./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.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/13-privatized_19-publish-precision_unknown_2_neg.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 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 --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 20:39:11,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:39:11,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:39:11,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:39:11,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:39:11,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:39:11,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:39:11,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:39:11,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:39:11,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:39:11,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:39:11,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:39:11,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:39:11,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:39:11,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:39:11,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:39:11,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:39:11,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:39:11,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:39:11,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:39:11,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:39:11,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:39:11,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:39:11,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:39:11,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:39:11,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:39:11,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:39:11,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:39:11,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:39:11,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:39:11,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:39:11,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:39:11,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:39:11,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:39:11,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:39:11,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:39:11,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:39:11,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:39:11,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:39:11,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:39:11,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:39:11,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:39:11,372 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:39:11,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:39:11,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:39:11,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:39:11,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:39:11,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:39:11,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:39:11,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:39:11,376 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:39:11,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:39:11,377 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:39:11,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:39:11,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:39:11,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:39:11,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:39:11,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:39:11,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:39:11,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:39:11,379 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:39:11,379 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:39:11,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:39:11,380 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:39:11,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:39:11,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:39:11,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:39:11,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:39:11,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:39:11,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:39:11,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:39:11,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:39:11,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:39:11,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:39:11,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:39:11,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:39:11,382 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:39:11,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:39:11,383 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:39:11,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 206329ef329d64f7988adf458616b48a8b2bd496b77406b1382ed58ed18734a7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:39:11,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:39:11,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:39:11,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:39:11,713 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:39:11,714 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:39:11,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2023-08-31 20:39:12,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:39:13,093 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:39:13,094 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2023-08-31 20:39:13,106 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6ce6826/082ea6711cdf4164b21b21d571b9cc7c/FLAG677bbe61f [2023-08-31 20:39:13,117 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6ce6826/082ea6711cdf4164b21b21d571b9cc7c [2023-08-31 20:39:13,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:39:13,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:39:13,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:39:13,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:39:13,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:39:13,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b41e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13, skipping insertion in model container [2023-08-31 20:39:13,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:39:13,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:39:13,319 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2023-08-31 20:39:13,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:39:13,492 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:39:13,503 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2023-08-31 20:39:13,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:39:13,601 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:39:13,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13 WrapperNode [2023-08-31 20:39:13,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:39:13,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:39:13,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:39:13,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:39:13,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,654 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-31 20:39:13,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:39:13,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:39:13,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:39:13,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:39:13,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:39:13,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:39:13,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:39:13,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:39:13,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (1/1) ... [2023-08-31 20:39:13,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:39:13,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:39:13,721 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 20:39:13,745 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 20:39:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:39:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:39:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:39:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:39:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:39:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:39:13,758 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:39:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:39:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:39:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:39:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:39:13,760 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 20:39:13,925 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:39:13,926 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:39:14,078 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:39:14,084 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:39:14,084 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:39:14,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:14 BoogieIcfgContainer [2023-08-31 20:39:14,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:39:14,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:39:14,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:39:14,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:39:14,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:39:13" (1/3) ... [2023-08-31 20:39:14,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405a3c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:39:14, skipping insertion in model container [2023-08-31 20:39:14,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:39:13" (2/3) ... [2023-08-31 20:39:14,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405a3c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:39:14, skipping insertion in model container [2023-08-31 20:39:14,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:14" (3/3) ... [2023-08-31 20:39:14,093 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2023-08-31 20:39:14,099 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:39:14,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:39:14,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 20:39:14,114 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:39:14,166 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 20:39:14,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 174 flow [2023-08-31 20:39:14,230 INFO L130 PetriNetUnfolder]: 1/82 cut-off events. [2023-08-31 20:39:14,230 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 20:39:14,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 1/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-08-31 20:39:14,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 174 flow [2023-08-31 20:39:14,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:14,240 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:39:14,247 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:14,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:14,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 153 flow [2023-08-31 20:39:14,277 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2023-08-31 20:39:14,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:14,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 1/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-08-31 20:39:14,281 INFO L119 LiptonReduction]: Number of co-enabled transitions 1056 [2023-08-31 20:39:16,468 INFO L134 LiptonReduction]: Checked pairs total: 3616 [2023-08-31 20:39:16,468 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-31 20:39:16,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:39:16,485 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;@7a79a80b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:39:16,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 20:39:16,489 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-31 20:39:16,489 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:16,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:16,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 20:39:16,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:16,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash 270200568, now seen corresponding path program 1 times [2023-08-31 20:39:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:16,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838779660] [2023-08-31 20:39:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:16,705 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 20:39:16,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:16,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838779660] [2023-08-31 20:39:16,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838779660] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:16,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:16,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:16,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522427778] [2023-08-31 20:39:16,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:16,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:16,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:16,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:16,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 141 [2023-08-31 20:39:16,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 20:39:16,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:16,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 141 [2023-08-31 20:39:16,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:16,819 INFO L130 PetriNetUnfolder]: 98/263 cut-off events. [2023-08-31 20:39:16,824 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:39:16,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 263 events. 98/263 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1198 event pairs, 14 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 487. Up to 120 conditions per place. [2023-08-31 20:39:16,828 INFO L137 encePairwiseOnDemand]: 135/141 looper letters, 29 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2023-08-31 20:39:16,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 145 flow [2023-08-31 20:39:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-31 20:39:16,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.607565011820331 [2023-08-31 20:39:16,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-31 20:39:16,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-31 20:39:16,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:16,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-31 20:39:16,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 20:39:16,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:16,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:16,855 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 3 states and 257 transitions. [2023-08-31 20:39:16,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 145 flow [2023-08-31 20:39:16,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 38 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:16,858 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 80 flow [2023-08-31 20:39:16,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-08-31 20:39:16,865 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-08-31 20:39:16,865 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 80 flow [2023-08-31 20:39:16,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 20:39:16,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:16,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:16,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:39:16,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:16,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1943125819, now seen corresponding path program 1 times [2023-08-31 20:39:16,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:16,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681186590] [2023-08-31 20:39:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:16,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:16,975 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 20:39:16,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:16,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681186590] [2023-08-31 20:39:16,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681186590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:16,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:16,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:16,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63034421] [2023-08-31 20:39:16,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:16,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:16,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:16,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:16,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:16,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 141 [2023-08-31 20:39:16,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 20:39:16,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:16,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 141 [2023-08-31 20:39:16,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:17,071 INFO L130 PetriNetUnfolder]: 92/253 cut-off events. [2023-08-31 20:39:17,071 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2023-08-31 20:39:17,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 253 events. 92/253 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1099 event pairs, 66 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 531. Up to 197 conditions per place. [2023-08-31 20:39:17,076 INFO L137 encePairwiseOnDemand]: 137/141 looper letters, 23 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-31 20:39:17,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 152 flow [2023-08-31 20:39:17,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-08-31 20:39:17,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5721040189125296 [2023-08-31 20:39:17,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-08-31 20:39:17,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-08-31 20:39:17,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:17,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-08-31 20:39:17,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 20:39:17,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:17,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:17,087 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 80 flow. Second operand 3 states and 242 transitions. [2023-08-31 20:39:17,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 152 flow [2023-08-31 20:39:17,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 20:39:17,089 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 96 flow [2023-08-31 20:39:17,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-08-31 20:39:17,090 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-08-31 20:39:17,091 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 96 flow [2023-08-31 20:39:17,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 20:39:17,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:17,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:17,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:39:17,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:17,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:17,095 INFO L85 PathProgramCache]: Analyzing trace with hash 776675939, now seen corresponding path program 1 times [2023-08-31 20:39:17,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:17,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94458858] [2023-08-31 20:39:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:17,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:17,355 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 20:39:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94458858] [2023-08-31 20:39:17,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94458858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:17,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:17,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:17,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206502178] [2023-08-31 20:39:17,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:17,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:17,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:17,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:17,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 141 [2023-08-31 20:39:17,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 20:39:17,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:17,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 141 [2023-08-31 20:39:17,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:17,434 INFO L130 PetriNetUnfolder]: 66/194 cut-off events. [2023-08-31 20:39:17,435 INFO L131 PetriNetUnfolder]: For 73/76 co-relation queries the response was YES. [2023-08-31 20:39:17,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 194 events. 66/194 cut-off events. For 73/76 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 835 event pairs, 26 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 422. Up to 91 conditions per place. [2023-08-31 20:39:17,436 INFO L137 encePairwiseOnDemand]: 139/141 looper letters, 24 selfloop transitions, 1 changer transitions 2/37 dead transitions. [2023-08-31 20:39:17,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 176 flow [2023-08-31 20:39:17,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:17,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-31 20:39:17,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5886524822695035 [2023-08-31 20:39:17,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-31 20:39:17,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-31 20:39:17,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:17,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-31 20:39:17,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 20:39:17,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:17,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:17,441 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 96 flow. Second operand 3 states and 249 transitions. [2023-08-31 20:39:17,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 176 flow [2023-08-31 20:39:17,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:39:17,443 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 92 flow [2023-08-31 20:39:17,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2023-08-31 20:39:17,444 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-08-31 20:39:17,444 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 92 flow [2023-08-31 20:39:17,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 20:39:17,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:17,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:17,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:39:17,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:17,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:17,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1648797974, now seen corresponding path program 1 times [2023-08-31 20:39:17,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:17,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218718779] [2023-08-31 20:39:17,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:17,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:17,522 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 20:39:17,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:17,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218718779] [2023-08-31 20:39:17,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218718779] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:17,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:17,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 20:39:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166794380] [2023-08-31 20:39:17,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:17,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 20:39:17,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:17,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 20:39:17,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 20:39:17,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 141 [2023-08-31 20:39:17,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 20:39:17,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:17,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 141 [2023-08-31 20:39:17,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:17,622 INFO L130 PetriNetUnfolder]: 23/96 cut-off events. [2023-08-31 20:39:17,623 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-31 20:39:17,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 96 events. 23/96 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 7 based on Foata normal form. 12/108 useless extension candidates. Maximal degree in co-relation 206. Up to 51 conditions per place. [2023-08-31 20:39:17,623 INFO L137 encePairwiseOnDemand]: 134/141 looper letters, 11 selfloop transitions, 6 changer transitions 4/26 dead transitions. [2023-08-31 20:39:17,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 118 flow [2023-08-31 20:39:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 20:39:17,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 20:39:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2023-08-31 20:39:17,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5372340425531915 [2023-08-31 20:39:17,630 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 303 transitions. [2023-08-31 20:39:17,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 303 transitions. [2023-08-31 20:39:17,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:17,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 303 transitions. [2023-08-31 20:39:17,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 20:39:17,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 20:39:17,639 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 20:39:17,639 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 92 flow. Second operand 4 states and 303 transitions. [2023-08-31 20:39:17,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 118 flow [2023-08-31 20:39:17,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 107 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-31 20:39:17,641 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 65 flow [2023-08-31 20:39:17,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-08-31 20:39:17,643 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-31 20:39:17,643 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 65 flow [2023-08-31 20:39:17,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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 20:39:17,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:39:17,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:39:17,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:39:17,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:39:17,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:39:17,645 INFO L85 PathProgramCache]: Analyzing trace with hash -492133979, now seen corresponding path program 1 times [2023-08-31 20:39:17,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:39:17,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826154041] [2023-08-31 20:39:17,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:39:17,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:39:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:39:17,680 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 20:39:17,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:39:17,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826154041] [2023-08-31 20:39:17,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826154041] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:39:17,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:39:17,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:39:17,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293207660] [2023-08-31 20:39:17,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:39:17,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:39:17,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:39:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:39:17,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:39:17,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 141 [2023-08-31 20:39:17,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 20:39:17,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:39:17,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 141 [2023-08-31 20:39:17,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:39:17,717 INFO L130 PetriNetUnfolder]: 15/62 cut-off events. [2023-08-31 20:39:17,718 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 20:39:17,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 62 events. 15/62 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 128 event pairs, 12 based on Foata normal form. 3/64 useless extension candidates. Maximal degree in co-relation 143. Up to 50 conditions per place. [2023-08-31 20:39:17,718 INFO L137 encePairwiseOnDemand]: 139/141 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-31 20:39:17,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 99 flow [2023-08-31 20:39:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:39:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:39:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2023-08-31 20:39:17,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5484633569739953 [2023-08-31 20:39:17,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2023-08-31 20:39:17,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2023-08-31 20:39:17,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:39:17,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2023-08-31 20:39:17,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 20:39:17,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:17,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 20:39:17,722 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 65 flow. Second operand 3 states and 232 transitions. [2023-08-31 20:39:17,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 99 flow [2023-08-31 20:39:17,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 20:39:17,724 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-31 20:39:17,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-31 20:39:17,724 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2023-08-31 20:39:17,725 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-31 20:39:17,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 20:39:17,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 20:39:17,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 20:39:17,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-31 20:39:17,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-31 20:39:17,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 20:39:17,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 20:39:17,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 20:39:17,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:39:17,729 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 20:39:17,733 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:39:17,733 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:39:17,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:39:17 BasicIcfg [2023-08-31 20:39:17,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:39:17,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:39:17,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:39:17,737 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:39:17,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:39:14" (3/4) ... [2023-08-31 20:39:17,739 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:39:17,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:39:17,747 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-31 20:39:17,747 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 20:39:17,748 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:39:17,748 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 20:39:17,774 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:39:17,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:39:17,775 INFO L158 Benchmark]: Toolchain (without parser) took 4654.81ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.9MB in the beginning and 35.1MB in the end (delta: 14.8MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-08-31 20:39:17,775 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:17,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.32ms. Allocated memory is still 73.4MB. Free memory was 49.7MB in the beginning and 48.7MB in the end (delta: 994.3kB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-08-31 20:39:17,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.15ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 46.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:17,776 INFO L158 Benchmark]: Boogie Preprocessor took 30.86ms. Allocated memory is still 73.4MB. Free memory was 46.6MB in the beginning and 45.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:39:17,776 INFO L158 Benchmark]: RCFGBuilder took 396.48ms. Allocated memory is still 73.4MB. Free memory was 45.0MB in the beginning and 31.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 20:39:17,777 INFO L158 Benchmark]: TraceAbstraction took 3649.14ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 30.7MB in the beginning and 38.0MB in the end (delta: -7.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-08-31 20:39:17,777 INFO L158 Benchmark]: Witness Printer took 37.53ms. Allocated memory is still 88.1MB. Free memory was 38.0MB in the beginning and 35.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:39:17,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.32ms. Allocated memory is still 73.4MB. Free memory was 49.7MB in the beginning and 48.7MB in the end (delta: 994.3kB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.15ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 46.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.86ms. Allocated memory is still 73.4MB. Free memory was 46.6MB in the beginning and 45.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 396.48ms. Allocated memory is still 73.4MB. Free memory was 45.0MB in the beginning and 31.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3649.14ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 30.7MB in the beginning and 38.0MB in the end (delta: -7.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 37.53ms. Allocated memory is still 88.1MB. Free memory was 38.0MB in the beginning and 35.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 78 PlacesBefore, 29 PlacesAfterwards, 75 TransitionsBefore, 26 TransitionsAfterwards, 1056 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 3616 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1515, independent: 1279, independent conditional: 0, independent unconditional: 1279, dependent: 236, dependent conditional: 0, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 581, independent: 537, independent conditional: 0, independent unconditional: 537, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1515, independent: 742, independent conditional: 0, independent unconditional: 742, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 581, unknown conditional: 0, unknown unconditional: 581] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, 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 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 7 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: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 3 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:39:17,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE