./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.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/thin002_rmo.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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:12:43,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:12:43,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:12:43,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:12:43,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:12:43,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:12:43,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:12:43,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:12:43,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:12:43,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:12:43,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:12:43,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:12:43,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:12:43,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:12:43,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:12:43,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:12:43,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:12:43,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:12:43,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:12:43,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:12:43,685 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:12:43,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:12:43,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:12:43,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:12:43,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:12:43,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:12:43,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:12:43,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:12:43,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:12:43,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:12:43,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:12:43,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:12:43,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:12:43,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:12:43,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:12:43,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:12:43,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:12:43,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:12:43,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:12:43,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:12:43,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:12:43,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:12:43,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:12:43,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:12:43,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:12:43,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:12:43,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:12:43,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:12:43,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:12:43,740 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:12:43,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:12:43,740 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:12:43,741 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:12:43,741 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:12:43,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:12:43,742 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:12:43,742 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:12:43,742 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:12:43,742 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:12:43,743 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:12:43,744 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:12:43,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:12:43,745 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:12:43,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:12:43,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:12:43,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:12:43,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:12:43,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:12:43,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:12:43,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:12:43,747 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:12:43,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:12:43,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:12:43,748 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:12:43,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:12:43,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:12:43,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:12:43,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:12:43,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:12:43,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:12:43,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:12:43,749 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:12:43,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:12:43,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:12:43,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:12:43,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:12:43,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2022-04-18 20:12:43,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:12:44,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:12:44,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:12:44,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:12:44,022 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:12:44,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i [2022-04-18 20:12:44,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc9ecd112/a6f63b24aa834a6481fe03a8f020b90c/FLAG577976598 [2022-04-18 20:12:44,516 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:12:44,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i [2022-04-18 20:12:44,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc9ecd112/a6f63b24aa834a6481fe03a8f020b90c/FLAG577976598 [2022-04-18 20:12:45,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc9ecd112/a6f63b24aa834a6481fe03a8f020b90c [2022-04-18 20:12:45,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:12:45,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:12:45,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:12:45,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:12:45,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:12:45,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ecd95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45, skipping insertion in model container [2022-04-18 20:12:45,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:12:45,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:12:45,249 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/thin002_rmo.i[988,1001] [2022-04-18 20:12:45,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:12:45,503 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:12:45,512 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/thin002_rmo.i[988,1001] [2022-04-18 20:12:45,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:12:45,634 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:12:45,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45 WrapperNode [2022-04-18 20:12:45,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:12:45,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:12:45,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:12:45,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:12:45,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,726 INFO L137 Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 339 [2022-04-18 20:12:45,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:12:45,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:12:45,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:12:45,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:12:45,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:12:45,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:12:45,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:12:45,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:12:45,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ... [2022-04-18 20:12:45,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:12:45,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:12:45,840 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 20:12:45,866 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 20:12:45,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:12:45,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:12:45,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:12:45,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:12:45,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:12:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:12:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 20:12:45,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 20:12:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 20:12:45,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 20:12:45,890 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 20:12:45,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 20:12:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-04-18 20:12:45,891 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-04-18 20:12:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:12:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:12:45,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:12:45,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:12:45,893 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 20:12:46,123 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:12:46,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:12:47,201 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:13:17,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:13:17,393 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 20:13:17,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:17 BoogieIcfgContainer [2022-04-18 20:13:17,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:13:17,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:13:17,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:13:17,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:13:17,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:12:45" (1/3) ... [2022-04-18 20:13:17,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c74c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:17, skipping insertion in model container [2022-04-18 20:13:17,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (2/3) ... [2022-04-18 20:13:17,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c74c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:17, skipping insertion in model container [2022-04-18 20:13:17,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:17" (3/3) ... [2022-04-18 20:13:17,403 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_rmo.i [2022-04-18 20:13:17,407 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:13:17,407 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:13:17,408 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 189 error locations. [2022-04-18 20:13:17,408 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:13:21,819 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 20:13:21,859 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:13:21,865 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 20:13:21,865 INFO L341 AbstractCegarLoop]: Starting to check reachability of 337 error locations. [2022-04-18 20:13:21,880 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:13:21,890 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 357 places, 346 transitions, 712 flow [2022-04-18 20:13:21,892 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 357 places, 346 transitions, 712 flow [2022-04-18 20:13:21,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 357 places, 346 transitions, 712 flow [2022-04-18 20:13:22,158 INFO L129 PetriNetUnfolder]: 2/342 cut-off events. [2022-04-18 20:13:22,159 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 20:13:22,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 342 events. 2/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1668 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2022-04-18 20:13:22,195 INFO L116 LiptonReduction]: Number of co-enabled transitions 48280