./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix032.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/mix032.opt.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 0032fd1b0879d5a3b3f4ef67d0327f489d9a349f94447e8a77b1324c1477f2bb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 20:16:49,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 20:16:49,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 20:16:49,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 20:16:49,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 20:16:49,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 20:16:49,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 20:16:49,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 20:16:49,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 20:16:49,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 20:16:49,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 20:16:49,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 20:16:49,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 20:16:49,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 20:16:49,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 20:16:49,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 20:16:49,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 20:16:49,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 20:16:49,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 20:16:49,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 20:16:49,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 20:16:49,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 20:16:49,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 20:16:49,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 20:16:49,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 20:16:49,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 20:16:49,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 20:16:49,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 20:16:49,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 20:16:49,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 20:16:49,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 20:16:49,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 20:16:49,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 20:16:49,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 20:16:49,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 20:16:49,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 20:16:49,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 20:16:49,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 20:16:49,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 20:16:49,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 20:16:49,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 20:16:49,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 20:16:49,857 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 20:16:49,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 20:16:49,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 20:16:49,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 20:16:49,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 20:16:49,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 20:16:49,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 20:16:49,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 20:16:49,860 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 20:16:49,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 20:16:49,861 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 20:16:49,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 20:16:49,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 20:16:49,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 20:16:49,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 20:16:49,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 20:16:49,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 20:16:49,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 20:16:49,863 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 20:16:49,863 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 20:16:49,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 20:16:49,864 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 20:16:49,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 20:16:49,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 20:16:49,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 20:16:49,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 20:16:49,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 20:16:49,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 20:16:49,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 20:16:49,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 20:16:49,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 20:16:49,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 20:16:49,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 20:16:49,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 20:16:49,866 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 20:16:49,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 20:16:49,867 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 20:16:49,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0032fd1b0879d5a3b3f4ef67d0327f489d9a349f94447e8a77b1324c1477f2bb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 20:16:50,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 20:16:50,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 20:16:50,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 20:16:50,194 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 20:16:50,195 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 20:16:50,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix032.opt.i [2023-08-28 20:16:51,380 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 20:16:51,644 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 20:16:51,645 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix032.opt.i [2023-08-28 20:16:51,659 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9959a15a/22d4bdcd456a49faa7f492ca744fa7c2/FLAG71245de9a [2023-08-28 20:16:51,680 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9959a15a/22d4bdcd456a49faa7f492ca744fa7c2 [2023-08-28 20:16:51,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 20:16:51,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 20:16:51,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 20:16:51,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 20:16:51,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 20:16:51,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 08:16:51" (1/1) ... [2023-08-28 20:16:51,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d61e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:51, skipping insertion in model container [2023-08-28 20:16:51,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 08:16:51" (1/1) ... [2023-08-28 20:16:51,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 20:16:51,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 20:16:51,863 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/mix032.opt.i[944,957] [2023-08-28 20:16:52,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 20:16:52,119 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 20:16:52,132 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/mix032.opt.i[944,957] [2023-08-28 20:16:52,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 20:16:52,303 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 20:16:52,303 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 20:16:52,309 INFO L208 MainTranslator]: Completed translation [2023-08-28 20:16:52,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52 WrapperNode [2023-08-28 20:16:52,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 20:16:52,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 20:16:52,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 20:16:52,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 20:16:52,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,399 INFO L138 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 517 [2023-08-28 20:16:52,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 20:16:52,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 20:16:52,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 20:16:52,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 20:16:52,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 20:16:52,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 20:16:52,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 20:16:52,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 20:16:52,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (1/1) ... [2023-08-28 20:16:52,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 20:16:52,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 20:16:52,510 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) [2023-08-28 20:16:52,517 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 [2023-08-28 20:16:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 20:16:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-28 20:16:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 20:16:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 20:16:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 20:16:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-28 20:16:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-28 20:16:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-28 20:16:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-28 20:16:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-28 20:16:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-28 20:16:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 20:16:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-28 20:16:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 20:16:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 20:16:52,543 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 20:16:52,728 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 20:16:52,730 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 20:16:53,716 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 20:19:39,460 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 20:19:39,460 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-28 20:19:39,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 08:19:39 BoogieIcfgContainer [2023-08-28 20:19:39,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 20:19:39,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 20:19:39,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 20:19:39,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 20:19:39,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 08:16:51" (1/3) ... [2023-08-28 20:19:39,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a42d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 08:19:39, skipping insertion in model container [2023-08-28 20:19:39,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 08:16:52" (2/3) ... [2023-08-28 20:19:39,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a42d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 08:19:39, skipping insertion in model container [2023-08-28 20:19:39,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 08:19:39" (3/3) ... [2023-08-28 20:19:39,470 INFO L112 eAbstractionObserver]: Analyzing ICFG mix032.opt.i [2023-08-28 20:19:39,477 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 20:19:39,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 20:19:39,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 197 error locations. [2023-08-28 20:19:39,484 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 20:19:58,000 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 20:19:58,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 314 transitions, 643 flow [2023-08-28 20:20:27,607 INFO L130 PetriNetUnfolder]: 2/311 cut-off events. [2023-08-28 20:20:27,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 20:20:27,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 311 events. 2/311 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1619 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 270. Up to 2 conditions per place. [2023-08-28 20:20:27,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 314 transitions, 643 flow [2023-08-28 20:20:27,628 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 319 places, 311 transitions, 631 flow [2023-08-28 20:20:27,631 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 20:20:27,641 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 319 places, 311 transitions, 631 flow [2023-08-28 20:20:27,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 319 places, 311 transitions, 631 flow [2023-08-28 20:20:27,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 319 places, 311 transitions, 631 flow [2023-08-28 20:20:55,526 INFO L130 PetriNetUnfolder]: 2/311 cut-off events. [2023-08-28 20:20:55,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 20:20:55,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 311 events. 2/311 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1618 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 270. Up to 2 conditions per place. [2023-08-28 20:20:55,545 INFO L119 LiptonReduction]: Number of co-enabled transitions 44510 [2023-08-28 20:21:10,454 INFO L134 LiptonReduction]: Checked pairs total: 387066 [2023-08-28 20:21:10,454 INFO L136 LiptonReduction]: Total number of compositions: 174 [2023-08-28 20:21:10,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 20:21:10,470 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@313a3414, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 20:21:10,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 359 error locations. [2023-08-28 20:21:10,473 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-28 20:21:10,473 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 20:21:10,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 20:21:10,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-28 20:21:10,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 355 more)] === [2023-08-28 20:21:10,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 20:21:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash 6760696, now seen corresponding path program 1 times [2023-08-28 20:21:10,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 20:21:10,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922744557] [2023-08-28 20:21:10,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 20:21:10,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 20:21:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 20:21:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 20:21:11,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 20:21:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922744557] [2023-08-28 20:21:11,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922744557] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 20:21:11,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 20:21:11,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 20:21:11,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312517570] [2023-08-28 20:21:11,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 20:21:11,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 20:21:11,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 20:21:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 20:21:11,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 20:21:11,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 488 [2023-08-28 20:21:11,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 218 transitions, 445 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 20:21:11,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 20:21:11,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 488 [2023-08-28 20:21:11,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15