./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_rmo.oepc.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/safe018_rmo.oepc.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 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:07:11,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:07:11,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:07:11,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:07:11,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:07:11,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:07:11,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:07:11,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:07:11,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:07:11,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:07:11,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:07:11,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:07:11,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:07:11,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:07:11,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:07:11,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:07:11,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:07:11,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:07:11,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:07:11,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:07:11,220 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:07:11,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:07:11,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:07:11,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:07:11,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:07:11,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:07:11,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:07:11,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:07:11,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:07:11,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:07:11,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:07:11,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:07:11,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:07:11,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:07:11,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:07:11,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:07:11,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:07:11,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:07:11,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:07:11,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:07:11,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:07:11,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:07:11,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:07:11,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:07:11,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:07:11,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:07:11,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:07:11,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:07:11,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:07:11,260 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:07:11,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:07:11,261 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:07:11,261 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:07:11,262 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:07:11,262 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:07:11,262 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:07:11,262 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:07:11,262 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:07:11,263 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:07:11,264 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:07:11,264 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:07:11,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:07:11,265 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:07:11,265 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:07:11,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:07:11,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:07:11,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:07:11,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:07:11,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:07:11,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:07:11,267 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:07:11,267 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:07:11,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:07:11,267 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:07:11,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:07:11,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:07:11,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:07:11,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:07:11,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:07:11,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:07:11,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:07:11,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:07:11,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:07:11,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:07:11,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:07:11,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:07:11,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb [2022-04-18 20:07:11,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:07:11,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:07:11,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:07:11,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:07:11,499 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:07:11,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_rmo.oepc.i [2022-04-18 20:07:11,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f80f33b65/d7db6117c311448f8c5b3eedf4ee05b8/FLAGb2303de5c [2022-04-18 20:07:11,941 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:07:11,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_rmo.oepc.i [2022-04-18 20:07:11,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f80f33b65/d7db6117c311448f8c5b3eedf4ee05b8/FLAGb2303de5c [2022-04-18 20:07:12,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f80f33b65/d7db6117c311448f8c5b3eedf4ee05b8 [2022-04-18 20:07:12,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:07:12,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:07:12,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:07:12,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:07:12,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:07:12,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1988b41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12, skipping insertion in model container [2022-04-18 20:07:12,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:07:12,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:07:12,543 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/safe018_rmo.oepc.i[993,1006] [2022-04-18 20:07:12,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:07:12,745 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:07:12,760 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/safe018_rmo.oepc.i[993,1006] [2022-04-18 20:07:12,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:07:12,859 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:07:12,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12 WrapperNode [2022-04-18 20:07:12,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:07:12,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:07:12,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:07:12,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:07:12,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,948 INFO L137 Inliner]: procedures = 176, calls = 65, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 315 [2022-04-18 20:07:12,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:07:12,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:07:12,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:07:12,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:07:12,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:12,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:13,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:13,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:13,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:13,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:07:13,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:07:13,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:07:13,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:07:13,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:07:12" (1/1) ... [2022-04-18 20:07:13,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:07:13,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:07:13,068 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 20:07:13,076 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 20:07:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:07:13,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:07:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:07:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:07:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:07:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:07:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 20:07:13,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 20:07:13,100 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 20:07:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 20:07:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 20:07:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 20:07:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:07:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:07:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:07:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:07:13,103 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 20:07:13,248 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:07:13,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:07:14,230 INFO L275 CfgBuilder]: Performing block encoding