./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i --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/goblint-regression/04-mutex_20-stdfun_rc.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 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 --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 17:28:57,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:28:57,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:28:57,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:28:57,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:28:57,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:28:57,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:28:57,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:28:57,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:28:57,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:28:57,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:28:57,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:28:57,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:28:57,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:28:57,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:28:57,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:28:57,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:28:57,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:28:57,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:28:57,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:28:57,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:28:57,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:28:57,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:28:57,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:28:57,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:28:57,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:28:57,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:28:57,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:28:57,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:28:57,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:28:57,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:28:57,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:28:57,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:28:57,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:28:57,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:28:57,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:28:57,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:28:57,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:28:57,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:28:57,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:28:57,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:28:57,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:28:57,766 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:28:57,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:28:57,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:28:57,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:28:57,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:28:57,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:28:57,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:28:57,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:28:57,769 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:28:57,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:28:57,770 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:28:57,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:28:57,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:28:57,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:28:57,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:28:57,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:28:57,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:28:57,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:28:57,772 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:28:57,772 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:28:57,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:28:57,772 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:28:57,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:28:57,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:28:57,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:28:57,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:28:57,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:57,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:28:57,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:28:57,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:28:57,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:28:57,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:28:57,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:28:57,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:28:57,774 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:28:57,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:28:57,775 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:28:57,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:28:58,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:28:58,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:28:58,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:28:58,081 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:28:58,082 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:28:58,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-29 17:28:59,185 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:28:59,401 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:28:59,401 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-29 17:28:59,420 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fa174e0/1d8476f146f449f88c1f7abd6303ef6f/FLAG4fc115cc1 [2023-08-29 17:28:59,440 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fa174e0/1d8476f146f449f88c1f7abd6303ef6f [2023-08-29 17:28:59,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:28:59,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:28:59,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:59,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:28:59,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:28:59,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:59" (1/1) ... [2023-08-29 17:28:59,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5077f41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:59, skipping insertion in model container [2023-08-29 17:28:59,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:59" (1/1) ... [2023-08-29 17:28:59,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:28:59,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:28:59,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:59,918 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:28:59,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:00,022 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:29:00,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00 WrapperNode [2023-08-29 17:29:00,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:00,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:00,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:29:00,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:29:00,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,086 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-08-29 17:29:00,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:00,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:29:00,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:29:00,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:29:00,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,127 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:29:00,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:29:00,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:29:00,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:29:00,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (1/1) ... [2023-08-29 17:29:00,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:00,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:29:00,174 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 17:29:00,208 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 17:29:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:29:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:29:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:29:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:29:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:29:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:29:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:29:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:29:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:29:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:29:00,227 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 17:29:00,393 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:29:00,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:29:00,564 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:29:00,573 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:29:00,574 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:29:00,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:00 BoogieIcfgContainer [2023-08-29 17:29:00,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:29:00,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:29:00,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:29:00,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:29:00,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:28:59" (1/3) ... [2023-08-29 17:29:00,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755373c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:00, skipping insertion in model container [2023-08-29 17:29:00,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:00" (2/3) ... [2023-08-29 17:29:00,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755373c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:00, skipping insertion in model container [2023-08-29 17:29:00,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:00" (3/3) ... [2023-08-29 17:29:00,584 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2023-08-29 17:29:00,591 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:29:00,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:29:00,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 17:29:00,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:29:00,673 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:29:00,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 109 flow [2023-08-29 17:29:00,755 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-29 17:29:00,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:29:00,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 52 transitions, 109 flow [2023-08-29 17:29:00,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-08-29 17:29:00,766 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:29:00,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-29 17:29:00,788 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-29 17:29:00,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-08-29 17:29:00,820 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-29 17:29:00,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:00,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:29:00,822 INFO L119 LiptonReduction]: Number of co-enabled transitions 720 [2023-08-29 17:29:01,807 INFO L134 LiptonReduction]: Checked pairs total: 2819 [2023-08-29 17:29:01,807 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-08-29 17:29:01,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:29:01,824 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;@6446382c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:29:01,824 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-29 17:29:01,828 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-29 17:29:01,828 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:01,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:01,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:01,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 17:29:01,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:01,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1789488394, now seen corresponding path program 1 times [2023-08-29 17:29:01,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:01,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024976942] [2023-08-29 17:29:01,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:01,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:02,453 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 17:29:02,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:02,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024976942] [2023-08-29 17:29:02,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024976942] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:02,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:02,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:29:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841421176] [2023-08-29 17:29:02,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:02,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:29:02,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:02,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:29:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:29:02,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2023-08-29 17:29:02,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 6 states, 6 states have (on average 35.333333333333336) internal successors, (212), 6 states have internal predecessors, (212), 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 17:29:02,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:02,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2023-08-29 17:29:02,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:02,749 INFO L130 PetriNetUnfolder]: 131/322 cut-off events. [2023-08-29 17:29:02,749 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:02,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 322 events. 131/322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1474 event pairs, 43 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 612. Up to 157 conditions per place. [2023-08-29 17:29:02,758 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 44 selfloop transitions, 25 changer transitions 0/71 dead transitions. [2023-08-29 17:29:02,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 71 transitions, 283 flow [2023-08-29 17:29:02,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:29:02,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:29:02,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 274 transitions. [2023-08-29 17:29:02,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2023-08-29 17:29:02,770 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 274 transitions. [2023-08-29 17:29:02,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 274 transitions. [2023-08-29 17:29:02,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:02,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 274 transitions. [2023-08-29 17:29:02,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 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 17:29:02,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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 17:29:02,780 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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 17:29:02,781 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 6 states and 274 transitions. [2023-08-29 17:29:02,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 71 transitions, 283 flow [2023-08-29 17:29:02,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 71 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:02,785 INFO L231 Difference]: Finished difference. Result has 35 places, 49 transitions, 218 flow [2023-08-29 17:29:02,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=35, PETRI_TRANSITIONS=49} [2023-08-29 17:29:02,790 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2023-08-29 17:29:02,790 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 49 transitions, 218 flow [2023-08-29 17:29:02,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.333333333333336) internal successors, (212), 6 states have internal predecessors, (212), 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 17:29:02,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:02,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:02,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:29:02,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 17:29:02,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:02,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2101057688, now seen corresponding path program 1 times [2023-08-29 17:29:02,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:02,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186719651] [2023-08-29 17:29:02,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:02,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:02,957 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 17:29:02,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:02,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186719651] [2023-08-29 17:29:02,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186719651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:02,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:02,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:29:02,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542407823] [2023-08-29 17:29:02,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:02,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:29:02,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:02,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:29:02,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:29:03,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 80 [2023-08-29 17:29:03,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 49 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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 17:29:03,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:03,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 80 [2023-08-29 17:29:03,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:03,191 INFO L130 PetriNetUnfolder]: 229/521 cut-off events. [2023-08-29 17:29:03,192 INFO L131 PetriNetUnfolder]: For 249/256 co-relation queries the response was YES. [2023-08-29 17:29:03,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 521 events. 229/521 cut-off events. For 249/256 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2569 event pairs, 54 based on Foata normal form. 22/543 useless extension candidates. Maximal degree in co-relation 1500. Up to 300 conditions per place. [2023-08-29 17:29:03,197 INFO L137 encePairwiseOnDemand]: 64/80 looper letters, 74 selfloop transitions, 46 changer transitions 2/124 dead transitions. [2023-08-29 17:29:03,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 124 transitions, 738 flow [2023-08-29 17:29:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:29:03,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:29:03,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 272 transitions. [2023-08-29 17:29:03,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-08-29 17:29:03,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 272 transitions. [2023-08-29 17:29:03,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 272 transitions. [2023-08-29 17:29:03,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:03,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 272 transitions. [2023-08-29 17:29:03,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 states have internal predecessors, (272), 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 17:29:03,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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 17:29:03,203 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 80.0) internal successors, (560), 7 states have internal predecessors, (560), 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 17:29:03,203 INFO L175 Difference]: Start difference. First operand has 35 places, 49 transitions, 218 flow. Second operand 6 states and 272 transitions. [2023-08-29 17:29:03,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 124 transitions, 738 flow [2023-08-29 17:29:03,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 124 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:03,209 INFO L231 Difference]: Finished difference. Result has 44 places, 93 transitions, 609 flow [2023-08-29 17:29:03,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=44, PETRI_TRANSITIONS=93} [2023-08-29 17:29:03,210 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2023-08-29 17:29:03,210 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 93 transitions, 609 flow [2023-08-29 17:29:03,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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 17:29:03,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:03,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:03,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:29:03,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 17:29:03,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:03,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1934754265, now seen corresponding path program 1 times [2023-08-29 17:29:03,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:03,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712777886] [2023-08-29 17:29:03,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:03,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:29:03,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:29:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:29:03,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:29:03,259 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:29:03,260 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-29 17:29:03,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-29 17:29:03,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-29 17:29:03,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-29 17:29:03,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-29 17:29:03,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-29 17:29:03,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:29:03,263 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 17:29:03,268 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:29:03,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:29:03,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:29:03 BasicIcfg [2023-08-29 17:29:03,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:29:03,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:29:03,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:29:03,288 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:29:03,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:00" (3/4) ... [2023-08-29 17:29:03,290 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:29:03,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:29:03,291 INFO L158 Benchmark]: Toolchain (without parser) took 3847.11ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 42.3MB in the beginning and 76.9MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:03,291 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 34.7MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:03,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.45ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 32.5MB in the end (delta: 9.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-08-29 17:29:03,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.10ms. Allocated memory is still 71.3MB. Free memory was 32.5MB in the beginning and 30.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:03,293 INFO L158 Benchmark]: Boogie Preprocessor took 46.34ms. Allocated memory is still 71.3MB. Free memory was 30.4MB in the beginning and 29.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:03,293 INFO L158 Benchmark]: RCFGBuilder took 441.58ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 40.2MB in the end (delta: -11.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 17:29:03,294 INFO L158 Benchmark]: TraceAbstraction took 2708.45ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 39.5MB in the beginning and 76.9MB in the end (delta: -37.4MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2023-08-29 17:29:03,294 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 104.9MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:03,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 34.7MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.45ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 32.5MB in the end (delta: 9.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.10ms. Allocated memory is still 71.3MB. Free memory was 32.5MB in the beginning and 30.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.34ms. Allocated memory is still 71.3MB. Free memory was 30.4MB in the beginning and 29.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.58ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 40.2MB in the end (delta: -11.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2708.45ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 39.5MB in the beginning and 76.9MB in the end (delta: -37.4MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 104.9MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 55 PlacesBefore, 27 PlacesAfterwards, 51 TransitionsBefore, 23 TransitionsAfterwards, 720 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 2819 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 716, independent: 497, independent conditional: 0, independent unconditional: 497, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 319, independent: 289, independent conditional: 0, independent unconditional: 289, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 716, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 319, unknown conditional: 0, unknown unconditional: 319] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id; [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, myglobal={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L919] EXPR 1 \read(myglobal) VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] Now there is a data race (on the heap) between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 919]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 6 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 24 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=609occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.6s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 17:29:03,321 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE