./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 17:49:41,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 17:49:41,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 17:49:41,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 17:49:41,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 17:49:41,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 17:49:41,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 17:49:41,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 17:49:41,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 17:49:41,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 17:49:41,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 17:49:41,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 17:49:41,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 17:49:41,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 17:49:41,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 17:49:41,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 17:49:41,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 17:49:41,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 17:49:41,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 17:49:41,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 17:49:41,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 17:49:41,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 17:49:41,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 17:49:41,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 17:49:41,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 17:49:41,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 17:49:41,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 17:49:41,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 17:49:41,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 17:49:41,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 17:49:41,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 17:49:41,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 17:49:41,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 17:49:41,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 17:49:41,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 17:49:41,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 17:49:41,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 17:49:41,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 17:49:41,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 17:49:41,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 17:49:41,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 17:49:41,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 17:49:41,818 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 17:49:41,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 17:49:41,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 17:49:41,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 17:49:41,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 17:49:41,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 17:49:41,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 17:49:41,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 17:49:41,821 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 17:49:41,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 17:49:41,822 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 17:49:41,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 17:49:41,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 17:49:41,823 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 17:49:41,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 17:49:41,824 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 17:49:41,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 17:49:41,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 17:49:41,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 17:49:41,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 17:49:41,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 17:49:41,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 17:49:41,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 17:49:41,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 17:49:41,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 17:49:41,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 17:49:41,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 17:49:41,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 17:49:41,826 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 17:49:41,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 17:49:41,826 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 17:49:41,826 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 17:49:42,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 17:49:42,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 17:49:42,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 17:49:42,075 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 17:49:42,076 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 17:49:42,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i [2023-08-31 17:49:43,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 17:49:43,257 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 17:49:43,257 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i [2023-08-31 17:49:43,266 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45ed75f6e/d9e3b32670f244ed8ef52d8d974c3b68/FLAG9b5af918f [2023-08-31 17:49:43,588 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45ed75f6e/d9e3b32670f244ed8ef52d8d974c3b68 [2023-08-31 17:49:43,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 17:49:43,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 17:49:43,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 17:49:43,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 17:49:43,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 17:49:43,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:49:43" (1/1) ... [2023-08-31 17:49:43,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d794359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:43, skipping insertion in model container [2023-08-31 17:49:43,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:49:43" (1/1) ... [2023-08-31 17:49:43,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 17:49:43,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 17:49:43,712 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i[993,1006] [2023-08-31 17:49:43,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 17:49:43,919 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 17:49:43,934 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i[993,1006] [2023-08-31 17:49:43,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 17:49:44,021 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 17:49:44,021 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 17:49:44,026 INFO L208 MainTranslator]: Completed translation [2023-08-31 17:49:44,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44 WrapperNode [2023-08-31 17:49:44,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 17:49:44,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 17:49:44,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 17:49:44,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 17:49:44,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,102 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 809 [2023-08-31 17:49:44,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 17:49:44,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 17:49:44,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 17:49:44,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 17:49:44,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 17:49:44,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 17:49:44,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 17:49:44,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 17:49:44,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (1/1) ... [2023-08-31 17:49:44,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 17:49:44,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 17:49:44,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 17:49:44,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 17:49:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 17:49:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 17:49:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 17:49:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 17:49:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 17:49:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 17:49:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-31 17:49:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-31 17:49:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-31 17:49:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-31 17:49:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-31 17:49:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-31 17:49:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-31 17:49:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-31 17:49:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 17:49:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 17:49:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 17:49:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 17:49:44,267 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 17:49:44,480 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 17:49:44,482 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 17:49:45,646 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 17:57:25,815 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 17:57:25,816 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 17:57:25,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:57:25 BoogieIcfgContainer [2023-08-31 17:57:25,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 17:57:25,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 17:57:25,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 17:57:25,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 17:57:25,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 05:49:43" (1/3) ... [2023-08-31 17:57:25,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc0b714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 05:57:25, skipping insertion in model container [2023-08-31 17:57:25,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:49:44" (2/3) ... [2023-08-31 17:57:25,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc0b714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 05:57:25, skipping insertion in model container [2023-08-31 17:57:25,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:57:25" (3/3) ... [2023-08-31 17:57:25,823 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.oepc.i [2023-08-31 17:57:25,829 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 17:57:25,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 17:57:25,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 307 error locations. [2023-08-31 17:57:25,835 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 17:57:52,685 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 17:57:52,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 452 transitions, 924 flow [2023-08-31 17:59:12,730 INFO L130 PetriNetUnfolder]: 2/448 cut-off events. [2023-08-31 17:59:12,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 17:59:12,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 448 events. 2/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 2694 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 392. Up to 2 conditions per place. [2023-08-31 17:59:12,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 452 transitions, 924 flow [2023-08-31 17:59:12,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 448 transitions, 908 flow [2023-08-31 17:59:12,754 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 17:59:12,765 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 448 transitions, 908 flow [2023-08-31 17:59:12,768 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 448 transitions, 908 flow [2023-08-31 17:59:12,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 459 places, 448 transitions, 908 flow [2023-08-31 18:00:30,577 INFO L130 PetriNetUnfolder]: 2/448 cut-off events. [2023-08-31 18:00:30,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 18:00:30,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 448 events. 2/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 2692 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 392. Up to 2 conditions per place. [2023-08-31 18:00:30,599 INFO L119 LiptonReduction]: Number of co-enabled transitions 94092 Killed by 15