./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/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_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/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_8a28829e-c70d-4bec-9aef-65294f7ffd64/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 bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- 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 02:19:59,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:19:59,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:19:59,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:19:59,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:19:59,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:19:59,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:19:59,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:19:59,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:19:59,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:19:59,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:19:59,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:19:59,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:19:59,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:19:59,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:19:59,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:19:59,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:19:59,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:19:59,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:19:59,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:19:59,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:19:59,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:19:59,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:19:59,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:19:59,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:19:59,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:19:59,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:19:59,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:19:59,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:19:59,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:19:59,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:19:59,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:19:59,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:19:59,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:19:59,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:19:59,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:19:59,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:19:59,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:19:59,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:19:59,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:19:59,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:19:59,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 02:19:59,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:19:59,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:19:59,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:19:59,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:19:59,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:19:59,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:19:59,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:19:59,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:19:59,333 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:19:59,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:19:59,334 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:19:59,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:19:59,334 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:19:59,335 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:19:59,335 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:19:59,335 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:19:59,335 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:19:59,336 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:19:59,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:19:59,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:19:59,337 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:19:59,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:19:59,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:19:59,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:19:59,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:19:59,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:19:59,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:19:59,339 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 02:19:59,339 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:19:59,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:19:59,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:19:59,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:19:59,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:19:59,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:19:59,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:19:59,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:19:59,341 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:19:59,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:19:59,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:19:59,342 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:19:59,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:19:59,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:19:59,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:19:59,343 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_8a28829e-c70d-4bec-9aef-65294f7ffd64/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2022-11-22 02:19:59,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:19:59,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:19:59,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:19:59,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:19:59,701 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:19:59,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-22 02:20:02,838 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:20:03,108 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:20:03,108 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-22 02:20:03,139 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/data/747cc2c44/c3f47e8949794dd0bf446ab1d85b8c3b/FLAG84a9f28d4 [2022-11-22 02:20:03,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/data/747cc2c44/c3f47e8949794dd0bf446ab1d85b8c3b [2022-11-22 02:20:03,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:20:03,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:20:03,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:20:03,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:20:03,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:20:03,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:03" (1/1) ... [2022-11-22 02:20:03,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c27ee71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:03, skipping insertion in model container [2022-11-22 02:20:03,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:03" (1/1) ... [2022-11-22 02:20:03,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:20:03,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:20:03,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:20:03,900 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:20:03,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:20:04,061 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:20:04,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04 WrapperNode [2022-11-22 02:20:04,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:20:04,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:20:04,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:20:04,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:20:04,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,131 INFO L138 Inliner]: procedures = 370, calls = 29, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 226 [2022-11-22 02:20:04,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:20:04,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:20:04,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:20:04,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:20:04,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:20:04,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:20:04,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:20:04,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:20:04,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (1/1) ... [2022-11-22 02:20:04,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:20:04,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:20:04,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:20:04,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a28829e-c70d-4bec-9aef-65294f7ffd64/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:20:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:20:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:20:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:20:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:20:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:20:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:20:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:20:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:20:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:20:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:20:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:20:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:20:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:20:04,356 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 02:20:04,556 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:20:04,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:20:05,156 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:20:05,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:20:05,166 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:20:05,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:05 BoogieIcfgContainer [2022-11-22 02:20:05,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:20:05,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:20:05,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:20:05,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:20:05,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:20:03" (1/3) ... [2022-11-22 02:20:05,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497f405f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:05, skipping insertion in model container [2022-11-22 02:20:05,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:04" (2/3) ... [2022-11-22 02:20:05,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497f405f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:05, skipping insertion in model container [2022-11-22 02:20:05,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:05" (3/3) ... [2022-11-22 02:20:05,178 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2022-11-22 02:20:05,187 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:20:05,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:20:05,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-22 02:20:05,199 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:20:05,374 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:20:05,416 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:20:05,446 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 273 transitions, 551 flow [2022-11-22 02:20:05,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 273 transitions, 551 flow [2022-11-22 02:20:05,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 551 flow [2022-11-22 02:20:05,593 INFO L130 PetriNetUnfolder]: 4/272 cut-off events. [2022-11-22 02:20:05,594 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 02:20:05,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 4/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2022-11-22 02:20:05,614 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2022-11-22 02:20:32,718 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 114 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:20:40,418 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 114 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:20:52,925 WARN L233 SmtUtils]: Spent 9.90s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:21:06,729 WARN L233 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:21:11,902 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:21:31,859 WARN L233 SmtUtils]: Spent 19.90s on a formula simplification. DAG size of input: 156 DAG size of output: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:21:38,079 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:21:58,248 WARN L233 SmtUtils]: Spent 20.17s on a formula simplification. DAG size of input: 156 DAG size of output: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:22:04,556 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:23:01,972 WARN L233 SmtUtils]: Spent 57.37s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:23:56,474 WARN L233 SmtUtils]: Spent 54.50s on a formula simplification that was a NOOP. DAG size: 238 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:25:19,869 WARN L233 SmtUtils]: Spent 1.39m on a formula simplification that was a NOOP. DAG size: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:26:54,221 WARN L233 SmtUtils]: Spent 1.57m on a formula simplification that was a NOOP. DAG size: 238 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:29:51,026 WARN L233 SmtUtils]: Spent 2.95m on a formula simplification that was a NOOP. DAG size: 320 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:31:46,537 WARN L233 SmtUtils]: Spent 1.93m on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 02:34:27,218 WARN L233 SmtUtils]: Spent 2.68m on a formula simplification that was a NOOP. DAG size: 326 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)