./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:08:22,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:08:22,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:08:22,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:08:22,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:08:22,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:08:22,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:08:22,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:08:22,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:08:22,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:08:22,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:08:22,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:08:22,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:08:22,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:08:22,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:08:22,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:08:22,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:08:22,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:08:22,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:08:22,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:08:22,244 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:08:22,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:08:22,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:08:22,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:08:22,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:08:22,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:08:22,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:08:22,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:08:22,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:08:22,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:08:22,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:08:22,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:08:22,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:08:22,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:08:22,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:08:22,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:08:22,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:08:22,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:08:22,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:08:22,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:08:22,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:08:22,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:08:22,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:08:22,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:08:22,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:08:22,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:08:22,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:08:22,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:08:22,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:08:22,288 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:08:22,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:08:22,288 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:08:22,289 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:08:22,289 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:08:22,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:08:22,290 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:08:22,290 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:08:22,290 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:08:22,290 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:08:22,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:08:22,291 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:08:22,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:08:22,292 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:08:22,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:08:22,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:08:22,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:08:22,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:08:22,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:08:22,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:08:22,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:08:22,293 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:08:22,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:08:22,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:08:22,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:08:22,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:08:22,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:08:22,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:08:22,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:08:22,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:08:22,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:08:22,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:08:22,295 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:08:22,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:08:22,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:08:22,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:08:22,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:08:22,296 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdecd751bbf3d5ef761eacebee2616261a6cad4ae3645147e0ad096bd1775198 [2022-04-18 20:08:22,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:08:22,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:08:22,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:08:22,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:08:22,549 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:08:22,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-04-18 20:08:22,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f944bcf8e/7946fd80807a42a0b02ba8857760b7d1/FLAGedbb3b0f7 [2022-04-18 20:08:23,017 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:08:23,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-04-18 20:08:23,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f944bcf8e/7946fd80807a42a0b02ba8857760b7d1/FLAGedbb3b0f7 [2022-04-18 20:08:23,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f944bcf8e/7946fd80807a42a0b02ba8857760b7d1 [2022-04-18 20:08:23,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:08:23,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:08:23,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:08:23,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:08:23,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:08:23,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd582bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23, skipping insertion in model container [2022-04-18 20:08:23,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:08:23,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:08:23,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-04-18 20:08:23,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:08:23,807 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:08:23,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[996,1009] [2022-04-18 20:08:23,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:08:23,895 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:08:23,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23 WrapperNode [2022-04-18 20:08:23,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:08:23,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:08:23,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:08:23,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:08:23,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,954 INFO L137 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 455 [2022-04-18 20:08:23,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:08:23,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:08:23,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:08:23,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:08:23,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:23,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:24,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:24,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:24,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:08:24,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:08:24,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:08:24,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:08:24,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (1/1) ... [2022-04-18 20:08:24,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:08:24,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:08:24,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:08:24,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:08:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:08:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:08:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:08:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:08:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:08:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 20:08:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 20:08:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 20:08:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 20:08:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:08:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:08:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:08:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:08:24,101 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:08:24,275 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:08:24,277 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:08:25,298 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:08:59,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:08:59,134 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 20:08:59,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:08:59 BoogieIcfgContainer [2022-04-18 20:08:59,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:08:59,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:08:59,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:08:59,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:08:59,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:08:23" (1/3) ... [2022-04-18 20:08:59,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70db5f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:08:59, skipping insertion in model container [2022-04-18 20:08:59,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:23" (2/3) ... [2022-04-18 20:08:59,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70db5f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:08:59, skipping insertion in model container [2022-04-18 20:08:59,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:08:59" (3/3) ... [2022-04-18 20:08:59,145 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-04-18 20:08:59,149 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:08:59,149 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:08:59,150 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 209 error locations. [2022-04-18 20:08:59,150 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:09:04,017 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 20:09:04,055 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:09:04,061 INFO L340 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 [2022-04-18 20:09:04,061 INFO L341 AbstractCegarLoop]: Starting to check reachability of 385 error locations. [2022-04-18 20:09:04,074 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:09:04,088 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 306 transitions, 622 flow [2022-04-18 20:09:04,093 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 306 transitions, 622 flow [2022-04-18 20:09:04,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 311 places, 306 transitions, 622 flow [2022-04-18 20:09:04,592 INFO L129 PetriNetUnfolder]: 2/304 cut-off events. [2022-04-18 20:09:04,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 20:09:04,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 304 events. 2/304 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1833 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 266. Up to 2 conditions per place. [2022-04-18 20:09:04,618 INFO L116 LiptonReduction]: Number of co-enabled transitions 40996