./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.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/02-base_24-malloc_races.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 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:55:47,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:55:47,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:55:47,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:55:47,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:55:47,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:55:47,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:55:47,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:55:47,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:55:47,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:55:47,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:55:47,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:55:47,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:55:47,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:55:47,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:55:47,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:55:47,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:55:47,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:55:47,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:55:47,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:55:47,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:55:47,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:55:47,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:55:47,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:55:47,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:55:47,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:55:47,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:55:47,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:55:47,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:55:47,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:55:47,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:55:47,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:55:47,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:55:47,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:55:47,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:55:47,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:55:47,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:55:47,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:55:47,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:55:47,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:55:47,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:55:47,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:55:47,615 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:55:47,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:55:47,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:55:47,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:55:47,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:55:47,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:55:47,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:55:47,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:55:47,619 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:55:47,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:55:47,620 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:55:47,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:55:47,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:55:47,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:55:47,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:55:47,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:55:47,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:55:47,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:55:47,621 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:55:47,621 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:55:47,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:55:47,622 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:55:47,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:55:47,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:55:47,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:55:47,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:55:47,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:55:47,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:55:47,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:55:47,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:55:47,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:55:47,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:55:47,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:55:47,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:55:47,624 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:55:47,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:55:47,625 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:55:47,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:55:47,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:55:47,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:55:47,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:55:47,919 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:55:47,920 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:55:47,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2023-08-31 19:55:48,992 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:55:49,272 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:55:49,273 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2023-08-31 19:55:49,303 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0882f2e90/f8e1c331338a46238247ae55b330675e/FLAG03010d579 [2023-08-31 19:55:49,319 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0882f2e90/f8e1c331338a46238247ae55b330675e [2023-08-31 19:55:49,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:55:49,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:55:49,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:55:49,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:55:49,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:55:49,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784548f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49, skipping insertion in model container [2023-08-31 19:55:49,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:55:49,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:55:49,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:55:50,008 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:55:50,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:55:50,136 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:55:50,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50 WrapperNode [2023-08-31 19:55:50,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:55:50,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:55:50,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:55:50,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:55:50,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,209 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2023-08-31 19:55:50,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:55:50,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:55:50,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:55:50,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:55:50,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:55:50,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:55:50,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:55:50,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:55:50,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (1/1) ... [2023-08-31 19:55:50,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:55:50,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:55:50,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:55:50,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:55:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:55:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:55:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:55:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:55:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:55:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 19:55:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:55:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:55:50,341 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:55:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:55:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:55:50,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:55:50,342 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:55:50,490 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:55:50,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:55:50,703 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:55:50,709 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:55:50,709 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:55:50,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:55:50 BoogieIcfgContainer [2023-08-31 19:55:50,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:55:50,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:55:50,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:55:50,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:55:50,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:55:49" (1/3) ... [2023-08-31 19:55:50,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4fce35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:55:50, skipping insertion in model container [2023-08-31 19:55:50,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:50" (2/3) ... [2023-08-31 19:55:50,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4fce35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:55:50, skipping insertion in model container [2023-08-31 19:55:50,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:55:50" (3/3) ... [2023-08-31 19:55:50,717 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2023-08-31 19:55:50,724 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:55:50,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:55:50,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-31 19:55:50,731 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:55:50,784 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:55:50,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 205 flow [2023-08-31 19:55:50,851 INFO L130 PetriNetUnfolder]: 0/99 cut-off events. [2023-08-31 19:55:50,852 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:50,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:55:50,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 100 transitions, 205 flow [2023-08-31 19:55:50,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 99 transitions, 201 flow [2023-08-31 19:55:50,864 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:55:50,871 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 99 transitions, 201 flow [2023-08-31 19:55:50,882 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 99 transitions, 201 flow [2023-08-31 19:55:50,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 201 flow [2023-08-31 19:55:50,915 INFO L130 PetriNetUnfolder]: 0/99 cut-off events. [2023-08-31 19:55:50,915 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:50,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 0/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:55:50,917 INFO L119 LiptonReduction]: Number of co-enabled transitions 2040 [2023-08-31 19:55:53,186 INFO L134 LiptonReduction]: Checked pairs total: 15676 [2023-08-31 19:55:53,187 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-31 19:55:53,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:55:53,202 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;@120c0f77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:55:53,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-31 19:55:53,203 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:55:53,204 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:53,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:53,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:55:53,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:53,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:53,209 INFO L85 PathProgramCache]: Analyzing trace with hash 318, now seen corresponding path program 1 times [2023-08-31 19:55:53,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:53,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400812484] [2023-08-31 19:55:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:53,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:53,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:53,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400812484] [2023-08-31 19:55:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400812484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:53,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:53,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:55:53,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949504303] [2023-08-31 19:55:53,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:53,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:55:53,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:53,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:55:53,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:55:53,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 159 [2023-08-31 19:55:53,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 99 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:53,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 159 [2023-08-31 19:55:53,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:53,394 INFO L130 PetriNetUnfolder]: 35/208 cut-off events. [2023-08-31 19:55:53,396 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:53,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 208 events. 35/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 925 event pairs, 35 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 288. Up to 85 conditions per place. [2023-08-31 19:55:53,402 INFO L137 encePairwiseOnDemand]: 157/159 looper letters, 14 selfloop transitions, 0 changer transitions 0/46 dead transitions. [2023-08-31 19:55:53,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 123 flow [2023-08-31 19:55:53,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:55:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:55:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 214 transitions. [2023-08-31 19:55:53,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6729559748427673 [2023-08-31 19:55:53,415 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 214 transitions. [2023-08-31 19:55:53,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 214 transitions. [2023-08-31 19:55:53,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:53,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 214 transitions. [2023-08-31 19:55:53,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,429 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,430 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 99 flow. Second operand 2 states and 214 transitions. [2023-08-31 19:55:53,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 123 flow [2023-08-31 19:55:53,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:55:53,433 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 94 flow [2023-08-31 19:55:53,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-31 19:55:53,437 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-08-31 19:55:53,437 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 94 flow [2023-08-31 19:55:53,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:53,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:55:53,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:55:53,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:53,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:53,439 INFO L85 PathProgramCache]: Analyzing trace with hash 303604012, now seen corresponding path program 1 times [2023-08-31 19:55:53,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:53,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487537403] [2023-08-31 19:55:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:53,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:53,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:53,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487537403] [2023-08-31 19:55:53,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487537403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:53,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:53,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:55:53,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626515247] [2023-08-31 19:55:53,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:53,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:55:53,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:53,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:55:53,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:55:53,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2023-08-31 19:55:53,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:53,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2023-08-31 19:55:53,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:53,652 INFO L130 PetriNetUnfolder]: 48/233 cut-off events. [2023-08-31 19:55:53,652 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:53,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 48/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1045 event pairs, 29 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 347. Up to 106 conditions per place. [2023-08-31 19:55:53,657 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 18 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-31 19:55:53,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 138 flow [2023-08-31 19:55:53,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:55:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:55:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-31 19:55:53,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6247379454926625 [2023-08-31 19:55:53,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-31 19:55:53,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-31 19:55:53,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:53,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-31 19:55:53,666 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 19:55:53,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,670 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 94 flow. Second operand 3 states and 298 transitions. [2023-08-31 19:55:53,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 138 flow [2023-08-31 19:55:53,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:53,671 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 104 flow [2023-08-31 19:55:53,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2023-08-31 19:55:53,672 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2023-08-31 19:55:53,672 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 104 flow [2023-08-31 19:55:53,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:53,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:53,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:55:53,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:53,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1969543495, now seen corresponding path program 1 times [2023-08-31 19:55:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231095621] [2023-08-31 19:55:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:53,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:54,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:54,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231095621] [2023-08-31 19:55:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231095621] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:54,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:54,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437481792] [2023-08-31 19:55:54,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:54,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:54,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:54,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:54,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:54,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 159 [2023-08-31 19:55:54,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:54,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 159 [2023-08-31 19:55:54,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:54,383 INFO L130 PetriNetUnfolder]: 240/755 cut-off events. [2023-08-31 19:55:54,384 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-31 19:55:54,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 755 events. 240/755 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4559 event pairs, 25 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 1319. Up to 274 conditions per place. [2023-08-31 19:55:54,390 INFO L137 encePairwiseOnDemand]: 144/159 looper letters, 71 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2023-08-31 19:55:54,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 126 transitions, 488 flow [2023-08-31 19:55:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2023-08-31 19:55:54,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6278825995807128 [2023-08-31 19:55:54,393 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2023-08-31 19:55:54,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2023-08-31 19:55:54,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:54,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2023-08-31 19:55:54,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,398 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 104 flow. Second operand 6 states and 599 transitions. [2023-08-31 19:55:54,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 126 transitions, 488 flow [2023-08-31 19:55:54,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 126 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:54,402 INFO L231 Difference]: Finished difference. Result has 60 places, 84 transitions, 340 flow [2023-08-31 19:55:54,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=60, PETRI_TRANSITIONS=84} [2023-08-31 19:55:54,403 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2023-08-31 19:55:54,406 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 84 transitions, 340 flow [2023-08-31 19:55:54,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:54,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:54,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:55:54,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:54,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1746522081, now seen corresponding path program 1 times [2023-08-31 19:55:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:54,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060748025] [2023-08-31 19:55:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:54,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:54,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060748025] [2023-08-31 19:55:54,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060748025] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:54,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:54,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:54,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876965722] [2023-08-31 19:55:54,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:54,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:54,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:54,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:54,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:54,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 159 [2023-08-31 19:55:54,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 84 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:54,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 159 [2023-08-31 19:55:54,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:54,908 INFO L130 PetriNetUnfolder]: 452/1152 cut-off events. [2023-08-31 19:55:54,908 INFO L131 PetriNetUnfolder]: For 434/446 co-relation queries the response was YES. [2023-08-31 19:55:54,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 1152 events. 452/1152 cut-off events. For 434/446 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6993 event pairs, 183 based on Foata normal form. 23/1128 useless extension candidates. Maximal degree in co-relation 2909. Up to 815 conditions per place. [2023-08-31 19:55:54,914 INFO L137 encePairwiseOnDemand]: 144/159 looper letters, 99 selfloop transitions, 45 changer transitions 0/158 dead transitions. [2023-08-31 19:55:54,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 158 transitions, 888 flow [2023-08-31 19:55:54,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2023-08-31 19:55:54,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5817610062893082 [2023-08-31 19:55:54,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2023-08-31 19:55:54,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2023-08-31 19:55:54,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:54,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2023-08-31 19:55:54,919 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 19:55:54,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,922 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,922 INFO L175 Difference]: Start difference. First operand has 60 places, 84 transitions, 340 flow. Second operand 6 states and 555 transitions. [2023-08-31 19:55:54,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 158 transitions, 888 flow [2023-08-31 19:55:54,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 158 transitions, 888 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:54,928 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 681 flow [2023-08-31 19:55:54,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=681, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2023-08-31 19:55:54,929 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2023-08-31 19:55:54,929 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 681 flow [2023-08-31 19:55:54,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:54,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:54,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:55:54,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:54,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash -924462950, now seen corresponding path program 1 times [2023-08-31 19:55:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:54,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718372414] [2023-08-31 19:55:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:54,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718372414] [2023-08-31 19:55:54,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718372414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:54,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:54,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:55:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912051087] [2023-08-31 19:55:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:54,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:55:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:54,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:55:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:55:54,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2023-08-31 19:55:54,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 681 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 19:55:54,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:54,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2023-08-31 19:55:54,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:55,082 INFO L130 PetriNetUnfolder]: 237/811 cut-off events. [2023-08-31 19:55:55,083 INFO L131 PetriNetUnfolder]: For 696/750 co-relation queries the response was YES. [2023-08-31 19:55:55,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 811 events. 237/811 cut-off events. For 696/750 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5198 event pairs, 42 based on Foata normal form. 17/815 useless extension candidates. Maximal degree in co-relation 2190. Up to 250 conditions per place. [2023-08-31 19:55:55,088 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 59 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-08-31 19:55:55,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 905 flow [2023-08-31 19:55:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:55:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:55:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-31 19:55:55,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6373165618448637 [2023-08-31 19:55:55,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-31 19:55:55,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-31 19:55:55,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:55,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-31 19:55:55,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,094 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 681 flow. Second operand 3 states and 304 transitions. [2023-08-31 19:55:55,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 905 flow [2023-08-31 19:55:55,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 889 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:55,103 INFO L231 Difference]: Finished difference. Result has 70 places, 126 transitions, 675 flow [2023-08-31 19:55:55,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=70, PETRI_TRANSITIONS=126} [2023-08-31 19:55:55,104 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2023-08-31 19:55:55,104 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 126 transitions, 675 flow [2023-08-31 19:55:55,104 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 19:55:55,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:55,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:55,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:55:55,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:55,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:55,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1958450872, now seen corresponding path program 1 times [2023-08-31 19:55:55,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:55,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425128190] [2023-08-31 19:55:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:55,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:55,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:55,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425128190] [2023-08-31 19:55:55,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425128190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:55,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:55,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:55:55,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287358964] [2023-08-31 19:55:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:55,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:55:55,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:55:55,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:55:55,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 159 [2023-08-31 19:55:55,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 126 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:55,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 159 [2023-08-31 19:55:55,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:55,207 INFO L130 PetriNetUnfolder]: 49/223 cut-off events. [2023-08-31 19:55:55,208 INFO L131 PetriNetUnfolder]: For 136/142 co-relation queries the response was YES. [2023-08-31 19:55:55,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 223 events. 49/223 cut-off events. For 136/142 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 888 event pairs, 11 based on Foata normal form. 12/232 useless extension candidates. Maximal degree in co-relation 584. Up to 68 conditions per place. [2023-08-31 19:55:55,209 INFO L137 encePairwiseOnDemand]: 155/159 looper letters, 19 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2023-08-31 19:55:55,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 348 flow [2023-08-31 19:55:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:55:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:55:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2023-08-31 19:55:55,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6310272536687631 [2023-08-31 19:55:55,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2023-08-31 19:55:55,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2023-08-31 19:55:55,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:55,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2023-08-31 19:55:55,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,214 INFO L175 Difference]: Start difference. First operand has 70 places, 126 transitions, 675 flow. Second operand 3 states and 301 transitions. [2023-08-31 19:55:55,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 348 flow [2023-08-31 19:55:55,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 304 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-08-31 19:55:55,217 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 255 flow [2023-08-31 19:55:55,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2023-08-31 19:55:55,218 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2023-08-31 19:55:55,218 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 255 flow [2023-08-31 19:55:55,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:55,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:55:55,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:55,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2088875983, now seen corresponding path program 1 times [2023-08-31 19:55:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:55,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359811902] [2023-08-31 19:55:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:55,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:55,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359811902] [2023-08-31 19:55:55,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359811902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:55,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:55,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:55,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303959041] [2023-08-31 19:55:55,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:55,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:55,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:55,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 159 [2023-08-31 19:55:55,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:55,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 159 [2023-08-31 19:55:55,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:55,607 INFO L130 PetriNetUnfolder]: 141/415 cut-off events. [2023-08-31 19:55:55,607 INFO L131 PetriNetUnfolder]: For 125/127 co-relation queries the response was YES. [2023-08-31 19:55:55,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 415 events. 141/415 cut-off events. For 125/127 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1834 event pairs, 51 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 1062. Up to 266 conditions per place. [2023-08-31 19:55:55,609 INFO L137 encePairwiseOnDemand]: 148/159 looper letters, 69 selfloop transitions, 21 changer transitions 4/106 dead transitions. [2023-08-31 19:55:55,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 563 flow [2023-08-31 19:55:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:55,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:55,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 527 transitions. [2023-08-31 19:55:55,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5524109014675053 [2023-08-31 19:55:55,612 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 527 transitions. [2023-08-31 19:55:55,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 527 transitions. [2023-08-31 19:55:55,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:55,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 527 transitions. [2023-08-31 19:55:55,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,617 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 255 flow. Second operand 6 states and 527 transitions. [2023-08-31 19:55:55,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 563 flow [2023-08-31 19:55:55,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:55:55,621 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 414 flow [2023-08-31 19:55:55,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2023-08-31 19:55:55,621 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 20 predicate places. [2023-08-31 19:55:55,622 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 414 flow [2023-08-31 19:55:55,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:55,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:55,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:55:55,623 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:55,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash 882238423, now seen corresponding path program 1 times [2023-08-31 19:55:55,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:55,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492018529] [2023-08-31 19:55:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:55,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:55,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492018529] [2023-08-31 19:55:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492018529] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:55,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:55,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:55,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602731958] [2023-08-31 19:55:55,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:55,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:55,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:55,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 159 [2023-08-31 19:55:55,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:55,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 159 [2023-08-31 19:55:55,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:56,125 INFO L130 PetriNetUnfolder]: 209/590 cut-off events. [2023-08-31 19:55:56,125 INFO L131 PetriNetUnfolder]: For 429/435 co-relation queries the response was YES. [2023-08-31 19:55:56,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1921 conditions, 590 events. 209/590 cut-off events. For 429/435 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2965 event pairs, 32 based on Foata normal form. 18/606 useless extension candidates. Maximal degree in co-relation 1904. Up to 284 conditions per place. [2023-08-31 19:55:56,129 INFO L137 encePairwiseOnDemand]: 144/159 looper letters, 84 selfloop transitions, 48 changer transitions 17/165 dead transitions. [2023-08-31 19:55:56,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 165 transitions, 1053 flow [2023-08-31 19:55:56,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:56,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-31 19:55:56,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194968553459119 [2023-08-31 19:55:56,132 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-31 19:55:56,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-31 19:55:56,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:56,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-31 19:55:56,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,136 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 159.0) internal successors, (1113), 7 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,136 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 414 flow. Second operand 6 states and 591 transitions. [2023-08-31 19:55:56,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 165 transitions, 1053 flow [2023-08-31 19:55:56,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 165 transitions, 1045 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:56,141 INFO L231 Difference]: Finished difference. Result has 81 places, 119 transitions, 753 flow [2023-08-31 19:55:56,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=753, PETRI_PLACES=81, PETRI_TRANSITIONS=119} [2023-08-31 19:55:56,144 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2023-08-31 19:55:56,144 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 119 transitions, 753 flow [2023-08-31 19:55:56,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:56,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:56,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:55:56,145 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:56,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:56,152 INFO L85 PathProgramCache]: Analyzing trace with hash -696175190, now seen corresponding path program 1 times [2023-08-31 19:55:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168142829] [2023-08-31 19:55:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:56,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:56,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168142829] [2023-08-31 19:55:56,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168142829] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:56,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:56,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 19:55:56,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608721985] [2023-08-31 19:55:56,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:56,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 19:55:56,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:56,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 19:55:56,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 19:55:56,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 159 [2023-08-31 19:55:56,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 119 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:56,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 159 [2023-08-31 19:55:56,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:56,712 INFO L130 PetriNetUnfolder]: 186/503 cut-off events. [2023-08-31 19:55:56,712 INFO L131 PetriNetUnfolder]: For 896/917 co-relation queries the response was YES. [2023-08-31 19:55:56,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2130 conditions, 503 events. 186/503 cut-off events. For 896/917 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2397 event pairs, 34 based on Foata normal form. 11/513 useless extension candidates. Maximal degree in co-relation 2108. Up to 321 conditions per place. [2023-08-31 19:55:56,716 INFO L137 encePairwiseOnDemand]: 152/159 looper letters, 106 selfloop transitions, 26 changer transitions 9/153 dead transitions. [2023-08-31 19:55:56,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 153 transitions, 1327 flow [2023-08-31 19:55:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:55:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:55:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 572 transitions. [2023-08-31 19:55:56,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5139263252470799 [2023-08-31 19:55:56,718 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 572 transitions. [2023-08-31 19:55:56,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 572 transitions. [2023-08-31 19:55:56,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:56,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 572 transitions. [2023-08-31 19:55:56,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,722 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,722 INFO L175 Difference]: Start difference. First operand has 81 places, 119 transitions, 753 flow. Second operand 7 states and 572 transitions. [2023-08-31 19:55:56,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 153 transitions, 1327 flow [2023-08-31 19:55:56,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 153 transitions, 1278 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-31 19:55:56,730 INFO L231 Difference]: Finished difference. Result has 82 places, 117 transitions, 745 flow [2023-08-31 19:55:56,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=745, PETRI_PLACES=82, PETRI_TRANSITIONS=117} [2023-08-31 19:55:56,731 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 30 predicate places. [2023-08-31 19:55:56,731 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 117 transitions, 745 flow [2023-08-31 19:55:56,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:56,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:56,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:56,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:55:56,732 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:56,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:56,733 INFO L85 PathProgramCache]: Analyzing trace with hash -185853064, now seen corresponding path program 1 times [2023-08-31 19:55:56,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:56,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559098543] [2023-08-31 19:55:56,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:56,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:57,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:57,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559098543] [2023-08-31 19:55:57,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559098543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:57,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:57,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 19:55:57,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141050998] [2023-08-31 19:55:57,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:57,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 19:55:57,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 19:55:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 19:55:57,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 159 [2023-08-31 19:55:57,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 117 transitions, 745 flow. Second operand has 8 states, 8 states have (on average 81.75) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:57,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:57,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 159 [2023-08-31 19:55:57,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:57,406 INFO L130 PetriNetUnfolder]: 182/488 cut-off events. [2023-08-31 19:55:57,407 INFO L131 PetriNetUnfolder]: For 830/843 co-relation queries the response was YES. [2023-08-31 19:55:57,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2133 conditions, 488 events. 182/488 cut-off events. For 830/843 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2288 event pairs, 20 based on Foata normal form. 13/500 useless extension candidates. Maximal degree in co-relation 2113. Up to 151 conditions per place. [2023-08-31 19:55:57,410 INFO L137 encePairwiseOnDemand]: 147/159 looper letters, 109 selfloop transitions, 51 changer transitions 7/182 dead transitions. [2023-08-31 19:55:57,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 182 transitions, 1512 flow [2023-08-31 19:55:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:55:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:55:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 659 transitions. [2023-08-31 19:55:57,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5920934411500449 [2023-08-31 19:55:57,413 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 659 transitions. [2023-08-31 19:55:57,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 659 transitions. [2023-08-31 19:55:57,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:57,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 659 transitions. [2023-08-31 19:55:57,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.14285714285714) internal successors, (659), 7 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:57,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:57,418 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 159.0) internal successors, (1272), 8 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:57,418 INFO L175 Difference]: Start difference. First operand has 82 places, 117 transitions, 745 flow. Second operand 7 states and 659 transitions. [2023-08-31 19:55:57,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 182 transitions, 1512 flow [2023-08-31 19:55:57,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 182 transitions, 1354 flow, removed 18 selfloop flow, removed 7 redundant places. [2023-08-31 19:55:57,428 INFO L231 Difference]: Finished difference. Result has 85 places, 124 transitions, 911 flow [2023-08-31 19:55:57,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=911, PETRI_PLACES=85, PETRI_TRANSITIONS=124} [2023-08-31 19:55:57,429 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 33 predicate places. [2023-08-31 19:55:57,429 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 124 transitions, 911 flow [2023-08-31 19:55:57,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.75) internal successors, (654), 8 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:57,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:57,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:57,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:55:57,430 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:57,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:57,431 INFO L85 PathProgramCache]: Analyzing trace with hash 899386530, now seen corresponding path program 1 times [2023-08-31 19:55:57,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:57,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227249733] [2023-08-31 19:55:57,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:57,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:55:57,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:55:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:55:57,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:55:57,510 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:55:57,511 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-31 19:55:57,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-31 19:55:57,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-31 19:55:57,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-31 19:55:57,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-31 19:55:57,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-31 19:55:57,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-31 19:55:57,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-31 19:55:57,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-31 19:55:57,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-31 19:55:57,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-31 19:55:57,517 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-31 19:55:57,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-31 19:55:57,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-31 19:55:57,518 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-31 19:55:57,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 19:55:57,518 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:57,524 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:55:57,524 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:55:57,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:55:57 BasicIcfg [2023-08-31 19:55:57,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:55:57,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:55:57,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:55:57,579 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:55:57,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:55:50" (3/4) ... [2023-08-31 19:55:57,581 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:55:57,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:55:57,582 INFO L158 Benchmark]: Toolchain (without parser) took 8259.34ms. Allocated memory was 75.5MB in the beginning and 201.3MB in the end (delta: 125.8MB). Free memory was 50.5MB in the beginning and 168.2MB in the end (delta: -117.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-08-31 19:55:57,582 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 34.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:55:57,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.03ms. Allocated memory is still 75.5MB. Free memory was 50.3MB in the beginning and 30.1MB in the end (delta: 20.1MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-08-31 19:55:57,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.87ms. Allocated memory is still 75.5MB. Free memory was 30.1MB in the beginning and 27.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:55:57,583 INFO L158 Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 75.5MB. Free memory was 27.6MB in the beginning and 53.1MB in the end (delta: -25.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-08-31 19:55:57,583 INFO L158 Benchmark]: RCFGBuilder took 442.20ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 37.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 19:55:57,584 INFO L158 Benchmark]: TraceAbstraction took 6865.86ms. Allocated memory was 75.5MB in the beginning and 201.3MB in the end (delta: 125.8MB). Free memory was 36.8MB in the beginning and 168.2MB in the end (delta: -131.5MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2023-08-31 19:55:57,584 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 201.3MB. Free memory is still 168.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:55:57,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 34.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.03ms. Allocated memory is still 75.5MB. Free memory was 50.3MB in the beginning and 30.1MB in the end (delta: 20.1MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.87ms. Allocated memory is still 75.5MB. Free memory was 30.1MB in the beginning and 27.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.99ms. Allocated memory is still 75.5MB. Free memory was 27.6MB in the beginning and 53.1MB in the end (delta: -25.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * RCFGBuilder took 442.20ms. Allocated memory is still 75.5MB. Free memory was 53.1MB in the beginning and 37.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6865.86ms. Allocated memory was 75.5MB in the beginning and 201.3MB in the end (delta: 125.8MB). Free memory was 36.8MB in the beginning and 168.2MB in the end (delta: -131.5MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 201.3MB. Free memory is still 168.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 103 PlacesBefore, 52 PlacesAfterwards, 99 TransitionsBefore, 48 TransitionsAfterwards, 2040 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 15676 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4815, independent: 4167, independent conditional: 0, independent unconditional: 4167, dependent: 648, dependent conditional: 0, dependent unconditional: 648, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 883, independent: 811, independent conditional: 0, independent unconditional: 811, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4815, independent: 3356, independent conditional: 0, independent unconditional: 3356, dependent: 576, dependent conditional: 0, dependent unconditional: 576, unknown: 883, unknown conditional: 0, unknown unconditional: 883] , Statistics on independence cache: Total cache size (in pairs): 278, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1241]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 x = malloc(sizeof(int)) [L1236] 0 y = malloc(sizeof(int)) [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-3:0}, y={-2:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1239] EXPR 0 \read(*x) VAL [\read(*x)=25, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1239] 0 printf("%d\n",*x) [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, pthread_mutex_lock(&m)=0, x={-3:0}, y={-2:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] EXPR 0 \read(*y) VAL [\read(*y)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] 1 *y = 8 VAL [*y = 8=26, arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1241] 0 printf("%d\n",*y) VAL [*y = 8=26, \read(*y)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: y = malloc(sizeof(int)) [1236] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1235] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: 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: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: 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, 133 locations, 15 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: 6.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 646 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1818 IncrementalHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 224 mSolverCounterUnsat, 35 mSDtfsCounter, 1818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=10, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:55:57,655 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