./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-figure1.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/weaver/popl20-figure1.wvr.c -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 33cf58268090640beca4b79cf718f2ee2d6c29dee3e4b3e200f8bf0a7c295123 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:11:29,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:11:29,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:11:29,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:11:29,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:11:29,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:11:29,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:11:29,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:11:29,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:11:29,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:11:29,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:11:29,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:11:29,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:11:29,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:11:29,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:11:29,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:11:29,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:11:29,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:11:29,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:11:29,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:11:29,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:11:29,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:11:29,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:11:29,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:11:29,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:11:29,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:11:29,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:11:29,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:11:29,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:11:29,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:11:29,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:11:29,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:11:29,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:11:29,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:11:29,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:11:29,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:11:29,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:11:29,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:11:29,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:11:29,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:11:29,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:11:29,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:11:29,660 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:11:29,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:11:29,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:11:29,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:11:29,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:11:29,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:11:29,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:11:29,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:11:29,665 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:11:29,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:11:29,666 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:11:29,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:11:29,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:11:29,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:11:29,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:11:29,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:11:29,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:11:29,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:11:29,667 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:11:29,668 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:11:29,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:11:29,668 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:11:29,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:11:29,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:11:29,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:11:29,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:11:29,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:11:29,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:11:29,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:11:29,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:11:29,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:11:29,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:11:29,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:11:29,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:11:29,671 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:11:29,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:11:29,671 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:11:29,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33cf58268090640beca4b79cf718f2ee2d6c29dee3e4b3e200f8bf0a7c295123 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:11:29,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:11:29,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:11:29,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:11:29,997 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:11:29,998 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:11:30,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure1.wvr.c [2023-08-29 19:11:31,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:11:31,415 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:11:31,415 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1.wvr.c [2023-08-29 19:11:31,421 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078437292/00c36c8d516e4b2a94275d4dfe9a61ef/FLAG4acc067bd [2023-08-29 19:11:31,434 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078437292/00c36c8d516e4b2a94275d4dfe9a61ef [2023-08-29 19:11:31,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:11:31,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:11:31,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:11:31,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:11:31,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:11:31,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d7e52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31, skipping insertion in model container [2023-08-29 19:11:31,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:11:31,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:11:31,605 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1.wvr.c[1991,2004] [2023-08-29 19:11:31,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:11:31,615 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:11:31,644 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure1.wvr.c[1991,2004] [2023-08-29 19:11:31,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:11:31,654 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:11:31,655 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:11:31,660 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:11:31,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31 WrapperNode [2023-08-29 19:11:31,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:11:31,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:11:31,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:11:31,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:11:31,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,710 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2023-08-29 19:11:31,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:11:31,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:11:31,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:11:31,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:11:31,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:11:31,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:11:31,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:11:31,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:11:31,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (1/1) ... [2023-08-29 19:11:31,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:11:31,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:11:31,798 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) [2023-08-29 19:11:31,842 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 [2023-08-29 19:11:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:11:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:11:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:11:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:11:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:11:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:11:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:11:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:11:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:11:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:11:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:11:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:11:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:11:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:11:31,870 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:11:31,972 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:11:31,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:11:32,199 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:11:32,256 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:11:32,256 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 19:11:32,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:11:32 BoogieIcfgContainer [2023-08-29 19:11:32,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:11:32,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:11:32,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:11:32,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:11:32,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:11:31" (1/3) ... [2023-08-29 19:11:32,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572df96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:11:32, skipping insertion in model container [2023-08-29 19:11:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:31" (2/3) ... [2023-08-29 19:11:32,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572df96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:11:32, skipping insertion in model container [2023-08-29 19:11:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:11:32" (3/3) ... [2023-08-29 19:11:32,273 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure1.wvr.c [2023-08-29 19:11:32,280 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:11:32,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:11:32,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-29 19:11:32,294 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:11:32,339 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 19:11:32,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 102 transitions, 220 flow [2023-08-29 19:11:32,440 INFO L130 PetriNetUnfolder]: 5/100 cut-off events. [2023-08-29 19:11:32,440 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:11:32,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 5/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 19:11:32,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 102 transitions, 220 flow [2023-08-29 19:11:32,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 85 transitions, 182 flow [2023-08-29 19:11:32,454 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:11:32,471 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 85 transitions, 182 flow [2023-08-29 19:11:32,475 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 85 transitions, 182 flow [2023-08-29 19:11:32,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 182 flow [2023-08-29 19:11:32,496 INFO L130 PetriNetUnfolder]: 4/85 cut-off events. [2023-08-29 19:11:32,498 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:11:32,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 4/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-29 19:11:32,501 INFO L119 LiptonReduction]: Number of co-enabled transitions 1506 [2023-08-29 19:11:34,699 INFO L134 LiptonReduction]: Checked pairs total: 3546 [2023-08-29 19:11:34,699 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-08-29 19:11:34,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:11:34,717 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;@33d53279, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:11:34,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-29 19:11:34,718 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:11:34,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:11:34,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:11:34,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:11:34,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-08-29 19:11:34,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:11:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 432, now seen corresponding path program 1 times [2023-08-29 19:11:34,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:11:34,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392072927] [2023-08-29 19:11:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:11:34,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:11:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:11:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:11:34,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:11:34,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392072927] [2023-08-29 19:11:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392072927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:11:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:11:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:11:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353848850] [2023-08-29 19:11:34,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:11:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:11:34,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:11:34,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:11:34,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:11:34,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 183 [2023-08-29 19:11:34,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 74 flow. Second operand has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 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) [2023-08-29 19:11:34,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:11:34,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 183 [2023-08-29 19:11:34,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:11:34,896 INFO L130 PetriNetUnfolder]: 44/100 cut-off events. [2023-08-29 19:11:34,896 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 19:11:34,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 100 events. 44/100 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 352 event pairs, 18 based on Foata normal form. 24/102 useless extension candidates. Maximal degree in co-relation 144. Up to 73 conditions per place. [2023-08-29 19:11:34,900 INFO L137 encePairwiseOnDemand]: 172/183 looper letters, 11 selfloop transitions, 0 changer transitions 1/20 dead transitions. [2023-08-29 19:11:34,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 76 flow [2023-08-29 19:11:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:11:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:11:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 197 transitions. [2023-08-29 19:11:34,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5382513661202186 [2023-08-29 19:11:34,918 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 197 transitions. [2023-08-29 19:11:34,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 197 transitions. [2023-08-29 19:11:34,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:11:34,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 197 transitions. [2023-08-29 19:11:34,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 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) [2023-08-29 19:11:34,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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) [2023-08-29 19:11:34,940 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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) [2023-08-29 19:11:34,942 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 74 flow. Second operand 2 states and 197 transitions. [2023-08-29 19:11:34,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 76 flow [2023-08-29 19:11:34,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 68 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:11:34,946 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 41 flow [2023-08-29 19:11:34,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=41, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-08-29 19:11:34,951 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -12 predicate places. [2023-08-29 19:11:34,951 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 41 flow [2023-08-29 19:11:34,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 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) [2023-08-29 19:11:34,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:11:34,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 19:11:34,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:11:34,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-08-29 19:11:34,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:11:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash 409611411, now seen corresponding path program 1 times [2023-08-29 19:11:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:11:34,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470303425] [2023-08-29 19:11:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:11:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:11:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:11:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:11:35,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:11:35,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470303425] [2023-08-29 19:11:35,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470303425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:11:35,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:11:35,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:11:35,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650781574] [2023-08-29 19:11:35,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:11:35,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:11:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:11:35,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:11:35,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:11:35,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 183 [2023-08-29 19:11:35,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-08-29 19:11:35,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:11:35,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 183 [2023-08-29 19:11:35,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:11:35,110 INFO L130 PetriNetUnfolder]: 96/169 cut-off events. [2023-08-29 19:11:35,111 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 19:11:35,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 169 events. 96/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 496 event pairs, 32 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 342. Up to 162 conditions per place. [2023-08-29 19:11:35,111 INFO L137 encePairwiseOnDemand]: 179/183 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-08-29 19:11:35,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 88 flow [2023-08-29 19:11:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:11:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:11:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-29 19:11:35,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4772313296903461 [2023-08-29 19:11:35,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-29 19:11:35,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-29 19:11:35,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:11:35,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-29 19:11:35,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-08-29 19:11:35,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-29 19:11:35,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-29 19:11:35,129 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 41 flow. Second operand 3 states and 262 transitions. [2023-08-29 19:11:35,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 88 flow [2023-08-29 19:11:35,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 22 transitions, 88 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:11:35,130 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2023-08-29 19:11:35,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2023-08-29 19:11:35,131 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -13 predicate places. [2023-08-29 19:11:35,131 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2023-08-29 19:11:35,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-08-29 19:11:35,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2023-08-29 19:11:35,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2023-08-29 19:11:35,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2023-08-29 19:11:35,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2023-08-29 19:11:35,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2023-08-29 19:11:35,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2023-08-29 19:11:35,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2023-08-29 19:11:35,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2023-08-29 19:11:35,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2023-08-29 19:11:35,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2023-08-29 19:11:35,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2023-08-29 19:11:35,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-29 19:11:35,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2023-08-29 19:11:35,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2023-08-29 19:11:35,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2023-08-29 19:11:35,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2023-08-29 19:11:35,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2023-08-29 19:11:35,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2023-08-29 19:11:35,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2023-08-29 19:11:35,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2023-08-29 19:11:35,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:11:35,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 19:11:35,150 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 19:11:35,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 19:11:35,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:11:35 BasicIcfg [2023-08-29 19:11:35,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 19:11:35,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 19:11:35,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 19:11:35,154 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 19:11:35,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:11:32" (3/4) ... [2023-08-29 19:11:35,156 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 19:11:35,159 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 19:11:35,159 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 19:11:35,162 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-29 19:11:35,163 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 19:11:35,163 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 19:11:35,163 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 19:11:35,201 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 19:11:35,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 19:11:35,202 INFO L158 Benchmark]: Toolchain (without parser) took 3764.87ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 44.3MB in the beginning and 37.6MB in the end (delta: 6.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,202 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:11:35,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.41ms. Allocated memory is still 67.1MB. Free memory was 44.1MB in the beginning and 33.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.96ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,203 INFO L158 Benchmark]: Boogie Preprocessor took 48.89ms. Allocated memory is still 67.1MB. Free memory was 31.3MB in the beginning and 47.6MB in the end (delta: -16.3MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,203 INFO L158 Benchmark]: RCFGBuilder took 505.53ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 29.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,204 INFO L158 Benchmark]: TraceAbstraction took 2884.95ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 28.4MB in the beginning and 40.2MB in the end (delta: -11.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,204 INFO L158 Benchmark]: Witness Printer took 47.90ms. Allocated memory is still 81.8MB. Free memory was 40.2MB in the beginning and 37.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:11:35,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.41ms. Allocated memory is still 67.1MB. Free memory was 44.1MB in the beginning and 33.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.96ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.89ms. Allocated memory is still 67.1MB. Free memory was 31.3MB in the beginning and 47.6MB in the end (delta: -16.3MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * RCFGBuilder took 505.53ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 29.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2884.95ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 28.4MB in the beginning and 40.2MB in the end (delta: -11.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 47.90ms. Allocated memory is still 81.8MB. Free memory was 40.2MB in the beginning and 37.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 88 PlacesBefore, 34 PlacesAfterwards, 85 TransitionsBefore, 31 TransitionsAfterwards, 1506 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 81 TotalNumberOfCompositions, 3546 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2320, independent: 2195, independent conditional: 0, independent unconditional: 2195, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 904, independent: 886, independent conditional: 0, independent unconditional: 886, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2320, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 904, unknown conditional: 0, unknown unconditional: 904] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 129 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 19:11:35,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE