./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:57:34,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:57:34,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:57:34,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:57:34,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:57:34,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:57:34,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:57:34,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:57:34,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:57:34,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:57:34,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:57:34,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:57:34,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:57:34,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:57:34,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:57:34,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:57:34,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:57:34,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:57:34,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:57:34,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:57:34,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:57:34,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:57:34,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:57:34,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:57:34,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:57:34,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:57:34,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:57:34,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:57:34,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:57:34,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:57:34,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:57:34,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:57:34,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:57:34,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:57:34,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:57:34,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:57:34,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:57:34,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:57:34,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:57:34,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:57:34,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:57:34,542 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:57:34,570 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:57:34,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:57:34,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:57:34,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:57:34,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:57:34,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:57:34,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:57:34,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:57:34,574 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:57:34,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:57:34,574 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:57:34,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:57:34,576 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:57:34,576 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:57:34,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:57:34,576 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:57:34,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:57:34,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:57:34,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:57:34,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:57:34,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:34,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:57:34,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:57:34,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:57:34,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:57:34,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:57:34,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:57:34,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:57:34,578 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:57:34,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:57:34,578 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:57:34,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:57:34,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:57:34,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:57:34,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:57:34,830 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:57:34,830 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:57:34,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-31 19:57:35,773 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:57:35,959 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:57:35,960 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-31 19:57:35,970 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c92e836/294afb16cbfe407dbc739286483598e0/FLAG41b64dbef [2023-08-31 19:57:35,986 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c92e836/294afb16cbfe407dbc739286483598e0 [2023-08-31 19:57:35,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:57:35,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:57:35,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:35,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:57:35,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:57:35,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:35" (1/1) ... [2023-08-31 19:57:35,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37da409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:35, skipping insertion in model container [2023-08-31 19:57:35,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:35" (1/1) ... [2023-08-31 19:57:36,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:57:36,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:57:36,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:36,361 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:57:36,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:36,454 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:57:36,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36 WrapperNode [2023-08-31 19:57:36,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:36,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:36,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:57:36,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:57:36,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,501 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-08-31 19:57:36,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:36,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:57:36,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:57:36,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:57:36,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:57:36,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:57:36,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:57:36,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:57:36,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (1/1) ... [2023-08-31 19:57:36,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:36,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:57:36,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:57:36,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:57:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:57:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:57:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:57:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:57:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:57:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:57:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:57:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:57:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:57:36,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:57:36,590 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:57:36,722 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:57:36,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:57:36,811 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:57:36,815 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:57:36,816 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:57:36,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:36 BoogieIcfgContainer [2023-08-31 19:57:36,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:57:36,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:57:36,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:57:36,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:57:36,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:57:35" (1/3) ... [2023-08-31 19:57:36,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20483384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:36, skipping insertion in model container [2023-08-31 19:57:36,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:36" (2/3) ... [2023-08-31 19:57:36,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20483384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:36, skipping insertion in model container [2023-08-31 19:57:36,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:36" (3/3) ... [2023-08-31 19:57:36,822 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2023-08-31 19:57:36,827 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:57:36,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:57:36,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-31 19:57:36,834 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:57:36,872 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:57:36,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 109 flow [2023-08-31 19:57:36,912 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-31 19:57:36,913 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:36,915 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. [2023-08-31 19:57:36,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 52 transitions, 109 flow [2023-08-31 19:57:36,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-08-31 19:57:36,919 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:57:36,924 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-31 19:57:36,926 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-31 19:57:36,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-08-31 19:57:36,935 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-31 19:57:36,935 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:36,935 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. [2023-08-31 19:57:36,936 INFO L119 LiptonReduction]: Number of co-enabled transitions 720 [2023-08-31 19:57:37,714 INFO L134 LiptonReduction]: Checked pairs total: 2819 [2023-08-31 19:57:37,714 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-08-31 19:57:37,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:57:37,737 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;@24ce20f9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:57:37,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-31 19:57:37,743 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-31 19:57:37,743 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:37,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:37,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:37,744 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)] === [2023-08-31 19:57:37,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:37,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1789488394, now seen corresponding path program 1 times [2023-08-31 19:57:37,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:37,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499817770] [2023-08-31 19:57:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:37,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:38,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:38,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499817770] [2023-08-31 19:57:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499817770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:38,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:38,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:57:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492465538] [2023-08-31 19:57:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:38,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:57:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:38,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:57:38,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:57:38,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2023-08-31 19:57:38,283 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) [2023-08-31 19:57:38,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:38,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2023-08-31 19:57:38,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:38,406 INFO L130 PetriNetUnfolder]: 131/322 cut-off events. [2023-08-31 19:57:38,407 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:38,409 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. [2023-08-31 19:57:38,412 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 44 selfloop transitions, 25 changer transitions 0/71 dead transitions. [2023-08-31 19:57:38,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 71 transitions, 283 flow [2023-08-31 19:57:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:57:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:57:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 274 transitions. [2023-08-31 19:57:38,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2023-08-31 19:57:38,427 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 274 transitions. [2023-08-31 19:57:38,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 274 transitions. [2023-08-31 19:57:38,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:38,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 274 transitions. [2023-08-31 19:57:38,434 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) [2023-08-31 19:57:38,436 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) [2023-08-31 19:57:38,437 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) [2023-08-31 19:57:38,438 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 6 states and 274 transitions. [2023-08-31 19:57:38,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 71 transitions, 283 flow [2023-08-31 19:57:38,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 71 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:38,442 INFO L231 Difference]: Finished difference. Result has 35 places, 49 transitions, 218 flow [2023-08-31 19:57:38,443 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} [2023-08-31 19:57:38,446 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2023-08-31 19:57:38,446 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 49 transitions, 218 flow [2023-08-31 19:57:38,446 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) [2023-08-31 19:57:38,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:38,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:38,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:57:38,446 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)] === [2023-08-31 19:57:38,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:38,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2101057688, now seen corresponding path program 1 times [2023-08-31 19:57:38,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:38,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103261972] [2023-08-31 19:57:38,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:38,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:38,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103261972] [2023-08-31 19:57:38,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103261972] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:38,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:38,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:57:38,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382945673] [2023-08-31 19:57:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:38,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:57:38,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:57:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:57:38,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 80 [2023-08-31 19:57:38,726 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) [2023-08-31 19:57:38,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:38,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 80 [2023-08-31 19:57:38,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:38,848 INFO L130 PetriNetUnfolder]: 229/521 cut-off events. [2023-08-31 19:57:38,848 INFO L131 PetriNetUnfolder]: For 249/256 co-relation queries the response was YES. [2023-08-31 19:57:38,850 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. [2023-08-31 19:57:38,852 INFO L137 encePairwiseOnDemand]: 64/80 looper letters, 74 selfloop transitions, 46 changer transitions 2/124 dead transitions. [2023-08-31 19:57:38,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 124 transitions, 738 flow [2023-08-31 19:57:38,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:57:38,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:57:38,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 272 transitions. [2023-08-31 19:57:38,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-08-31 19:57:38,853 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 272 transitions. [2023-08-31 19:57:38,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 272 transitions. [2023-08-31 19:57:38,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:38,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 272 transitions. [2023-08-31 19:57:38,854 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) [2023-08-31 19:57:38,855 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) [2023-08-31 19:57:38,855 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) [2023-08-31 19:57:38,856 INFO L175 Difference]: Start difference. First operand has 35 places, 49 transitions, 218 flow. Second operand 6 states and 272 transitions. [2023-08-31 19:57:38,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 124 transitions, 738 flow [2023-08-31 19:57:38,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 124 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:57:38,859 INFO L231 Difference]: Finished difference. Result has 44 places, 93 transitions, 609 flow [2023-08-31 19:57:38,859 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} [2023-08-31 19:57:38,860 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2023-08-31 19:57:38,860 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 93 transitions, 609 flow [2023-08-31 19:57:38,860 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) [2023-08-31 19:57:38,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:38,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:38,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:57:38,861 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)] === [2023-08-31 19:57:38,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:38,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1934754265, now seen corresponding path program 1 times [2023-08-31 19:57:38,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406282188] [2023-08-31 19:57:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:57:38,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:57:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:57:38,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:57:38,889 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:57:38,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-31 19:57:38,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-31 19:57:38,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-31 19:57:38,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-31 19:57:38,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-31 19:57:38,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-31 19:57:38,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:57:38,892 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-31 19:57:38,896 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:57:38,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:57:38,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:57:38 BasicIcfg [2023-08-31 19:57:38,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:57:38,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:57:38,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:57:38,910 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:57:38,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:36" (3/4) ... [2023-08-31 19:57:38,912 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:57:38,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:57:38,912 INFO L158 Benchmark]: Toolchain (without parser) took 2923.76ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 59.7MB in the beginning and 36.0MB in the end (delta: 23.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-08-31 19:57:38,913 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:38,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.70ms. Allocated memory is still 81.8MB. Free memory was 59.5MB in the beginning and 52.4MB in the end (delta: 7.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:38,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.01ms. Allocated memory is still 81.8MB. Free memory was 52.4MB in the beginning and 50.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:38,914 INFO L158 Benchmark]: Boogie Preprocessor took 36.87ms. Allocated memory is still 81.8MB. Free memory was 50.3MB in the beginning and 48.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:38,914 INFO L158 Benchmark]: RCFGBuilder took 277.58ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 36.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 19:57:38,914 INFO L158 Benchmark]: TraceAbstraction took 2091.23ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 35.6MB in the beginning and 36.0MB in the end (delta: -399.6kB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:38,915 INFO L158 Benchmark]: Witness Printer took 2.25ms. Allocated memory is still 98.6MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:38,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.70ms. Allocated memory is still 81.8MB. Free memory was 59.5MB in the beginning and 52.4MB in the end (delta: 7.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.01ms. Allocated memory is still 81.8MB. Free memory was 52.4MB in the beginning and 50.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.87ms. Allocated memory is still 81.8MB. Free memory was 50.3MB in the beginning and 48.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.58ms. Allocated memory is still 81.8MB. Free memory was 48.6MB in the beginning and 36.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2091.23ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 35.6MB in the beginning and 36.0MB in the end (delta: -399.6kB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 2.25ms. Allocated memory is still 98.6MB. Free memory is still 36.0MB. 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: 0.8s, 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.2s 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, 0.0s 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, 0.1s SatisfiabilityAnalysisTime, 0.5s 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! [2023-08-31 19:57:38,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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