,439 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-04-18 18:59:50,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:59:50 BoogieIcfgContainer [2022-04-18 18:59:50,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:59:50,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:59:50,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:59:50,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:59:50,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:59:48" (1/3) ... [2022-04-18 18:59:50,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db14e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:59:50, skipping insertion in model container [2022-04-18 18:59:50,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:49" (2/3) ... [2022-04-18 18:59:50,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db14e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:59:50, skipping insertion in model container [2022-04-18 18:59:50,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:59:50" (3/3) ... [2022-04-18 18:59:50,448 INFO L111 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2022-04-18 18:59:50,451 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:59:50,451 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:59:50,451 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-04-18 18:59:50,451 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:59:50,543 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:59:50,587 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:59:50,591 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 18:59:50,592 INFO L341 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2022-04-18 18:59:50,610 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:59:50,617 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 873 places, 933 transitions, 1874 flow [2022-04-18 18:59:50,620 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 873 places, 933 transitions, 1874 flow [2022-04-18 18:59:50,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 873 places, 933 transitions, 1874 flow [2022-04-18 18:59:51,012 INFO L129 PetriNetUnfolder]: 95/1357 cut-off events. [2022-04-18 18:59:51,012 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:59:51,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 1357 events. 95/1357 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4537 event pairs, 0 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 794. Up to 4 conditions per place. [2022-04-18 18:59:51,158 INFO L116 LiptonReduction]: Number of co-enabled transitions 313900 [2022-04-18 19:00:19,319 WARN L232 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 132 DAG size of output: 123 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:00:29,052 WARN L232 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 141 DAG size of output: 130 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:31,180 WARN L232 SmtUtils]: Spent 49.02s on a formula simplification. DAG size of input: 176 DAG size of output: 174 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:45,684 WARN L232 SmtUtils]: Spent 14.50s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:02:45,425 WARN L232 SmtUtils]: Spent 59.74s on a formula simplification. DAG size of input: 182 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:03:02,204 WARN L232 SmtUtils]: Spent 16.78s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:03:34,655 WARN L232 SmtUtils]: Spent 31.65s on a formula simplification. DAG size of input: 172 DAG size of output: 171 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:03:49,526 WARN L232 SmtUtils]: Spent 14.87s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:27,958 WARN L232 SmtUtils]: Spent 38.43s on a formula simplification. DAG size of input: 181 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:45,938 WARN L232 SmtUtils]: Spent 17.98s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:54,980 INFO L131 LiptonReduction]: Checked pairs total: 5571286 [2022-04-18 19:04:54,980 INFO L133 LiptonReduction]: Total number of compositions: 718 [2022-04-18 19:04:54,986 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 437 places, 471 transitions, 950 flow [2022-04-18 19:04:55,691 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45276 states, 43832 states have (on average 2.2217557948530753) internal successors, (97384), 45275 states have internal predecessors, (97384), 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 19:04:55,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 45276 states, 43832 states have (on average 2.2217557948530753) internal successors, (97384), 45275 states have internal predecessors, (97384), 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 19:04:55,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-04-18 19:04:55,746 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:55,746 INFO L499 BasicCegarLoop]: trace histogram [1, 1] [2022-04-18 19:04:55,747 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-04-18 19:04:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash 101903, now seen corresponding path program 1 times [2022-04-18 19:04:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:55,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788579707] [2022-04-18 19:04:55,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:55,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:55,900 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 19:04:55,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:55,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788579707] [2022-04-18 19:04:55,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788579707] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:55,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:55,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:04:55,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789100864] [2022-04-18 19:04:55,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:55,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:04:55,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:04:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:04:55,963 INFO L87 Difference]: Start difference. First operand has 45276 states, 43832 states have (on average 2.2217557948530753) internal successors, (97384), 45275 states have internal predecessors, (97384), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 19:04:56,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:56,756 INFO L93 Difference]: Finished difference Result 45269 states and 93503 transitions. [2022-04-18 19:04:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:04:56,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-04-18 19:04:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:57,078 INFO L225 Difference]: With dead ends: 45269 [2022-04-18 19:04:57,079 INFO L226 Difference]: Without dead ends: 45267 [2022-04-18 19:04:57,095 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 19:04:57,098 INFO L913 BasicCegarLoop]: 302 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:57,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 19:04:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45267 states. [2022-04-18 19:04:58,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45267 to 45267. [2022-04-18 19:04:58,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45267 states, 43832 states have (on average 2.133144734440591) internal successors, (93500), 45266 states have internal predecessors, (93500), 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 19:04:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45267 states to 45267 states and 93500 transitions. [2022-04-18 19:04:58,946 INFO L78 Accepts]: Start accepts. Automaton has 45267 states and 93500 transitions. Word has length 2 [2022-04-18 19:04:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:58,946 INFO L478 AbstractCegarLoop]: Abstraction has 45267 states and 93500 transitions. [2022-04-18 19:04:58,947 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 19:04:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 45267 states and 93500 transitions. [2022-04-18 19:04:58,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 19:04:58,949 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:58,949 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-04-18 19:04:58,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:04:58,950 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-04-18 19:04:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash -337729094, now seen corresponding path program 1 times [2022-04-18 19:04:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:58,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60957947] [2022-04-18 19:04:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:58,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:04:59,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:59,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60957947] [2022-04-18 19:04:59,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60957947] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:59,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:59,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:04:59,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739198805] [2022-04-18 19:04:59,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:59,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:04:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:04:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:04:59,054 INFO L87 Difference]: Start difference. First operand 45267 states and 93500 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 19:05:00,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:00,100 INFO L93 Difference]: Finished difference Result 45268 states and 93501 transitions. [2022-04-18 19:05:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:05:00,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 7 [2022-04-18 19:05:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:00,207 INFO L225 Difference]: With dead ends: 45268 [2022-04-18 19:05:00,207 INFO L226 Difference]: Without dead ends: 45268 [2022-04-18 19:05:00,208 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 19:05:00,209 INFO L913 BasicCegarLoop]: 302 mSDtfsCounter, 0 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:00,209 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:05:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45268 states. [2022-04-18 19:05:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45268 to 45268. [2022-04-18 19:05:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45268 states, 43833 states have (on average 2.133118883033331) internal successors, (93501), 45267 states have internal predecessors, (93501), 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 19:05:01,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45268 states to 45268 states and 93501 transitions. [2022-04-18 19:05:01,156 INFO L78 Accepts]: Start accepts. Automaton has 45268 states and 93501 transitions. Word has length 7 [2022-04-18 19:05:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:01,157 INFO L478 AbstractCegarLoop]: Abstraction has 45268 states and 93501 transitions. [2022-04-18 19:05:01,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 19:05:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 45268 states and 93501 transitions. [2022-04-18 19:05:01,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 19:05:01,158 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:01,158 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:01,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:05:01,162 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-04-18 19:05:01,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:01,162 INFO L85 PathProgramCache]: Analyzing trace with hash 100284441, now seen corresponding path program 1 times [2022-04-18 19:05:01,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:01,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281350072] [2022-04-18 19:05:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:01,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:05:01,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:01,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281350072] [2022-04-18 19:05:01,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281350072] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 19:05:01,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812318373] [2022-04-18 19:05:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:01,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:05:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:05:01,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 19:05:01,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 19:05:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:01,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 19:05:01,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:05:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:05:01,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 19:05:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:05:01,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812318373] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 19:05:01,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1322454529] [2022-04-18 19:05:01,454 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 19:05:01,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 19:05:01,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-04-18 19:05:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296249927] [2022-04-18 19:05:01,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 19:05:01,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 19:05:01,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:01,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 19:05:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 19:05:01,469 INFO L87 Difference]: Start difference. First operand 45268 states and 93501 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 19:05:02,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:02,989 INFO L93 Difference]: Finished difference Result 45270 states and 93503 transitions. [2022-04-18 19:05:02,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 19:05:02,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 8 [2022-04-18 19:05:02,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:03,073 INFO L225 Difference]: With dead ends: 45270 [2022-04-18 19:05:03,074 INFO L226 Difference]: Without dead ends: 45270 [2022-04-18 19:05:03,074 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 19:05:03,075 INFO L913 BasicCegarLoop]: 302 mSDtfsCounter, 0 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:03,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 906 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:05:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45270 states. [2022-04-18 19:05:03,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45270 to 45270. [2022-04-18 19:05:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45270 states, 43835 states have (on average 2.1330671837572717) internal successors, (93503), 45269 states have internal predecessors, (93503), 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 19:05:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45270 states to 45270 states and 93503 transitions. [2022-04-18 19:05:04,009 INFO L78 Accepts]: Start accepts. Automaton has 45270 states and 93503 transitions. Word has length 8 [2022-04-18 19:05:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:04,009 INFO L478 AbstractCegarLoop]: Abstraction has 45270 states and 93503 transitions. [2022-04-18 19:05:04,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 19:05:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 45270 states and 93503 transitions. [2022-04-18 19:05:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:05:04,010 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:04,010 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2022-04-18 19:05:04,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 19:05:04,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:05:04,223 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-04-18 19:05:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash 818014265, now seen corresponding path program 2 times [2022-04-18 19:05:04,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:04,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345656118] [2022-04-18 19:05:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:05:04,268 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:05:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:05:04,317 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:05:04,319 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:05:04,320 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (112 of 113 remaining) [2022-04-18 19:05:04,321 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (111 of 113 remaining) [2022-04-18 19:05:04,321 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (110 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (109 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (108 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (107 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (106 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (105 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (104 of 113 remaining) [2022-04-18 19:05:04,322 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (103 of 113 remaining) [2022-04-18 19:05:04,323 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (102 of 113 remaining) [2022-04-18 19:05:04,323 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (101 of 113 remaining) [2022-04-18 19:05:04,323 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (100 of 113 remaining) [2022-04-18 19:05:04,323 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (99 of 113 remaining) [2022-04-18 19:05:04,323 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (98 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (97 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (96 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (95 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (94 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (93 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (92 of 113 remaining) [2022-04-18 19:05:04,324 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (91 of 113 remaining) [2022-04-18 19:05:04,325 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (90 of 113 remaining) [2022-04-18 19:05:04,325 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (89 of 113 remaining) [2022-04-18 19:05:04,325 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (88 of 113 remaining) [2022-04-18 19:05:04,325 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (87 of 113 remaining) [2022-04-18 19:05:04,326 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (86 of 113 remaining) [2022-04-18 19:05:04,326 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (85 of 113 remaining) [2022-04-18 19:05:04,326 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (84 of 113 remaining) [2022-04-18 19:05:04,326 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (83 of 113 remaining) [2022-04-18 19:05:04,326 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (82 of 113 remaining) [2022-04-18 19:05:04,327 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (81 of 113 remaining) [2022-04-18 19:05:04,327 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (80 of 113 remaining) [2022-04-18 19:05:04,327 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (79 of 113 remaining) [2022-04-18 19:05:04,327 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (78 of 113 remaining) [2022-04-18 19:05:04,327 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (77 of 113 remaining) [2022-04-18 19:05:04,327 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (76 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (75 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (74 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (73 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (72 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (71 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE (70 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (69 of 113 remaining) [2022-04-18 19:05:04,328 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (68 of 113 remaining) [2022-04-18 19:05:04,329 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (67 of 113 remaining) [2022-04-18 19:05:04,329 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (66 of 113 remaining) [2022-04-18 19:05:04,329 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (65 of 113 remaining) [2022-04-18 19:05:04,329 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (64 of 113 remaining) [2022-04-18 19:05:04,329 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (63 of 113 remaining) [2022-04-18 19:05:04,329 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (62 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (61 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (60 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (59 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (58 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (57 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (56 of 113 remaining) [2022-04-18 19:05:04,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (55 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (54 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (53 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (52 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (51 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (50 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (49 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (48 of 113 remaining) [2022-04-18 19:05:04,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (47 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (46 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (45 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (44 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (43 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (42 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (41 of 113 remaining) [2022-04-18 19:05:04,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (40 of 113 remaining) [2022-04-18 19:05:04,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (39 of 113 remaining) [2022-04-18 19:05:04,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (38 of 113 remaining) [2022-04-18 19:05:04,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (37 of 113 remaining) [2022-04-18 19:05:04,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (36 of 113 remaining) [2022-04-18 19:05:04,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (35 of 113 remaining) [2022-04-18 19:05:04,335 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (34 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (33 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (32 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (31 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (30 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (29 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (28 of 113 remaining) [2022-04-18 19:05:04,336 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (27 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (26 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (25 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (24 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (23 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (22 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (21 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (20 of 113 remaining) [2022-04-18 19:05:04,337 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (19 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (18 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (17 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (16 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (15 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (14 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (13 of 113 remaining) [2022-04-18 19:05:04,338 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (12 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (11 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (10 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (9 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (8 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (7 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (6 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (5 of 113 remaining) [2022-04-18 19:05:04,339 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (4 of 113 remaining) [2022-04-18 19:05:04,340 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (3 of 113 remaining) [2022-04-18 19:05:04,340 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (2 of 113 remaining) [2022-04-18 19:05:04,341 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (1 of 113 remaining) [2022-04-18 19:05:04,341 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (0 of 113 remaining) [2022-04-18 19:05:04,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:05:04,342 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-04-18 19:05:04,343 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:05:04,343 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:05:04,404 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 19:05:04,406 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:05:04,409 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 19:05:04,409 INFO L341 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-04-18 19:05:04,414 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:05:04,414 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1215 places, 1300 transitions, 2618 flow [2022-04-18 19:05:04,415 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 1215 places, 1300 transitions, 2618 flow [2022-04-18 19:05:04,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1215 places, 1300 transitions, 2618 flow [2022-04-18 19:05:05,192 INFO L129 PetriNetUnfolder]: 160/2209 cut-off events. [2022-04-18 19:05:05,193 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 19:05:05,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2223 conditions, 2209 events. 160/2209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 10246 event pairs, 0 based on Foata normal form. 0/1856 useless extension candidates. Maximal degree in co-relation 1359. Up to 8 conditions per place. [2022-04-18 19:05:05,472 INFO L116 LiptonReduction]: Number of co-enabled transitions 902280 [2022-04-18 19:07:05,099 WARN L232 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 109 DAG size of output: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:11,706 WARN L232 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 109 DAG size of output: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:46,446 WARN L232 SmtUtils]: Spent 33.33s on a formula simplification. DAG size of input: 162 DAG size of output: 160 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:56,849 WARN L232 SmtUtils]: Spent 10.40s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:08:34,297 WARN L232 SmtUtils]: Spent 37.45s on a formula simplification. DAG size of input: 165 DAG size of output: 163 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:08:45,745 WARN L232 SmtUtils]: Spent 11.45s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:09:47,621 WARN L232 SmtUtils]: Spent 59.22s on a formula simplification. DAG size of input: 187 DAG size of output: 185 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:10:05,760 WARN L232 SmtUtils]: Spent 18.14s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:11:13,351 WARN L232 SmtUtils]: Spent 1.13m on a formula simplification. DAG size of input: 196 DAG size of output: 194 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:11:32,604 WARN L232 SmtUtils]: Spent 19.25s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:11:38,391 INFO L131 LiptonReduction]: Checked pairs total: 14914495 [2022-04-18 19:11:38,392 INFO L133 LiptonReduction]: Total number of compositions: 908 [2022-04-18 19:11:38,393 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 645 places, 692 transitions, 1402 flow