./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0 --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 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 --- 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-e04fb08 [2022-11-16 16:29:43,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:29:44,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:29:44,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:29:44,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:29:44,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:29:44,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:29:44,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:29:44,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:29:44,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:29:44,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:29:44,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:29:44,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:29:44,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:29:44,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:29:44,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:29:44,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:29:44,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:29:44,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:29:44,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:29:44,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:29:44,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:29:44,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:29:44,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:29:44,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:29:44,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:29:44,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:29:44,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:29:44,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:29:44,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:29:44,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:29:44,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:29:44,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:29:44,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:29:44,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:29:44,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:29:44,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:29:44,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:29:44,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:29:44,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:29:44,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:29:44,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-16 16:29:44,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:29:44,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:29:44,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:29:44,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:29:44,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:29:44,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:29:44,127 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:29:44,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:29:44,128 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:29:44,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:29:44,128 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:29:44,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:29:44,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:29:44,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:29:44,129 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:29:44,129 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:29:44,129 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:29:44,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:29:44,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:29:44,130 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:29:44,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:29:44,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:29:44,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:29:44,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:29:44,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:29:44,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:29:44,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:29:44,132 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 16:29:44,132 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:29:44,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:29:44,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:29:44,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:29:44,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:29:44,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:29:44,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:29:44,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:29:44,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:29:44,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:29:44,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:29:44,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:29:44,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:29:44,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:29:44,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:29:44,135 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_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 [2022-11-16 16:29:44,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:29:44,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:29:44,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:29:44,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:29:44,439 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:29:44,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-16 16:29:44,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/data/d928077e6/abdd48c9c7624a0fbfc0174f77054b2a/FLAGe1930bebd [2022-11-16 16:29:45,155 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:29:45,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-16 16:29:45,166 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/data/d928077e6/abdd48c9c7624a0fbfc0174f77054b2a/FLAGe1930bebd [2022-11-16 16:29:45,481 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/data/d928077e6/abdd48c9c7624a0fbfc0174f77054b2a [2022-11-16 16:29:45,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:29:45,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:29:45,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:29:45,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:29:45,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:29:45,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:29:45" (1/1) ... [2022-11-16 16:29:45,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8115b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:45, skipping insertion in model container [2022-11-16 16:29:45,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:29:45" (1/1) ... [2022-11-16 16:29:45,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:29:45,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:29:45,973 WARN L229 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_54fcb04f-ecb8-4e60-a7b6-08664456f567/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-16 16:29:45,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:29:45,983 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:29:46,041 WARN L229 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_54fcb04f-ecb8-4e60-a7b6-08664456f567/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-16 16:29:46,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:29:46,060 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:29:46,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46 WrapperNode [2022-11-16 16:29:46,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:29:46,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:29:46,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:29:46,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:29:46,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,177 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 1068 [2022-11-16 16:29:46,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:29:46,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:29:46,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:29:46,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:29:46,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:29:46,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:29:46,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:29:46,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:29:46,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (1/1) ... [2022-11-16 16:29:46,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:29:46,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:29:46,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:29:46,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54fcb04f-ecb8-4e60-a7b6-08664456f567/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:29:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:29:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 16:29:46,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 16:29:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 16:29:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 16:29:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 16:29:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 16:29:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 16:29:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 16:29:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:29:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:29:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:29:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 16:29:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 16:29:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:29:46,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:29:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:29:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:29:46,393 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 16:29:46,662 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:29:46,664 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:29:48,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:29:49,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:29:49,124 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:29:49,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:29:49 BoogieIcfgContainer [2022-11-16 16:29:49,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:29:49,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:29:49,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:29:49,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:29:49,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:29:45" (1/3) ... [2022-11-16 16:29:49,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c49bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:29:49, skipping insertion in model container [2022-11-16 16:29:49,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:29:46" (2/3) ... [2022-11-16 16:29:49,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c49bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:29:49, skipping insertion in model container [2022-11-16 16:29:49,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:29:49" (3/3) ... [2022-11-16 16:29:49,140 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-11-16 16:29:49,150 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 16:29:49,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:29:49,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 195 error locations. [2022-11-16 16:29:49,162 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 16:29:49,341 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 16:29:49,382 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 16:29:49,397 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 531 places, 528 transitions, 1088 flow [2022-11-16 16:29:49,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 531 places, 528 transitions, 1088 flow [2022-11-16 16:29:49,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 531 places, 528 transitions, 1088 flow [2022-11-16 16:29:49,688 INFO L130 PetriNetUnfolder]: 10/524 cut-off events. [2022-11-16 16:29:49,689 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 16:29:49,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 524 events. 10/524 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1362 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 408. Up to 2 conditions per place. [2022-11-16 16:29:49,725 INFO L119 LiptonReduction]: Number of co-enabled transitions 56640 [2022-11-16 16:30:32,354 INFO L134 LiptonReduction]: Checked pairs total: 623563 [2022-11-16 16:30:32,355 INFO L136 LiptonReduction]: Total number of compositions: 1395 [2022-11-16 16:30:32,365 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 285 places, 272 transitions, 576 flow