./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF --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 c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:40:57,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:40:57,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:40:57,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:40:57,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:40:57,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:40:57,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:40:57,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:40:57,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:40:57,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:40:57,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:40:57,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:40:57,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:40:57,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:40:57,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:40:57,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:40:57,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:40:57,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:40:57,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:40:57,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:40:57,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:40:57,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:40:57,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:40:57,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:40:57,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:40:57,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:40:57,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:40:57,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:40:57,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:40:57,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:40:57,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:40:57,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:40:57,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:40:57,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:40:57,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:40:57,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:40:57,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:40:57,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:40:57,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:40:57,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:40:57,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:40:57,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-12 22:40:57,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:40:57,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:40:57,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:40:57,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:40:57,645 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:40:57,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:40:57,646 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:40:57,646 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:40:57,646 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:40:57,646 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:40:57,647 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:40:57,648 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:40:57,648 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:40:57,648 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:40:57,649 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:40:57,649 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:40:57,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:40:57,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:40:57,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:40:57,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:40:57,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:40:57,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:40:57,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:40:57,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:40:57,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:40:57,651 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 22:40:57,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:40:57,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:40:57,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:40:57,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:40:57,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:40:57,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:40:57,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:40:57,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:57,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:40:57,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:40:57,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:40:57,656 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:40:57,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:40:57,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:40:57,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:40:57,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:40:57,657 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b [2021-11-12 22:40:57,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:40:57,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:40:57,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:40:57,997 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:40:57,997 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:40:57,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-races/race-1_3b-join.i [2021-11-12 22:40:58,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/26364d51b/16e9f0d467fc4f7b893dfa50d39f24d3/FLAG18a7e5d73 [2021-11-12 22:40:58,689 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:40:58,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2021-11-12 22:40:58,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/26364d51b/16e9f0d467fc4f7b893dfa50d39f24d3/FLAG18a7e5d73 [2021-11-12 22:40:58,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/26364d51b/16e9f0d467fc4f7b893dfa50d39f24d3 [2021-11-12 22:40:58,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:40:58,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:40:58,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:58,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:40:58,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:40:58,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:58" (1/1) ... [2021-11-12 22:40:58,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70303ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:58, skipping insertion in model container [2021-11-12 22:40:58,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:58" (1/1) ... [2021-11-12 22:40:58,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:40:58,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:40:59,766 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2021-11-12 22:40:59,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:40:59,811 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:40:59,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2021-11-12 22:40:59,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:00,053 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:00,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00 WrapperNode [2021-11-12 22:41:00,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:00,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:00,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:00,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:00,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:00,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:00,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:00,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:00,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:00,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:00,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:00,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:00,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (1/1) ... [2021-11-12 22:41:00,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:00,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:00,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:00,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:41:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:41:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 22:41:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:41:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:00,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:41:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:41:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:41:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:41:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:41:00,306 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:41:01,031 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:41:01,033 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:41:01,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:01 BoogieIcfgContainer [2021-11-12 22:41:01,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:41:01,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:41:01,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:41:01,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:41:01,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:40:58" (1/3) ... [2021-11-12 22:41:01,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27944f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:01, skipping insertion in model container [2021-11-12 22:41:01,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:00" (2/3) ... [2021-11-12 22:41:01,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27944f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:01, skipping insertion in model container [2021-11-12 22:41:01,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:01" (3/3) ... [2021-11-12 22:41:01,052 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2021-11-12 22:41:01,059 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:41:01,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:41:01,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-12 22:41:01,059 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:41:01,118 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,118 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,118 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,118 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,119 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,119 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,119 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,120 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,120 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,120 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,121 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,121 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,121 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,121 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,122 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,123 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,124 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,124 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,124 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,125 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,125 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,125 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,126 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,134 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,135 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,135 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,135 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,135 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:01,143 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 22:41:01,209 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:41:01,229 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:41:01,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-12 22:41:01,263 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:41:01,291 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 151 transitions, 310 flow [2021-11-12 22:41:01,296 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 151 transitions, 310 flow [2021-11-12 22:41:01,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 151 transitions, 310 flow [2021-11-12 22:41:01,371 INFO L129 PetriNetUnfolder]: 6/189 cut-off events. [2021-11-12 22:41:01,371 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 22:41:01,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 189 events. 6/189 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2021-11-12 22:41:01,380 INFO L116 LiptonReduction]: Number of co-enabled transitions 1008 [2021-11-12 22:41:09,496 INFO L131 LiptonReduction]: Checked pairs total: 2394 [2021-11-12 22:41:09,496 INFO L133 LiptonReduction]: Total number of compositions: 182 [2021-11-12 22:41:09,506 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 26 transitions, 60 flow [2021-11-12 22:41:09,519 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73 states, 54 states have (on average 2.074074074074074) internal successors, (112), 72 states have internal predecessors, (112), 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) [2021-11-12 22:41:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 54 states have (on average 2.074074074074074) internal successors, (112), 72 states have internal predecessors, (112), 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) [2021-11-12 22:41:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-12 22:41:09,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:09,527 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-12 22:41:09,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:09,533 INFO L85 PathProgramCache]: Analyzing trace with hash 544, now seen corresponding path program 1 times [2021-11-12 22:41:09,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:09,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021519636] [2021-11-12 22:41:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:09,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:09,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:09,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021519636] [2021-11-12 22:41:09,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021519636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:09,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:09,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-12 22:41:09,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212252449] [2021-11-12 22:41:09,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:09,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:41:09,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:41:09,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:41:09,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:09,849 INFO L87 Difference]: Start difference. First operand has 73 states, 54 states have (on average 2.074074074074074) internal successors, (112), 72 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:09,896 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2021-11-12 22:41:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:41:09,899 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-11-12 22:41:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:09,912 INFO L225 Difference]: With dead ends: 61 [2021-11-12 22:41:09,913 INFO L226 Difference]: Without dead ends: 57 [2021-11-12 22:41:09,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:09,922 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.97ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:09,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 12 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 28.97ms Time] [2021-11-12 22:41:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-12 22:41:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-12 22:41:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.836734693877551) internal successors, (90), 56 states have internal predecessors, (90), 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) [2021-11-12 22:41:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 90 transitions. [2021-11-12 22:41:09,985 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 90 transitions. Word has length 1 [2021-11-12 22:41:09,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:09,992 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 90 transitions. [2021-11-12 22:41:09,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2021-11-12 22:41:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-12 22:41:09,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:09,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-12 22:41:09,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:41:09,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash 16936039, now seen corresponding path program 1 times [2021-11-12 22:41:10,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:10,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001149622] [2021-11-12 22:41:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:10,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:10,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:10,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001149622] [2021-11-12 22:41:10,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001149622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:10,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:10,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:41:10,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223721872] [2021-11-12 22:41:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:10,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:41:10,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:41:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:41:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:10,196 INFO L87 Difference]: Start difference. First operand 57 states and 90 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:10,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:10,241 INFO L93 Difference]: Finished difference Result 51 states and 84 transitions. [2021-11-12 22:41:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:10,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-12 22:41:10,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:10,245 INFO L225 Difference]: With dead ends: 51 [2021-11-12 22:41:10,245 INFO L226 Difference]: Without dead ends: 50 [2021-11-12 22:41:10,247 INFO L932 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 [2021-11-12 22:41:10,249 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:10,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 21 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 34.00ms Time] [2021-11-12 22:41:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-12 22:41:10,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-12 22:41:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 49 states have internal predecessors, (83), 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) [2021-11-12 22:41:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2021-11-12 22:41:10,276 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 4 [2021-11-12 22:41:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:10,276 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2021-11-12 22:41:10,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2021-11-12 22:41:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:41:10,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:10,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:41:10,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:41:10,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:10,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:10,281 INFO L85 PathProgramCache]: Analyzing trace with hash 523353036, now seen corresponding path program 1 times [2021-11-12 22:41:10,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:10,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302296102] [2021-11-12 22:41:10,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:10,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:10,401 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:10,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302296102] [2021-11-12 22:41:10,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302296102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:10,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:10,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:41:10,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214350238] [2021-11-12 22:41:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:10,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:41:10,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:41:10,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:41:10,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:10,408 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:10,463 INFO L93 Difference]: Finished difference Result 52 states and 85 transitions. [2021-11-12 22:41:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-12 22:41:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:10,466 INFO L225 Difference]: With dead ends: 52 [2021-11-12 22:41:10,466 INFO L226 Difference]: Without dead ends: 46 [2021-11-12 22:41:10,467 INFO L932 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 [2021-11-12 22:41:10,471 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.80ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:10,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 33 Unknown, 0 Unchecked, 2.32ms Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 38.80ms Time] [2021-11-12 22:41:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-12 22:41:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-12 22:41:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.829268292682927) internal successors, (75), 45 states have internal predecessors, (75), 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) [2021-11-12 22:41:10,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 75 transitions. [2021-11-12 22:41:10,487 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 75 transitions. Word has length 5 [2021-11-12 22:41:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:10,487 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 75 transitions. [2021-11-12 22:41:10,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2021-11-12 22:41:10,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 22:41:10,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:10,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 22:41:10,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 22:41:10,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash -954394820, now seen corresponding path program 1 times [2021-11-12 22:41:10,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:10,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274732797] [2021-11-12 22:41:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:10,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:10,580 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:41:10,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274732797] [2021-11-12 22:41:10,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274732797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:10,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:10,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:41:10,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908497996] [2021-11-12 22:41:10,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:10,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:41:10,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:41:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:41:10,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:10,586 INFO L87 Difference]: Start difference. First operand 46 states and 75 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:10,624 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2021-11-12 22:41:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-12 22:41:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:10,633 INFO L225 Difference]: With dead ends: 43 [2021-11-12 22:41:10,633 INFO L226 Difference]: Without dead ends: 43 [2021-11-12 22:41:10,637 INFO L932 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 [2021-11-12 22:41:10,641 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.81ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:10,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 27 Unknown, 0 Unchecked, 1.48ms Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 31.81ms Time] [2021-11-12 22:41:10,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-12 22:41:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-12 22:41:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.7435897435897436) internal successors, (68), 42 states have internal predecessors, (68), 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) [2021-11-12 22:41:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 68 transitions. [2021-11-12 22:41:10,654 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 68 transitions. Word has length 6 [2021-11-12 22:41:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:10,654 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 68 transitions. [2021-11-12 22:41:10,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:10,655 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2021-11-12 22:41:10,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:41:10,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:10,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:10,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 22:41:10,657 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:10,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:10,658 INFO L85 PathProgramCache]: Analyzing trace with hash 565360716, now seen corresponding path program 1 times [2021-11-12 22:41:10,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:41:10,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458961431] [2021-11-12 22:41:10,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:10,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:41:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:41:10,731 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:41:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:41:10,789 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:41:10,790 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:41:10,791 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2021-11-12 22:41:10,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2021-11-12 22:41:10,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2021-11-12 22:41:10,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2021-11-12 22:41:10,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2021-11-12 22:41:10,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2021-11-12 22:41:10,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2021-11-12 22:41:10,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2021-11-12 22:41:10,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2021-11-12 22:41:10,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2021-11-12 22:41:10,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 12 remaining) [2021-11-12 22:41:10,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2021-11-12 22:41:10,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 22:41:10,798 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 22:41:10,804 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 22:41:10,804 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:41:10,827 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) 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) [2021-11-12 22:41:10,830 INFO L158 Benchmark]: Toolchain (without parser) took 11924.56ms. Allocated memory was 94.4MB in the beginning and 161.5MB in the end (delta: 67.1MB). Free memory was 72.0MB in the beginning and 69.6MB in the end (delta: 2.4MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2021-11-12 22:41:10,830 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 67.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:10,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1146.22ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 72.0MB in the beginning and 79.7MB in the end (delta: -7.8MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-11-12 22:41:10,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.15ms. Allocated memory is still 125.8MB. Free memory was 79.7MB in the beginning and 76.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:41:10,831 INFO L158 Benchmark]: Boogie Preprocessor took 57.85ms. Allocated memory is still 125.8MB. Free memory was 76.6MB in the beginning and 74.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:41:10,832 INFO L158 Benchmark]: RCFGBuilder took 838.82ms. Allocated memory is still 125.8MB. Free memory was 74.0MB in the beginning and 90.9MB in the end (delta: -16.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-12 22:41:10,832 INFO L158 Benchmark]: TraceAbstraction took 9790.15ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 90.9MB in the beginning and 69.6MB in the end (delta: 21.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2021-11-12 22:41:10,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 67.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1146.22ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 72.0MB in the beginning and 79.7MB in the end (delta: -7.8MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.15ms. Allocated memory is still 125.8MB. Free memory was 79.7MB in the beginning and 76.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.85ms. Allocated memory is still 125.8MB. Free memory was 76.6MB in the beginning and 74.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 838.82ms. Allocated memory is still 125.8MB. Free memory was 74.0MB in the beginning and 90.9MB in the end (delta: -16.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9790.15ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 90.9MB in the beginning and 69.6MB in the end (delta: 21.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 149 PlacesBefore, 28 PlacesAfterwards, 151 TransitionsBefore, 26 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 10 FixpointIterations, 116 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 182 TotalNumberOfCompositions, 2394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1289, positive: 1076, positive conditional: 0, positive unconditional: 1076, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 773, positive: 731, positive conditional: 0, positive unconditional: 731, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 773, positive: 715, positive conditional: 0, positive unconditional: 715, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1289, positive: 345, positive conditional: 0, positive unconditional: 345, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 773, unknown conditional: 0, unknown unconditional: 773] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:41:10,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF --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 c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:41:13,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:41:13,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:41:13,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:41:13,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:41:13,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:41:13,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:41:13,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:41:13,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:41:13,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:41:13,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:41:13,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:41:13,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:41:13,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:41:13,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:41:13,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:41:13,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:41:13,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:41:13,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:41:13,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:41:13,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:41:13,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:41:13,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:41:13,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:41:13,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:41:13,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:41:13,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:41:13,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:41:13,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:41:13,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:41:13,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:41:13,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:41:13,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:41:13,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:41:13,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:41:13,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:41:13,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:41:13,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:41:13,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:41:13,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:41:13,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:41:13,608 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-12 22:41:13,650 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:41:13,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:41:13,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:41:13,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:41:13,652 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:41:13,653 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:41:13,653 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:41:13,653 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:41:13,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:41:13,653 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:41:13,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:41:13,656 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:41:13,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:41:13,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:41:13,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:41:13,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:41:13,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:41:13,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:41:13,658 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 22:41:13,658 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:41:13,658 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:41:13,658 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:41:13,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:41:13,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:41:13,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:41:13,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:41:13,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:41:13,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:41:13,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:41:13,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:13,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:41:13,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:41:13,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:41:13,661 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:41:13,662 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:41:13,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:41:13,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:41:13,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:41:13,663 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c73b137d4d055d601e6891c370b9da4780621da8a7fc8a5ca4886c6b3b685d8b [2021-11-12 22:41:14,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:41:14,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:41:14,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:41:14,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:41:14,091 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:41:14,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-races/race-1_3b-join.i [2021-11-12 22:41:14,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/933fa5aa1/8cb4567cc5f04b4281ea9ec725895ea3/FLAG2ae5f525b [2021-11-12 22:41:14,820 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:41:14,820 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/sv-benchmarks/c/ldv-races/race-1_3b-join.i [2021-11-12 22:41:14,849 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/933fa5aa1/8cb4567cc5f04b4281ea9ec725895ea3/FLAG2ae5f525b [2021-11-12 22:41:15,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/data/933fa5aa1/8cb4567cc5f04b4281ea9ec725895ea3 [2021-11-12 22:41:15,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:41:15,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:41:15,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:15,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:41:15,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:41:15,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:15" (1/1) ... [2021-11-12 22:41:15,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719cef03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:15, skipping insertion in model container [2021-11-12 22:41:15,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:41:15" (1/1) ... [2021-11-12 22:41:15,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:41:15,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:41:16,033 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2021-11-12 22:41:16,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:16,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:41:16,131 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/sv-benchmarks/c/ldv-races/race-1_3b-join.i[76069,76082] [2021-11-12 22:41:16,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:41:16,279 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:41:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16 WrapperNode [2021-11-12 22:41:16,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:41:16,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:16,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:41:16,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:41:16,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:41:16,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:41:16,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:41:16,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:41:16,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:41:16,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:41:16,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:41:16,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:41:16,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (1/1) ... [2021-11-12 22:41:16,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:41:16,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:41:16,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:41:16,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:41:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:41:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:41:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:41:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 22:41:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:41:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:41:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:41:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:41:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:41:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:41:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:41:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:41:16,552 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:41:17,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:41:17,231 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:41:17,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:17 BoogieIcfgContainer [2021-11-12 22:41:17,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:41:17,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:41:17,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:41:17,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:41:17,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:41:15" (1/3) ... [2021-11-12 22:41:17,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0cb0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:17, skipping insertion in model container [2021-11-12 22:41:17,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:41:16" (2/3) ... [2021-11-12 22:41:17,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0cb0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:41:17, skipping insertion in model container [2021-11-12 22:41:17,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:41:17" (3/3) ... [2021-11-12 22:41:17,258 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3b-join.i [2021-11-12 22:41:17,263 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:41:17,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:41:17,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-12 22:41:17,264 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:41:17,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,292 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,293 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,293 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,293 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,296 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,297 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,301 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,301 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:41:17,306 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 22:41:17,348 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:41:17,355 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:41:17,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-12 22:41:17,371 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:41:17,384 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 150 transitions, 308 flow [2021-11-12 22:41:17,387 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 150 transitions, 308 flow [2021-11-12 22:41:17,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 150 transitions, 308 flow [2021-11-12 22:41:17,474 INFO L129 PetriNetUnfolder]: 6/187 cut-off events. [2021-11-12 22:41:17,475 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 22:41:17,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 187 events. 6/187 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 108. Up to 4 conditions per place. [2021-11-12 22:41:17,482 INFO L116 LiptonReduction]: Number of co-enabled transitions 984 [2021-11-12 22:41:33,394 INFO L131 LiptonReduction]: Checked pairs total: 2737 [2021-11-12 22:41:33,395 INFO L133 LiptonReduction]: Total number of compositions: 179 [2021-11-12 22:41:33,403 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 26 transitions, 60 flow [2021-11-12 22:41:33,415 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73 states, 54 states have (on average 2.074074074074074) internal successors, (112), 72 states have internal predecessors, (112), 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) [2021-11-12 22:41:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 54 states have (on average 2.074074074074074) internal successors, (112), 72 states have internal predecessors, (112), 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) [2021-11-12 22:41:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-12 22:41:33,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:33,423 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-12 22:41:33,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 550, now seen corresponding path program 1 times [2021-11-12 22:41:33,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:33,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348853055] [2021-11-12 22:41:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:33,444 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:33,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:33,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:33,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:41:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:33,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:41:33,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:33,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:33,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:33,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348853055] [2021-11-12 22:41:33,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348853055] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:33,604 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:33,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-11-12 22:41:33,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168557210] [2021-11-12 22:41:33,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:33,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:41:33,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:41:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:33,634 INFO L87 Difference]: Start difference. First operand has 73 states, 54 states have (on average 2.074074074074074) internal successors, (112), 72 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:33,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:33,733 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2021-11-12 22:41:33,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:41:33,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-11-12 22:41:33,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:33,744 INFO L225 Difference]: With dead ends: 61 [2021-11-12 22:41:33,744 INFO L226 Difference]: Without dead ends: 57 [2021-11-12 22:41:33,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:41:33,749 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:33,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 84.75ms Time] [2021-11-12 22:41:33,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-12 22:41:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-12 22:41:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.836734693877551) internal successors, (90), 56 states have internal predecessors, (90), 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) [2021-11-12 22:41:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 90 transitions. [2021-11-12 22:41:33,805 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 90 transitions. Word has length 1 [2021-11-12 22:41:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:33,805 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 90 transitions. [2021-11-12 22:41:33,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2021-11-12 22:41:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-12 22:41:33,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:33,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-12 22:41:33,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:41:34,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:34,007 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash 16910060, now seen corresponding path program 1 times [2021-11-12 22:41:34,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:34,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159395304] [2021-11-12 22:41:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:34,010 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:34,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:34,011 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:34,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:41:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:34,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:41:34,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:34,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:34,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:34,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159395304] [2021-11-12 22:41:34,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159395304] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:34,240 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:34,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 22:41:34,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742482199] [2021-11-12 22:41:34,242 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:34,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:41:34,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:34,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:41:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:41:34,246 INFO L87 Difference]: Start difference. First operand 57 states and 90 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:34,320 INFO L93 Difference]: Finished difference Result 51 states and 84 transitions. [2021-11-12 22:41:34,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:34,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-12 22:41:34,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:34,325 INFO L225 Difference]: With dead ends: 51 [2021-11-12 22:41:34,325 INFO L226 Difference]: Without dead ends: 50 [2021-11-12 22:41:34,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:41:34,327 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:34,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 19 Unknown, 0 Unchecked, 0.50ms Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 65.62ms Time] [2021-11-12 22:41:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-12 22:41:34,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-12 22:41:34,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 49 states have internal predecessors, (83), 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) [2021-11-12 22:41:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2021-11-12 22:41:34,348 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 4 [2021-11-12 22:41:34,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:34,348 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2021-11-12 22:41:34,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2021-11-12 22:41:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:41:34,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:34,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:41:34,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:34,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:34,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 521481130, now seen corresponding path program 1 times [2021-11-12 22:41:34,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:34,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862972923] [2021-11-12 22:41:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:34,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:34,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:34,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:34,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:41:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:34,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:41:34,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:34,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:34,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:34,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862972923] [2021-11-12 22:41:34,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862972923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:34,735 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:34,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:41:34,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459167305] [2021-11-12 22:41:34,736 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:34,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:41:34,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:41:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:34,737 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:34,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:34,806 INFO L93 Difference]: Finished difference Result 52 states and 85 transitions. [2021-11-12 22:41:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:34,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-12 22:41:34,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:34,808 INFO L225 Difference]: With dead ends: 52 [2021-11-12 22:41:34,808 INFO L226 Difference]: Without dead ends: 46 [2021-11-12 22:41:34,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:34,810 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.71ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:34,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 32 Unknown, 0 Unchecked, 0.62ms Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 63.71ms Time] [2021-11-12 22:41:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-12 22:41:34,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-12 22:41:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.829268292682927) internal successors, (75), 45 states have internal predecessors, (75), 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) [2021-11-12 22:41:34,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 75 transitions. [2021-11-12 22:41:34,818 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 75 transitions. Word has length 5 [2021-11-12 22:41:34,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:34,818 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 75 transitions. [2021-11-12 22:41:34,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:34,819 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2021-11-12 22:41:34,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 22:41:34,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:34,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 22:41:34,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:35,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:35,038 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:35,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:35,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1014539037, now seen corresponding path program 1 times [2021-11-12 22:41:35,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:35,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060297225] [2021-11-12 22:41:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:35,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:35,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:35,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:35,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:41:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:41:35,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:41:35,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:41:35,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:35,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:35,256 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:35,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060297225] [2021-11-12 22:41:35,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060297225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:35,257 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:35,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:41:35,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488211962] [2021-11-12 22:41:35,258 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:35,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:41:35,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:35,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:41:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:35,260 INFO L87 Difference]: Start difference. First operand 46 states and 75 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:41:35,330 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2021-11-12 22:41:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:41:35,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-12 22:41:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:41:35,332 INFO L225 Difference]: With dead ends: 43 [2021-11-12 22:41:35,332 INFO L226 Difference]: Without dead ends: 43 [2021-11-12 22:41:35,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:41:35,334 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.80ms IncrementalHoareTripleChecker+Time [2021-11-12 22:41:35,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 25 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 64.80ms Time] [2021-11-12 22:41:35,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-12 22:41:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-12 22:41:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.7435897435897436) internal successors, (68), 42 states have internal predecessors, (68), 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) [2021-11-12 22:41:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 68 transitions. [2021-11-12 22:41:35,345 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 68 transitions. Word has length 6 [2021-11-12 22:41:35,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:41:35,346 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 68 transitions. [2021-11-12 22:41:35,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:41:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2021-11-12 22:41:35,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:41:35,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:41:35,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:41:35,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:35,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:35,561 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2021-11-12 22:41:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:41:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash -13430836, now seen corresponding path program 1 times [2021-11-12 22:41:35,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:41:35,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014559177] [2021-11-12 22:41:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:41:35,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:41:35,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:41:35,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:41:35,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:41:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:41:35,713 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:41:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:41:35,852 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-12 22:41:35,852 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:41:35,853 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2021-11-12 22:41:35,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2021-11-12 22:41:35,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2021-11-12 22:41:35,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2021-11-12 22:41:35,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2021-11-12 22:41:35,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2021-11-12 22:41:35,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2021-11-12 22:41:35,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2021-11-12 22:41:35,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2021-11-12 22:41:35,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2021-11-12 22:41:35,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2021-11-12 22:41:35,857 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 12 remaining) [2021-11-12 22:41:35,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:41:36,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:41:36,059 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 22:41:36,063 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 22:41:36,063 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:41:36,076 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) 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) [2021-11-12 22:41:36,078 INFO L158 Benchmark]: Toolchain (without parser) took 21050.28ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 37.6MB in the beginning and 96.6MB in the end (delta: -59.0MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2021-11-12 22:41:36,079 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:41:36,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1250.67ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.4MB in the beginning and 39.4MB in the end (delta: -2.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2021-11-12 22:41:36,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.09ms. Allocated memory is still 81.8MB. Free memory was 39.4MB in the beginning and 57.6MB in the end (delta: -18.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-11-12 22:41:36,081 INFO L158 Benchmark]: Boogie Preprocessor took 52.30ms. Allocated memory is still 81.8MB. Free memory was 57.6MB in the beginning and 54.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:41:36,086 INFO L158 Benchmark]: RCFGBuilder took 814.34ms. Allocated memory is still 81.8MB. Free memory was 54.0MB in the beginning and 35.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-12 22:41:36,087 INFO L158 Benchmark]: TraceAbstraction took 18825.10ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 56.0MB in the beginning and 96.6MB in the end (delta: -40.6MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2021-11-12 22:41:36,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1250.67ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.4MB in the beginning and 39.4MB in the end (delta: -2.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.09ms. Allocated memory is still 81.8MB. Free memory was 39.4MB in the beginning and 57.6MB in the end (delta: -18.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.30ms. Allocated memory is still 81.8MB. Free memory was 57.6MB in the beginning and 54.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 814.34ms. Allocated memory is still 81.8MB. Free memory was 54.0MB in the beginning and 35.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 18825.10ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 56.0MB in the beginning and 96.6MB in the end (delta: -40.6MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0s, 148 PlacesBefore, 28 PlacesAfterwards, 150 TransitionsBefore, 26 TransitionsAfterwards, 984 CoEnabledTransitionPairs, 11 FixpointIterations, 111 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 179 TotalNumberOfCompositions, 2737 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1336, positive: 1100, positive conditional: 0, positive unconditional: 1100, negative: 236, negative conditional: 0, negative unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 720, positive: 680, positive conditional: 0, positive unconditional: 680, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 720, positive: 664, positive conditional: 0, positive unconditional: 664, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1336, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 196, negative conditional: 0, negative unconditional: 196, unknown: 720, unknown conditional: 0, unknown unconditional: 720] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:41:36,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c29c4caa-9171-428e-8c76-420eb355b6c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null