./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba --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 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:30:05,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:30:05,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:30:05,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:30:05,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:30:05,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:30:05,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:30:05,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:30:05,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:30:05,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:30:05,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:30:05,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:30:05,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:30:05,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:30:05,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:30:05,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:30:05,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:30:05,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:30:05,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:30:05,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:30:05,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:30:05,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:30:05,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:30:05,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:30:05,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:30:05,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:30:05,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:30:05,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:30:05,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:30:05,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:30:05,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:30:05,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:30:05,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:30:05,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:30:05,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:30:05,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:30:05,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:30:05,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:30:05,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:30:05,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:30:05,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:30:05,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 02:30:05,274 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:30:05,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:30:05,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:30:05,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:30:05,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:30:05,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:30:05,276 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:30:05,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:30:05,276 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:30:05,277 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:30:05,277 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:30:05,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:30:05,277 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:30:05,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:30:05,277 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:30:05,278 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:30:05,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:30:05,278 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:30:05,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:30:05,279 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:30:05,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:30:05,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:30:05,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:30:05,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:30:05,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:30:05,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:30:05,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:30:05,282 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 02:30:05,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:30:05,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:30:05,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:30:05,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:30:05,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:30:05,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:30:05,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:05,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:30:05,285 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:30:05,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:30:05,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:30:05,285 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:30:05,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:30:05,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:30:05,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:30:05,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2022-11-22 02:30:05,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:30:05,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:30:05,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:30:05,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:30:05,587 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:30:05,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-races/race-1_2b-join.i [2022-11-22 02:30:08,771 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:30:09,146 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:30:09,146 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2022-11-22 02:30:09,165 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/data/41dd6fb61/7b72bcacb16943d3a8dbc1bc323af77a/FLAG983c22eb6 [2022-11-22 02:30:09,180 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/data/41dd6fb61/7b72bcacb16943d3a8dbc1bc323af77a [2022-11-22 02:30:09,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:30:09,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:30:09,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:09,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:30:09,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:30:09,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:09" (1/1) ... [2022-11-22 02:30:09,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2035a354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:09, skipping insertion in model container [2022-11-22 02:30:09,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:30:09" (1/1) ... [2022-11-22 02:30:09,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:30:09,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:30:10,062 WARN L237 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_095a13a0-466f-435f-bb63-df075eacf94f/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2022-11-22 02:30:10,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:10,104 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:30:10,152 WARN L237 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_095a13a0-466f-435f-bb63-df075eacf94f/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2022-11-22 02:30:10,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:30:10,366 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:30:10,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10 WrapperNode [2022-11-22 02:30:10,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:30:10,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:10,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:30:10,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:30:10,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,478 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2022-11-22 02:30:10,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:30:10,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:30:10,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:30:10,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:30:10,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:30:10,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:30:10,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:30:10,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:30:10,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (1/1) ... [2022-11-22 02:30:10,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:30:10,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:30:10,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:30:10,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:30:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:30:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-22 02:30:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-22 02:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:30:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:30:10,640 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:30:11,017 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:30:11,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:30:11,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:30:11,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:30:11,278 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:30:11,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:11 BoogieIcfgContainer [2022-11-22 02:30:11,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:30:11,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:30:11,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:30:11,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:30:11,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:30:09" (1/3) ... [2022-11-22 02:30:11,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6959f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:11, skipping insertion in model container [2022-11-22 02:30:11,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:30:10" (2/3) ... [2022-11-22 02:30:11,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d6959f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:30:11, skipping insertion in model container [2022-11-22 02:30:11,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:11" (3/3) ... [2022-11-22 02:30:11,290 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2022-11-22 02:30:11,302 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:30:11,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:30:11,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 02:30:11,314 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:30:11,369 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:30:11,417 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:30:11,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 153 transitions, 314 flow [2022-11-22 02:30:11,433 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 153 transitions, 314 flow [2022-11-22 02:30:11,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 314 flow [2022-11-22 02:30:11,494 INFO L130 PetriNetUnfolder]: 5/173 cut-off events. [2022-11-22 02:30:11,494 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:30:11,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 173 events. 5/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 213 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place. [2022-11-22 02:30:11,500 INFO L119 LiptonReduction]: Number of co-enabled transitions 1008 [2022-11-22 02:30:17,307 INFO L134 LiptonReduction]: Checked pairs total: 2202 [2022-11-22 02:30:17,308 INFO L136 LiptonReduction]: Total number of compositions: 177 [2022-11-22 02:30:17,315 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 26 transitions, 60 flow [2022-11-22 02:30:17,330 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 67 states, 50 states have (on average 2.12) internal successors, (106), 66 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:17,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:30:17,354 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2539d518, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:30:17,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-22 02:30:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 50 states have (on average 2.12) internal successors, (106), 66 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:17,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:30:17,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:17,362 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:30:17,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-22 02:30:17,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash 552, now seen corresponding path program 1 times [2022-11-22 02:30:17,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:17,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901747036] [2022-11-22 02:30:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:17,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:17,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:17,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:17,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901747036] [2022-11-22 02:30:17,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901747036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:17,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:17,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:30:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677225940] [2022-11-22 02:30:17,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:17,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:30:17,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:17,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:30:17,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:30:17,661 INFO L87 Difference]: Start difference. First operand has 67 states, 50 states have (on average 2.12) internal successors, (106), 66 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:17,710 INFO L93 Difference]: Finished difference Result 55 states and 90 transitions. [2022-11-22 02:30:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:30:17,712 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 02:30:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:17,720 INFO L225 Difference]: With dead ends: 55 [2022-11-22 02:30:17,720 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 02:30:17,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:30:17,726 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:17,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:17,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 02:30:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-22 02:30:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 48 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 81 transitions. [2022-11-22 02:30:17,772 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 81 transitions. Word has length 1 [2022-11-22 02:30:17,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:17,773 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 81 transitions. [2022-11-22 02:30:17,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 81 transitions. [2022-11-22 02:30:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:30:17,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:17,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:30:17,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:30:17,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-22 02:30:17,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:17,778 INFO L85 PathProgramCache]: Analyzing trace with hash 525332289, now seen corresponding path program 1 times [2022-11-22 02:30:17,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:17,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165909107] [2022-11-22 02:30:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:17,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:17,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:17,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165909107] [2022-11-22 02:30:17,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165909107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:17,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:17,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:30:17,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065012248] [2022-11-22 02:30:17,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:17,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:17,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:17,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:17,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:17,951 INFO L87 Difference]: Start difference. First operand 49 states and 81 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:17,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:17,993 INFO L93 Difference]: Finished difference Result 50 states and 82 transitions. [2022-11-22 02:30:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:30:17,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:17,996 INFO L225 Difference]: With dead ends: 50 [2022-11-22 02:30:17,996 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 02:30:17,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:17,998 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:17,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:18,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 02:30:18,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-22 02:30:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 49 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 82 transitions. [2022-11-22 02:30:18,015 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 82 transitions. Word has length 5 [2022-11-22 02:30:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:18,015 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 82 transitions. [2022-11-22 02:30:18,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 82 transitions. [2022-11-22 02:30:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:30:18,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:18,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:30:18,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:30:18,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-22 02:30:18,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:18,017 INFO L85 PathProgramCache]: Analyzing trace with hash 525356446, now seen corresponding path program 1 times [2022-11-22 02:30:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:18,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871222671] [2022-11-22 02:30:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:18,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:18,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871222671] [2022-11-22 02:30:18,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871222671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:18,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:18,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:30:18,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087843880] [2022-11-22 02:30:18,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:18,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:18,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:18,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:18,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:18,131 INFO L87 Difference]: Start difference. First operand 50 states and 82 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:18,182 INFO L93 Difference]: Finished difference Result 52 states and 82 transitions. [2022-11-22 02:30:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:30:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:18,185 INFO L225 Difference]: With dead ends: 52 [2022-11-22 02:30:18,185 INFO L226 Difference]: Without dead ends: 43 [2022-11-22 02:30:18,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:18,189 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:18,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-22 02:30:18,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-22 02:30:18,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.763157894736842) internal successors, (67), 42 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 67 transitions. [2022-11-22 02:30:18,204 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 67 transitions. Word has length 5 [2022-11-22 02:30:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:18,204 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 67 transitions. [2022-11-22 02:30:18,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,206 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 67 transitions. [2022-11-22 02:30:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:30:18,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:18,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:18,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:30:18,208 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-22 02:30:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1961660724, now seen corresponding path program 1 times [2022-11-22 02:30:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:18,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036463095] [2022-11-22 02:30:18,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:18,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:30:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:30:18,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:30:18,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036463095] [2022-11-22 02:30:18,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036463095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:30:18,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:30:18,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:30:18,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610164848] [2022-11-22 02:30:18,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:30:18,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:30:18,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:30:18,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:30:18,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:18,291 INFO L87 Difference]: Start difference. First operand 43 states and 67 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:30:18,326 INFO L93 Difference]: Finished difference Result 40 states and 59 transitions. [2022-11-22 02:30:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:30:18,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 02:30:18,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:30:18,328 INFO L225 Difference]: With dead ends: 40 [2022-11-22 02:30:18,328 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 02:30:18,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:30:18,329 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:30:18,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:30:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 02:30:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-22 02:30:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2022-11-22 02:30:18,333 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 7 [2022-11-22 02:30:18,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:30:18,333 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-22 02:30:18,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:30:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2022-11-22 02:30:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:30:18,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:30:18,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:30:18,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:30:18,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-11-22 02:30:18,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:30:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1961576967, now seen corresponding path program 1 times [2022-11-22 02:30:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:30:18,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11509283] [2022-11-22 02:30:18,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:30:18,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:30:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:30:18,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:30:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:30:18,394 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:30:18,394 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:30:18,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-22 02:30:18,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-22 02:30:18,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-22 02:30:18,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-22 02:30:18,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-22 02:30:18,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-11-22 02:30:18,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-11-22 02:30:18,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-22 02:30:18,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-22 02:30:18,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-22 02:30:18,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-11-22 02:30:18,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-11-22 02:30:18,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:30:18,401 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 02:30:18,407 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:30:18,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:30:18,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:30:18 BasicIcfg [2022-11-22 02:30:18,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:30:18,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:30:18,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:30:18,428 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:30:18,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:30:11" (3/4) ... [2022-11-22 02:30:18,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:30:18,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:30:18,432 INFO L158 Benchmark]: Toolchain (without parser) took 9248.22ms. Allocated memory was 199.2MB in the beginning and 243.3MB in the end (delta: 44.0MB). Free memory was 150.6MB in the beginning and 181.9MB in the end (delta: -31.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-11-22 02:30:18,433 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:18,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1182.39ms. Allocated memory is still 199.2MB. Free memory was 150.6MB in the beginning and 157.9MB in the end (delta: -7.3MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2022-11-22 02:30:18,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.48ms. Allocated memory is still 199.2MB. Free memory was 157.9MB in the beginning and 154.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:18,433 INFO L158 Benchmark]: Boogie Preprocessor took 55.51ms. Allocated memory is still 199.2MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:30:18,434 INFO L158 Benchmark]: RCFGBuilder took 729.59ms. Allocated memory is still 199.2MB. Free memory was 152.7MB in the beginning and 130.6MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:30:18,434 INFO L158 Benchmark]: TraceAbstraction took 7144.50ms. Allocated memory was 199.2MB in the beginning and 243.3MB in the end (delta: 44.0MB). Free memory was 129.6MB in the beginning and 182.9MB in the end (delta: -53.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:18,434 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 243.3MB. Free memory was 182.9MB in the beginning and 181.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:30:18,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1182.39ms. Allocated memory is still 199.2MB. Free memory was 150.6MB in the beginning and 157.9MB in the end (delta: -7.3MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.48ms. Allocated memory is still 199.2MB. Free memory was 157.9MB in the beginning and 154.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.51ms. Allocated memory is still 199.2MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 729.59ms. Allocated memory is still 199.2MB. Free memory was 152.7MB in the beginning and 130.6MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7144.50ms. Allocated memory was 199.2MB in the beginning and 243.3MB in the end (delta: 44.0MB). Free memory was 129.6MB in the beginning and 182.9MB in the end (delta: -53.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 243.3MB. Free memory was 182.9MB in the beginning and 181.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 151 PlacesBefore, 28 PlacesAfterwards, 153 TransitionsBefore, 26 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 8 FixpointIterations, 108 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 177 TotalNumberOfCompositions, 2202 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1181, independent: 1006, independent conditional: 0, independent unconditional: 1006, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 719, independent: 681, independent conditional: 0, independent unconditional: 681, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 719, independent: 679, independent conditional: 0, independent unconditional: 679, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1181, independent: 325, independent conditional: 0, independent unconditional: 325, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 719, unknown conditional: 0, unknown unconditional: 719] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1709]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, pdev = 2=1150, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 6=1153, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 2=1150, pdev = 6=1153, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 6 [1699] and C: pdev = 2 [1709] - UnprovableResult [Line: 1699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 162 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:30:18,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_095a13a0-466f-435f-bb63-df075eacf94f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE