./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS --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 d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 --- 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-8393723 [2022-11-19 07:58:20,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:20,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:20,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:20,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:20,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:20,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:20,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:20,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:20,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:20,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:20,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:20,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:20,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:20,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:20,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:20,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:20,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:20,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:20,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:20,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:20,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:20,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:20,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:20,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:20,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:20,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:20,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:20,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:20,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:20,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:20,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:20,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:20,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:20,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:20,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:20,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:20,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:20,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:20,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:20,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:20,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 07:58:20,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:20,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:20,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:20,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:20,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:20,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:20,328 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:20,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:20,329 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:20,329 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:58:20,329 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:20,329 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:20,330 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:58:20,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:58:20,330 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:20,330 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:58:20,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:58:20,331 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:58:20,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:20,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:58:20,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:58:20,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:58:20,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:58:20,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:20,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:20,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:20,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:20,334 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 07:58:20,334 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:58:20,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:20,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:20,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:20,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:20,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:20,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:20,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:20,336 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:58:20,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:20,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:20,337 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:58:20,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:58:20,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:20,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:20,338 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_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 [2022-11-19 07:58:20,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:20,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:20,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:20,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:20,672 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:20,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2022-11-19 07:58:20,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/data/38a97f889/a0b74c5aa6b14411ae5529a5e7342a96/FLAG4cf2db70d [2022-11-19 07:58:21,326 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:21,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2022-11-19 07:58:21,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/data/38a97f889/a0b74c5aa6b14411ae5529a5e7342a96/FLAG4cf2db70d [2022-11-19 07:58:21,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/data/38a97f889/a0b74c5aa6b14411ae5529a5e7342a96 [2022-11-19 07:58:21,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:21,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:21,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:21,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:21,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:21,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:21" (1/1) ... [2022-11-19 07:58:21,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b627ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:21, skipping insertion in model container [2022-11-19 07:58:21,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:21" (1/1) ... [2022-11-19 07:58:21,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:21,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:22,066 WARN L234 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_f649bd6e-7aa8-467c-85e5-73fd7644446b/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2781,2794] [2022-11-19 07:58:22,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:22,083 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:58:22,136 WARN L234 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_f649bd6e-7aa8-467c-85e5-73fd7644446b/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2781,2794] [2022-11-19 07:58:22,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:22,174 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:58:22,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22 WrapperNode [2022-11-19 07:58:22,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:22,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:22,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:58:22,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:58:22,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,260 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 508 [2022-11-19 07:58:22,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:22,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:58:22,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:58:22,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:58:22,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,356 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:58:22,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:58:22,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:58:22,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:58:22,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2022-11-19 07:58:22,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:22,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:22,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:58:22,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f649bd6e-7aa8-467c-85e5-73fd7644446b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:58:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:58:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:58:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:58:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:58:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-19 07:58:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-19 07:58:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-19 07:58:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-19 07:58:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-19 07:58:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-19 07:58:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:58:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:58:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:58:22,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:58:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:58:22,475 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:58:22,643 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:58:22,645 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:58:23,607 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:58:23,623 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:58:23,623 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-19 07:58:23,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:23 BoogieIcfgContainer [2022-11-19 07:58:23,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:58:23,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:58:23,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:58:23,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:58:23,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:21" (1/3) ... [2022-11-19 07:58:23,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d0ecd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:23, skipping insertion in model container [2022-11-19 07:58:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (2/3) ... [2022-11-19 07:58:23,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d0ecd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:23, skipping insertion in model container [2022-11-19 07:58:23,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:23" (3/3) ... [2022-11-19 07:58:23,638 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2022-11-19 07:58:23,647 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:58:23,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:58:23,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2022-11-19 07:58:23,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:58:23,848 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-19 07:58:23,911 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:58:23,928 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 627 places, 650 transitions, 1324 flow [2022-11-19 07:58:23,933 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 627 places, 650 transitions, 1324 flow [2022-11-19 07:58:23,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 627 places, 650 transitions, 1324 flow [2022-11-19 07:58:24,282 INFO L130 PetriNetUnfolder]: 33/647 cut-off events. [2022-11-19 07:58:24,283 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-19 07:58:24,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 647 events. 33/647 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1516 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 460. Up to 3 conditions per place. [2022-11-19 07:58:24,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 94392 [2022-11-19 07:58:57,572 INFO L134 LiptonReduction]: Checked pairs total: 930600 [2022-11-19 07:58:57,572 INFO L136 LiptonReduction]: Total number of compositions: 838 [2022-11-19 07:58:57,584 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 192 places, 197 transitions, 418 flow [2022-11-19 07:59:17,383 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 640269 states, 633263 states have (on average 4.076690095584299) internal successors, (2581617), 640268 states have internal predecessors, (2581617), 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) [2022-11-19 07:59:17,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:59:17,439 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;@50483182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:59:17,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2022-11-19 07:59:20,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 640269 states, 633263 states have (on average 4.076690095584299) internal successors, (2581617), 640268 states have internal predecessors, (2581617), 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) [2022-11-19 07:59:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:59:20,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:20,112 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:59:20,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2022-11-19 07:59:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:20,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2495, now seen corresponding path program 1 times [2022-11-19 07:59:20,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:20,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570272453] [2022-11-19 07:59:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:20,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:59:20,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:20,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570272453] [2022-11-19 07:59:20,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570272453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:20,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:20,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:59:20,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823526795] [2022-11-19 07:59:20,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:20,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:59:20,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:20,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:59:20,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:59:21,558 INFO L87 Difference]: Start difference. First operand has 640269 states, 633263 states have (on average 4.076690095584299) internal successors, (2581617), 640268 states have internal predecessors, (2581617), 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) [2022-11-19 07:59:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:27,215 INFO L93 Difference]: Finished difference Result 301262 states and 1203971 transitions. [2022-11-19 07:59:27,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:59:27,218 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 [2022-11-19 07:59:27,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:31,023 INFO L225 Difference]: With dead ends: 301262 [2022-11-19 07:59:31,024 INFO L226 Difference]: Without dead ends: 301257 [2022-11-19 07:59:31,025 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 [2022-11-19 07:59:31,028 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:31,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:59:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301257 states. [2022-11-19 07:59:43,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301257 to 301257. [2022-11-19 07:59:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301257 states, 300978 states have (on average 4.000159480094891) internal successors, (1203960), 301256 states have internal predecessors, (1203960), 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)