./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW --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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- 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-4e7fbc6 [2022-11-23 13:44:00,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:44:00,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:44:00,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:44:00,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:44:00,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:44:00,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:44:00,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:44:00,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:44:00,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:44:00,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:44:00,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:44:00,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:44:00,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:44:00,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:44:00,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:44:00,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:44:00,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:44:00,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:44:00,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:44:00,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:44:00,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:44:00,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:44:00,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:44:00,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:44:00,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:44:00,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:44:00,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:44:00,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:44:00,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:44:00,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:44:00,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:44:00,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:44:00,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:44:00,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:44:00,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:44:00,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:44:00,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:44:00,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:44:00,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:44:00,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:44:00,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 13:44:00,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:44:00,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:44:00,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:44:00,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:44:00,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:44:00,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:44:00,318 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:44:00,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:44:00,318 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:44:00,319 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:44:00,320 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:44:00,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:44:00,320 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:44:00,320 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:44:00,320 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:44:00,321 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:44:00,321 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:44:00,321 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:44:00,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:44:00,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:44:00,322 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:44:00,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:44:00,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:44:00,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:44:00,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:44:00,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:44:00,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:44:00,324 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 13:44:00,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:44:00,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:44:00,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:44:00,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:44:00,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:44:00,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:44:00,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:44:00,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:44:00,326 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:44:00,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:44:00,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:44:00,327 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:44:00,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:44:00,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:44:00,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:44:00,328 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_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2022-11-23 13:44:00,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:44:00,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:44:00,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:44:00,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:44:00,664 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:44:00,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2022-11-23 13:44:03,824 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:44:04,140 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:44:04,141 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2022-11-23 13:44:04,156 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/data/a4c9d6a15/46c7a1db4a75437894945baa7fc8e996/FLAG6c59151dc [2022-11-23 13:44:04,171 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/data/a4c9d6a15/46c7a1db4a75437894945baa7fc8e996 [2022-11-23 13:44:04,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:44:04,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:44:04,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:44:04,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:44:04,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:44:04,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:04,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6baa74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04, skipping insertion in model container [2022-11-23 13:44:04,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:04,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:44:04,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:44:04,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2022-11-23 13:44:04,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:44:04,791 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:44:04,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2022-11-23 13:44:04,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:44:04,957 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:44:04,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04 WrapperNode [2022-11-23 13:44:04,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:44:04,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:44:04,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:44:04,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:44:04,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,073 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 521 [2022-11-23 13:44:05,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:44:05,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:44:05,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:44:05,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:44:05,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:44:05,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:44:05,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:44:05,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:44:05,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (1/1) ... [2022-11-23 13:44:05,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:44:05,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:44:05,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:44:05,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00565db-a723-4b13-b0ea-b4f40bb36061/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:44:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:44:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 13:44:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:44:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:44:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:44:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 13:44:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 13:44:05,272 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 13:44:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 13:44:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 13:44:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 13:44:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-23 13:44:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-23 13:44:05,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:44:05,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 13:44:05,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:44:05,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:44:05,276 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 13:44:05,517 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:44:05,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:44:07,328 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:44:29,563 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:44:29,564 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 13:44:29,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:29 BoogieIcfgContainer [2022-11-23 13:44:29,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:44:29,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:44:29,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:44:29,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:44:29,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:44:04" (1/3) ... [2022-11-23 13:44:29,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122df1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:44:29, skipping insertion in model container [2022-11-23 13:44:29,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:44:04" (2/3) ... [2022-11-23 13:44:29,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122df1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:44:29, skipping insertion in model container [2022-11-23 13:44:29,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:44:29" (3/3) ... [2022-11-23 13:44:29,577 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2022-11-23 13:44:29,587 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 13:44:29,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:44:29,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 285 error locations. [2022-11-23 13:44:29,597 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 13:44:35,241 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 13:44:35,282 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 13:44:35,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 428 transitions, 876 flow [2022-11-23 13:44:35,300 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 428 transitions, 876 flow [2022-11-23 13:44:35,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 428 transitions, 876 flow [2022-11-23 13:44:37,364 INFO L130 PetriNetUnfolder]: 2/424 cut-off events. [2022-11-23 13:44:37,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 13:44:37,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 424 events. 2/424 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2220 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 380. Up to 2 conditions per place. [2022-11-23 13:44:37,415 INFO L119 LiptonReduction]: Number of co-enabled transitions 97064 [2022-11-23 13:45:18,614 WARN L233 SmtUtils]: Spent 10.92s on a formula simplification. DAG size of input: 2300 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 13:45:29,542 WARN L233 SmtUtils]: Spent 10.87s on a formula simplification. DAG size of input: 2300 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 13:45:38,463 WARN L233 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 2300 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 13:45:49,601 WARN L233 SmtUtils]: Spent 11.08s on a formula simplification. DAG size of input: 2347 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 13:46:01,047 WARN L233 SmtUtils]: Spent 11.37s on a formula simplification. DAG size of input: 2367 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)