./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.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/06-symbeq_09-tricky_address4.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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --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 20:06:03,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:06:03,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:06:03,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:06:03,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:06:03,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:06:03,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:06:03,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:06:03,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:06:03,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:06:03,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:06:03,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:06:03,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:06:03,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:06:03,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:06:03,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:06:03,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:06:03,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:06:03,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:06:03,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:06:03,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:06:03,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:06:03,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:06:03,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:06:03,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:06:03,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:06:03,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:06:03,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:06:03,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:06:03,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:06:03,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:06:03,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:06:03,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:06:03,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:06:03,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:06:03,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:06:03,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:06:03,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:06:03,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:06:03,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:06:03,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:06:03,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:06:03,433 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:06:03,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:06:03,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:06:03,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:06:03,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:06:03,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:06:03,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:06:03,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:06:03,436 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:06:03,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:06:03,437 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:06:03,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:06:03,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:06:03,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:06:03,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:06:03,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:06:03,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:06:03,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:06:03,438 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:06:03,438 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:06:03,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:06:03,439 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:06:03,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:06:03,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:06:03,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:06:03,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:06:03,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:06:03,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:06:03,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:06:03,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:06:03,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:06:03,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:06:03,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:06:03,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:06:03,441 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:06:03,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:06:03,441 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:06:03,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:06:03,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:06:03,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:06:03,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:06:03,736 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:06:03,737 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:06:03,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.i [2023-08-31 20:06:05,052 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:06:05,321 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:06:05,321 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_09-tricky_address4.i [2023-08-31 20:06:05,343 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccbe0180b/6947c9a90538428badc3cb78c41ff8ac/FLAG596342c72 [2023-08-31 20:06:05,364 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccbe0180b/6947c9a90538428badc3cb78c41ff8ac [2023-08-31 20:06:05,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:06:05,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:06:05,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:06:05,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:06:05,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:06:05,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:05,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ecf598e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05, skipping insertion in model container [2023-08-31 20:06:05,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:05,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:06:05,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:06:05,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:06:05,895 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:06:05,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:06:05,984 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:06:05,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05 WrapperNode [2023-08-31 20:06:05,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:06:05,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:06:05,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:06:05,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:06:05,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,030 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2023-08-31 20:06:06,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:06:06,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:06:06,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:06:06,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:06:06,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:06:06,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:06:06,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:06:06,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:06:06,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (1/1) ... [2023-08-31 20:06:06,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:06:06,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:06:06,102 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 20:06:06,124 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 20:06:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:06:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:06:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:06:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:06:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:06:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:06:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:06:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:06:06,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:06:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:06:06,143 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 20:06:06,255 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:06:06,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:06:06,520 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:06:06,545 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:06:06,545 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-31 20:06:06,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:06 BoogieIcfgContainer [2023-08-31 20:06:06,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:06:06,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:06:06,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:06:06,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:06:06,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:06:05" (1/3) ... [2023-08-31 20:06:06,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d524932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:06:06, skipping insertion in model container [2023-08-31 20:06:06,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:05" (2/3) ... [2023-08-31 20:06:06,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d524932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:06:06, skipping insertion in model container [2023-08-31 20:06:06,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:06" (3/3) ... [2023-08-31 20:06:06,555 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2023-08-31 20:06:06,562 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:06:06,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:06:06,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 20:06:06,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:06:06,677 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:06:06,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 101 transitions, 207 flow [2023-08-31 20:06:06,775 INFO L130 PetriNetUnfolder]: 4/100 cut-off events. [2023-08-31 20:06:06,775 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:06,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-31 20:06:06,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 101 transitions, 207 flow [2023-08-31 20:06:06,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 100 transitions, 203 flow [2023-08-31 20:06:06,789 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:06:06,802 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 100 transitions, 203 flow [2023-08-31 20:06:06,806 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 100 transitions, 203 flow [2023-08-31 20:06:06,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 100 transitions, 203 flow [2023-08-31 20:06:06,840 INFO L130 PetriNetUnfolder]: 4/100 cut-off events. [2023-08-31 20:06:06,840 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:06,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-08-31 20:06:06,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 2262 [2023-08-31 20:06:08,492 INFO L134 LiptonReduction]: Checked pairs total: 9365 [2023-08-31 20:06:08,493 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-31 20:06:08,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:06:08,511 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;@3650b863, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:06:08,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 20:06:08,516 INFO L130 PetriNetUnfolder]: 2/18 cut-off events. [2023-08-31 20:06:08,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:08,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:08,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:08,518 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 20:06:08,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash -628209357, now seen corresponding path program 1 times [2023-08-31 20:06:08,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:08,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440765574] [2023-08-31 20:06:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:08,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:08,713 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 20:06:08,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440765574] [2023-08-31 20:06:08,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440765574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:08,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:08,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:06:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294079361] [2023-08-31 20:06:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:08,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:06:08,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:08,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:06:08,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:06:08,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 176 [2023-08-31 20:06:08,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 20:06:08,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:08,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 176 [2023-08-31 20:06:08,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:08,821 INFO L130 PetriNetUnfolder]: 37/165 cut-off events. [2023-08-31 20:06:08,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:08,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 630 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place. [2023-08-31 20:06:08,824 INFO L137 encePairwiseOnDemand]: 172/176 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-31 20:06:08,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-08-31 20:06:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:06:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:06:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-31 20:06:08,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394 [2023-08-31 20:06:08,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-31 20:06:08,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-31 20:06:08,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:08,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-31 20:06:08,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 20:06:08,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 20:06:08,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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 20:06:08,850 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 79 flow. Second operand 3 states and 298 transitions. [2023-08-31 20:06:08,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-08-31 20:06:08,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:08,853 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-31 20:06:08,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-31 20:06:08,857 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-08-31 20:06:08,858 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-31 20:06:08,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 20:06:08,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:08,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:08,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:06:08,859 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 20:06:08,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash -369379357, now seen corresponding path program 1 times [2023-08-31 20:06:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663521610] [2023-08-31 20:06:08,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:08,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:08,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663521610] [2023-08-31 20:06:08,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663521610] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:06:08,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101307175] [2023-08-31 20:06:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:08,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:06:08,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:06:08,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:06:08,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 20:06:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:09,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 20:06:09,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:06:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:09,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:06:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:09,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101307175] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:06:09,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:06:09,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-31 20:06:09,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742013040] [2023-08-31 20:06:09,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:06:09,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:09,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:09,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:09,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:09,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 176 [2023-08-31 20:06:09,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 20:06:09,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:09,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 176 [2023-08-31 20:06:09,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:09,158 INFO L130 PetriNetUnfolder]: 37/168 cut-off events. [2023-08-31 20:06:09,158 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:09,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place. [2023-08-31 20:06:09,160 INFO L137 encePairwiseOnDemand]: 173/176 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-31 20:06:09,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-08-31 20:06:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:09,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2023-08-31 20:06:09,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5445075757575758 [2023-08-31 20:06:09,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2023-08-31 20:06:09,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2023-08-31 20:06:09,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:09,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2023-08-31 20:06:09,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 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 20:06:09,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:09,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:09,170 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 575 transitions. [2023-08-31 20:06:09,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-08-31 20:06:09,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:09,172 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-31 20:06:09,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-31 20:06:09,173 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2023-08-31 20:06:09,173 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-31 20:06:09,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 20:06:09,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:09,174 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:09,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 20:06:09,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:06:09,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:06:09,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1157557643, now seen corresponding path program 2 times [2023-08-31 20:06:09,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:09,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144739313] [2023-08-31 20:06:09,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:09,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 20:06:09,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:09,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144739313] [2023-08-31 20:06:09,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144739313] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:09,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:09,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:09,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655724564] [2023-08-31 20:06:09,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:09,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:09,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:09,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:10,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 176 [2023-08-31 20:06:10,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 20:06:10,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:10,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 176 [2023-08-31 20:06:10,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:10,259 INFO L130 PetriNetUnfolder]: 209/519 cut-off events. [2023-08-31 20:06:10,259 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 20:06:10,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 519 events. 209/519 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2543 event pairs, 86 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 982. Up to 259 conditions per place. [2023-08-31 20:06:10,267 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 67 selfloop transitions, 22 changer transitions 0/97 dead transitions. [2023-08-31 20:06:10,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 410 flow [2023-08-31 20:06:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2023-08-31 20:06:10,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2023-08-31 20:06:10,273 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2023-08-31 20:06:10,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2023-08-31 20:06:10,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:10,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2023-08-31 20:06:10,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 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 20:06:10,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:10,280 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:10,280 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 560 transitions. [2023-08-31 20:06:10,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 410 flow [2023-08-31 20:06:10,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 396 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:10,284 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 250 flow [2023-08-31 20:06:10,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=56, PETRI_TRANSITIONS=62} [2023-08-31 20:06:10,285 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 16 predicate places. [2023-08-31 20:06:10,285 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 250 flow [2023-08-31 20:06:10,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 20:06:10,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:10,286 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:10,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:06:10,287 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 20:06:10,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:10,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1092228275, now seen corresponding path program 1 times [2023-08-31 20:06:10,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:10,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397952730] [2023-08-31 20:06:10,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:10,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 20:06:10,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397952730] [2023-08-31 20:06:10,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397952730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:10,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:10,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:10,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221577647] [2023-08-31 20:06:10,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:10,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:10,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:10,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:10,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:10,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 176 [2023-08-31 20:06:10,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 20:06:10,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:10,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 176 [2023-08-31 20:06:10,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:10,927 INFO L130 PetriNetUnfolder]: 242/649 cut-off events. [2023-08-31 20:06:10,928 INFO L131 PetriNetUnfolder]: For 143/144 co-relation queries the response was YES. [2023-08-31 20:06:10,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 649 events. 242/649 cut-off events. For 143/144 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3781 event pairs, 105 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 1466. Up to 371 conditions per place. [2023-08-31 20:06:10,932 INFO L137 encePairwiseOnDemand]: 165/176 looper letters, 73 selfloop transitions, 26 changer transitions 0/115 dead transitions. [2023-08-31 20:06:10,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 115 transitions, 574 flow [2023-08-31 20:06:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2023-08-31 20:06:10,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5255681818181818 [2023-08-31 20:06:10,934 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2023-08-31 20:06:10,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2023-08-31 20:06:10,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:10,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2023-08-31 20:06:10,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 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 20:06:10,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:10,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:10,939 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 250 flow. Second operand 6 states and 555 transitions. [2023-08-31 20:06:10,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 115 transitions, 574 flow [2023-08-31 20:06:10,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 115 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:10,944 INFO L231 Difference]: Finished difference. Result has 65 places, 84 transitions, 428 flow [2023-08-31 20:06:10,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=65, PETRI_TRANSITIONS=84} [2023-08-31 20:06:10,945 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2023-08-31 20:06:10,945 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 84 transitions, 428 flow [2023-08-31 20:06:10,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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 20:06:10,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:10,945 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:10,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:06:10,946 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 20:06:10,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:10,946 INFO L85 PathProgramCache]: Analyzing trace with hash 547459376, now seen corresponding path program 1 times [2023-08-31 20:06:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:10,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793956280] [2023-08-31 20:06:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:10,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793956280] [2023-08-31 20:06:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793956280] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:06:11,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651226007] [2023-08-31 20:06:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:11,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:06:11,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:06:11,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:06:11,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 20:06:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:11,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 20:06:11,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:06:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:11,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:06:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651226007] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:06:11,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:06:11,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-31 20:06:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667239980] [2023-08-31 20:06:11,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:06:11,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:06:11,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:11,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:06:11,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:06:11,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 176 [2023-08-31 20:06:11,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 84 transitions, 428 flow. Second operand has 12 states, 12 states have (on average 93.41666666666667) internal successors, (1121), 12 states have internal predecessors, (1121), 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 20:06:11,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:11,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 176 [2023-08-31 20:06:11,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:11,358 INFO L130 PetriNetUnfolder]: 132/486 cut-off events. [2023-08-31 20:06:11,358 INFO L131 PetriNetUnfolder]: For 241/248 co-relation queries the response was YES. [2023-08-31 20:06:11,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 486 events. 132/486 cut-off events. For 241/248 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3052 event pairs, 59 based on Foata normal form. 6/479 useless extension candidates. Maximal degree in co-relation 1195. Up to 227 conditions per place. [2023-08-31 20:06:11,362 INFO L137 encePairwiseOnDemand]: 173/176 looper letters, 35 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2023-08-31 20:06:11,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 90 transitions, 556 flow [2023-08-31 20:06:11,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:06:11,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:06:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1136 transitions. [2023-08-31 20:06:11,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5378787878787878 [2023-08-31 20:06:11,366 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1136 transitions. [2023-08-31 20:06:11,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1136 transitions. [2023-08-31 20:06:11,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:11,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1136 transitions. [2023-08-31 20:06:11,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.66666666666667) internal successors, (1136), 12 states have internal predecessors, (1136), 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 20:06:11,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 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 20:06:11,374 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 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 20:06:11,374 INFO L175 Difference]: Start difference. First operand has 65 places, 84 transitions, 428 flow. Second operand 12 states and 1136 transitions. [2023-08-31 20:06:11,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 90 transitions, 556 flow [2023-08-31 20:06:11,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:11,381 INFO L231 Difference]: Finished difference. Result has 82 places, 90 transitions, 512 flow [2023-08-31 20:06:11,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=512, PETRI_PLACES=82, PETRI_TRANSITIONS=90} [2023-08-31 20:06:11,383 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 42 predicate places. [2023-08-31 20:06:11,384 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 90 transitions, 512 flow [2023-08-31 20:06:11,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 93.41666666666667) internal successors, (1121), 12 states have internal predecessors, (1121), 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 20:06:11,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:11,385 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:11,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-31 20:06:11,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:06:11,592 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:06:11,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:11,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1366035056, now seen corresponding path program 2 times [2023-08-31 20:06:11,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:11,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572988363] [2023-08-31 20:06:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:11,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:06:11,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572988363] [2023-08-31 20:06:11,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572988363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:11,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:11,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:11,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612976500] [2023-08-31 20:06:11,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:11,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:11,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:11,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:11,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:12,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 176 [2023-08-31 20:06:12,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 90 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 20:06:12,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:12,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 176 [2023-08-31 20:06:12,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:12,351 INFO L130 PetriNetUnfolder]: 470/1115 cut-off events. [2023-08-31 20:06:12,352 INFO L131 PetriNetUnfolder]: For 779/798 co-relation queries the response was YES. [2023-08-31 20:06:12,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 1115 events. 470/1115 cut-off events. For 779/798 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6444 event pairs, 146 based on Foata normal form. 1/1071 useless extension candidates. Maximal degree in co-relation 3188. Up to 681 conditions per place. [2023-08-31 20:06:12,359 INFO L137 encePairwiseOnDemand]: 161/176 looper letters, 129 selfloop transitions, 59 changer transitions 2/194 dead transitions. [2023-08-31 20:06:12,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 194 transitions, 1357 flow [2023-08-31 20:06:12,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:12,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-31 20:06:12,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2023-08-31 20:06:12,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-31 20:06:12,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-31 20:06:12,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:12,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-31 20:06:12,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 20:06:12,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:12,365 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:12,366 INFO L175 Difference]: Start difference. First operand has 82 places, 90 transitions, 512 flow. Second operand 6 states and 540 transitions. [2023-08-31 20:06:12,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 194 transitions, 1357 flow [2023-08-31 20:06:12,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 194 transitions, 1309 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-31 20:06:12,373 INFO L231 Difference]: Finished difference. Result has 86 places, 142 transitions, 982 flow [2023-08-31 20:06:12,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=982, PETRI_PLACES=86, PETRI_TRANSITIONS=142} [2023-08-31 20:06:12,374 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 46 predicate places. [2023-08-31 20:06:12,374 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 142 transitions, 982 flow [2023-08-31 20:06:12,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 20:06:12,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:12,375 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:12,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:06:12,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:06:12,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:12,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1630893388, now seen corresponding path program 1 times [2023-08-31 20:06:12,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:12,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25083938] [2023-08-31 20:06:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:12,642 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:06:12,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:12,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25083938] [2023-08-31 20:06:12,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25083938] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:12,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:12,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:12,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65760023] [2023-08-31 20:06:12,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:12,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:12,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:12,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:12,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:12,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 176 [2023-08-31 20:06:12,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 142 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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 20:06:12,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:12,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 176 [2023-08-31 20:06:12,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:13,134 INFO L130 PetriNetUnfolder]: 622/1452 cut-off events. [2023-08-31 20:06:13,135 INFO L131 PetriNetUnfolder]: For 2091/2114 co-relation queries the response was YES. [2023-08-31 20:06:13,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5150 conditions, 1452 events. 622/1452 cut-off events. For 2091/2114 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9026 event pairs, 128 based on Foata normal form. 3/1390 useless extension candidates. Maximal degree in co-relation 5085. Up to 830 conditions per place. [2023-08-31 20:06:13,144 INFO L137 encePairwiseOnDemand]: 161/176 looper letters, 149 selfloop transitions, 75 changer transitions 38/271 dead transitions. [2023-08-31 20:06:13,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 271 transitions, 2213 flow [2023-08-31 20:06:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 539 transitions. [2023-08-31 20:06:13,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2023-08-31 20:06:13,146 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 539 transitions. [2023-08-31 20:06:13,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 539 transitions. [2023-08-31 20:06:13,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:13,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 539 transitions. [2023-08-31 20:06:13,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 20:06:13,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:13,150 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 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 20:06:13,150 INFO L175 Difference]: Start difference. First operand has 86 places, 142 transitions, 982 flow. Second operand 6 states and 539 transitions. [2023-08-31 20:06:13,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 271 transitions, 2213 flow [2023-08-31 20:06:13,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 271 transitions, 2145 flow, removed 34 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:13,173 INFO L231 Difference]: Finished difference. Result has 95 places, 187 transitions, 1500 flow [2023-08-31 20:06:13,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1500, PETRI_PLACES=95, PETRI_TRANSITIONS=187} [2023-08-31 20:06:13,174 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 55 predicate places. [2023-08-31 20:06:13,174 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 187 transitions, 1500 flow [2023-08-31 20:06:13,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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 20:06:13,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:13,175 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:13,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:06:13,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:06:13,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:13,176 INFO L85 PathProgramCache]: Analyzing trace with hash 827926639, now seen corresponding path program 1 times [2023-08-31 20:06:13,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:13,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821494844] [2023-08-31 20:06:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:13,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 20:06:13,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 20:06:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 20:06:13,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 20:06:13,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 20:06:13,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 20:06:13,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 20:06:13,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-31 20:06:13,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-31 20:06:13,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 20:06:13,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 20:06:13,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 20:06:13,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:06:13,281 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2023-08-31 20:06:13,286 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:06:13,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:06:13,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:06:13 BasicIcfg [2023-08-31 20:06:13,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:06:13,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:06:13,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:06:13,338 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:06:13,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:06" (3/4) ... [2023-08-31 20:06:13,341 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 20:06:13,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:06:13,341 INFO L158 Benchmark]: Toolchain (without parser) took 7972.26ms. Allocated memory was 69.2MB in the beginning and 144.7MB in the end (delta: 75.5MB). Free memory was 45.3MB in the beginning and 59.9MB in the end (delta: -14.7MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,342 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:06:13,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.44ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 45.1MB in the beginning and 63.0MB in the end (delta: -17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.05ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 60.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,343 INFO L158 Benchmark]: Boogie Preprocessor took 31.49ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 58.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,343 INFO L158 Benchmark]: RCFGBuilder took 482.99ms. Allocated memory is still 98.6MB. Free memory was 58.4MB in the beginning and 75.9MB in the end (delta: -17.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,343 INFO L158 Benchmark]: TraceAbstraction took 6789.43ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 75.3MB in the beginning and 61.0MB in the end (delta: 14.3MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,344 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 144.7MB. Free memory was 61.0MB in the beginning and 59.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:06:13,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.44ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 45.1MB in the beginning and 63.0MB in the end (delta: -17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.05ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 60.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.49ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 58.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.99ms. Allocated memory is still 98.6MB. Free memory was 58.4MB in the beginning and 75.9MB in the end (delta: -17.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6789.43ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 75.3MB in the beginning and 61.0MB in the end (delta: 14.3MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 144.7MB. Free memory was 61.0MB in the beginning and 59.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 100 PlacesBefore, 40 PlacesAfterwards, 100 TransitionsBefore, 38 TransitionsAfterwards, 2262 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 9365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2861, independent: 2460, independent conditional: 0, independent unconditional: 2460, dependent: 401, dependent conditional: 0, dependent unconditional: 401, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1102, independent: 1047, independent conditional: 0, independent unconditional: 1047, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2861, independent: 1413, independent conditional: 0, independent unconditional: 1413, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 1102, unknown conditional: 0, unknown unconditional: 1102] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) [L939] 0 int i = __VERIFIER_nondet_int(); [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=1, i=10, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={5:0}] [L927] 1 int i = __VERIFIER_nondet_int(); [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; [L931] 1 i++ [L932] EXPR 1 a[i].datum VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum++=0, a[i].datum=0, arg={0:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, i=1, i=10, t1={5:0}] Now there is a data race (on the heap) between C: a[i].datum++ [932] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: 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: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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, 138 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: 6.6s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 581 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1397 IncrementalHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 4 mSDtfsCounter, 1397 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1500occurred in iteration=7, InterpolantAutomatonStates: 45, 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, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 130/163 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 20:06:13,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE