./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.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 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:08:42,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:08:42,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:08:42,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:08:42,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:08:42,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:08:42,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:08:42,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:08:42,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:08:42,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:08:42,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:08:42,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:08:42,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:08:42,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:08:42,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:08:42,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:08:42,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:08:42,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:08:42,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:08:42,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:08:42,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:08:42,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:08:42,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:08:42,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:08:42,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:08:42,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:08:42,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:08:42,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:08:42,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:08:42,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:08:42,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:08:42,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:08:42,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:08:42,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:08:42,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:08:42,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:08:42,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:08:42,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:08:42,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:08:42,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:08:42,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:08:42,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:08:42,339 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:08:42,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:08:42,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:08:42,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:08:42,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:08:42,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:08:42,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:08:42,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:08:42,343 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:08:42,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:08:42,344 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:08:42,344 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:08:42,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:08:42,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:08:42,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:08:42,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:08:42,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:08:42,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:08:42,345 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:08:42,345 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:08:42,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:08:42,346 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:08:42,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:08:42,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:08:42,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:08:42,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:08:42,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:08:42,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:08:42,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:08:42,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:08:42,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:08:42,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:08:42,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:08:42,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:08:42,348 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:08:42,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:08:42,348 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:08:42,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:08:42,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:08:42,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:08:42,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:08:42,648 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:08:42,649 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:08:42,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2023-08-29 18:08:43,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:08:44,029 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:08:44,029 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2023-08-29 18:08:44,043 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729c4f354/37a3c1be2aa04c819c29277a8ae3fd9b/FLAGe48077db8 [2023-08-29 18:08:44,057 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729c4f354/37a3c1be2aa04c819c29277a8ae3fd9b [2023-08-29 18:08:44,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:08:44,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:08:44,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:08:44,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:08:44,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:08:44,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399b5240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44, skipping insertion in model container [2023-08-29 18:08:44,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:08:44,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:08:44,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:08:44,438 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:08:44,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:08:44,573 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:08:44,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44 WrapperNode [2023-08-29 18:08:44,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:08:44,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:08:44,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:08:44,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:08:44,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,636 INFO L138 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-08-29 18:08:44,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:08:44,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:08:44,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:08:44,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:08:44,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:08:44,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:08:44,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:08:44,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:08:44,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (1/1) ... [2023-08-29 18:08:44,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:08:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:08:44,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:08:44,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:08:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:08:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:08:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:08:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:08:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:08:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:08:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:08:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:08:44,754 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:08:44,899 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:08:44,901 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:08:45,083 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:08:45,095 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:08:45,096 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 18:08:45,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:08:45 BoogieIcfgContainer [2023-08-29 18:08:45,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:08:45,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:08:45,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:08:45,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:08:45,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:08:44" (1/3) ... [2023-08-29 18:08:45,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbb0da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:08:45, skipping insertion in model container [2023-08-29 18:08:45,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:08:44" (2/3) ... [2023-08-29 18:08:45,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbb0da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:08:45, skipping insertion in model container [2023-08-29 18:08:45,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:08:45" (3/3) ... [2023-08-29 18:08:45,106 INFO L112 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2023-08-29 18:08:45,114 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:08:45,123 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:08:45,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-29 18:08:45,124 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:08:45,172 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 18:08:45,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 18:08:45,259 INFO L130 PetriNetUnfolder]: 5/74 cut-off events. [2023-08-29 18:08:45,259 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:08:45,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 74 events. 5/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2023-08-29 18:08:45,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 18:08:45,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 52 transitions, 112 flow [2023-08-29 18:08:45,270 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:08:45,286 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 52 transitions, 112 flow [2023-08-29 18:08:45,293 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 52 transitions, 112 flow [2023-08-29 18:08:45,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 112 flow [2023-08-29 18:08:45,308 INFO L130 PetriNetUnfolder]: 5/74 cut-off events. [2023-08-29 18:08:45,308 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:08:45,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 74 events. 5/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2023-08-29 18:08:45,310 INFO L119 LiptonReduction]: Number of co-enabled transitions 504 [2023-08-29 18:08:46,475 INFO L134 LiptonReduction]: Checked pairs total: 475 [2023-08-29 18:08:46,475 INFO L136 LiptonReduction]: Total number of compositions: 46 [2023-08-29 18:08:46,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:08:46,503 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;@2705fabc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:08:46,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 18:08:46,507 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-29 18:08:46,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:08:46,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:46,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 18:08:46,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 18:08:46,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:46,513 INFO L85 PathProgramCache]: Analyzing trace with hash 205829, now seen corresponding path program 1 times [2023-08-29 18:08:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255212849] [2023-08-29 18:08:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:08:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255212849] [2023-08-29 18:08:46,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255212849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:46,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:46,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:46,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924740371] [2023-08-29 18:08:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:46,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:46,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:46,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:46,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 98 [2023-08-29 18:08:46,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 13 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:46,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:46,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 98 [2023-08-29 18:08:46,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:46,833 INFO L130 PetriNetUnfolder]: 4/22 cut-off events. [2023-08-29 18:08:46,834 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:08:46,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 22 events. 4/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 2 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 26. Up to 11 conditions per place. [2023-08-29 18:08:46,835 INFO L137 encePairwiseOnDemand]: 91/98 looper letters, 5 selfloop transitions, 2 changer transitions 6/14 dead transitions. [2023-08-29 18:08:46,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 14 transitions, 62 flow [2023-08-29 18:08:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:46,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2023-08-29 18:08:46,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47278911564625853 [2023-08-29 18:08:46,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 139 transitions. [2023-08-29 18:08:46,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 139 transitions. [2023-08-29 18:08:46,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:46,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 139 transitions. [2023-08-29 18:08:46,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:46,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:46,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:46,867 INFO L175 Difference]: Start difference. First operand has 15 places, 13 transitions, 34 flow. Second operand 3 states and 139 transitions. [2023-08-29 18:08:46,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 14 transitions, 62 flow [2023-08-29 18:08:46,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 14 transitions, 62 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:08:46,872 INFO L231 Difference]: Finished difference. Result has 15 places, 6 transitions, 21 flow [2023-08-29 18:08:46,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=21, PETRI_PLACES=15, PETRI_TRANSITIONS=6} [2023-08-29 18:08:46,877 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, 0 predicate places. [2023-08-29 18:08:46,878 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 6 transitions, 21 flow [2023-08-29 18:08:46,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:46,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:46,879 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 18:08:46,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:08:46,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-29 18:08:46,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:46,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1852396633, now seen corresponding path program 1 times [2023-08-29 18:08:46,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:46,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156434543] [2023-08-29 18:08:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:08:46,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:08:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:08:46,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:08:46,966 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:08:46,967 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-29 18:08:46,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-08-29 18:08:46,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-29 18:08:46,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-29 18:08:46,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:08:46,970 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 18:08:46,973 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:08:46,973 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 18:08:46,992 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:08:46,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 144 flow [2023-08-29 18:08:47,042 INFO L130 PetriNetUnfolder]: 10/137 cut-off events. [2023-08-29 18:08:47,042 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:08:47,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 137 events. 10/137 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 278 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2023-08-29 18:08:47,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 144 flow [2023-08-29 18:08:47,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 63 transitions, 144 flow [2023-08-29 18:08:47,044 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:08:47,045 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 63 transitions, 144 flow [2023-08-29 18:08:47,045 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 63 transitions, 144 flow [2023-08-29 18:08:47,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 144 flow [2023-08-29 18:08:47,080 INFO L130 PetriNetUnfolder]: 10/137 cut-off events. [2023-08-29 18:08:47,080 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:08:47,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 137 events. 10/137 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 278 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2023-08-29 18:08:47,083 INFO L119 LiptonReduction]: Number of co-enabled transitions 1368 [2023-08-29 18:08:48,003 INFO L134 LiptonReduction]: Checked pairs total: 2602 [2023-08-29 18:08:48,004 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-29 18:08:48,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:08:48,006 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;@2705fabc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:08:48,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-29 18:08:48,008 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-29 18:08:48,008 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:08:48,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:48,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 18:08:48,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2023-08-29 18:08:48,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash 323067, now seen corresponding path program 1 times [2023-08-29 18:08:48,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:48,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566900876] [2023-08-29 18:08:48,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:48,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:08:48,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566900876] [2023-08-29 18:08:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566900876] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:48,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:48,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815275798] [2023-08-29 18:08:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:48,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:48,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2023-08-29 18:08:48,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:48,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2023-08-29 18:08:48,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:48,135 INFO L130 PetriNetUnfolder]: 80/216 cut-off events. [2023-08-29 18:08:48,135 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 18:08:48,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 216 events. 80/216 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 941 event pairs, 36 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 175. Up to 104 conditions per place. [2023-08-29 18:08:48,137 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 4 changer transitions 3/32 dead transitions. [2023-08-29 18:08:48,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 138 flow [2023-08-29 18:08:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-08-29 18:08:48,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5482866043613707 [2023-08-29 18:08:48,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-08-29 18:08:48,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-08-29 18:08:48,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:48,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-08-29 18:08:48,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,143 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 64 flow. Second operand 3 states and 176 transitions. [2023-08-29 18:08:48,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 138 flow [2023-08-29 18:08:48,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 32 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:08:48,145 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 80 flow [2023-08-29 18:08:48,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2023-08-29 18:08:48,146 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-08-29 18:08:48,146 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 80 flow [2023-08-29 18:08:48,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:48,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:08:48,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:08:48,147 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2023-08-29 18:08:48,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1049187353, now seen corresponding path program 1 times [2023-08-29 18:08:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:48,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801423704] [2023-08-29 18:08:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:48,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:08:48,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:48,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801423704] [2023-08-29 18:08:48,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801423704] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:48,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:48,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:48,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484618504] [2023-08-29 18:08:48,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:48,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:48,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:48,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:48,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:48,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-29 18:08:48,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:48,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-29 18:08:48,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:48,260 INFO L130 PetriNetUnfolder]: 179/384 cut-off events. [2023-08-29 18:08:48,260 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2023-08-29 18:08:48,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 384 events. 179/384 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1667 event pairs, 130 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 414. Up to 283 conditions per place. [2023-08-29 18:08:48,263 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 26 selfloop transitions, 3 changer transitions 3/36 dead transitions. [2023-08-29 18:08:48,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 191 flow [2023-08-29 18:08:48,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:48,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2023-08-29 18:08:48,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573208722741433 [2023-08-29 18:08:48,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2023-08-29 18:08:48,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2023-08-29 18:08:48,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:48,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2023-08-29 18:08:48,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,268 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 80 flow. Second operand 3 states and 184 transitions. [2023-08-29 18:08:48,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 191 flow [2023-08-29 18:08:48,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:08:48,270 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 95 flow [2023-08-29 18:08:48,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-08-29 18:08:48,271 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-08-29 18:08:48,272 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 95 flow [2023-08-29 18:08:48,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:48,272 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:08:48,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:08:48,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2023-08-29 18:08:48,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:48,273 INFO L85 PathProgramCache]: Analyzing trace with hash -859771340, now seen corresponding path program 1 times [2023-08-29 18:08:48,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:48,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773389514] [2023-08-29 18:08:48,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:48,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:08:48,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773389514] [2023-08-29 18:08:48,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773389514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:48,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:48,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:48,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652145850] [2023-08-29 18:08:48,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:48,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:48,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:48,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:48,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-29 18:08:48,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:48,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-29 18:08:48,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:48,383 INFO L130 PetriNetUnfolder]: 187/388 cut-off events. [2023-08-29 18:08:48,383 INFO L131 PetriNetUnfolder]: For 202/206 co-relation queries the response was YES. [2023-08-29 18:08:48,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 388 events. 187/388 cut-off events. For 202/206 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1584 event pairs, 134 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 338. Up to 310 conditions per place. [2023-08-29 18:08:48,386 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 25 selfloop transitions, 4 changer transitions 3/36 dead transitions. [2023-08-29 18:08:48,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 36 transitions, 197 flow [2023-08-29 18:08:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2023-08-29 18:08:48,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5700934579439252 [2023-08-29 18:08:48,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2023-08-29 18:08:48,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2023-08-29 18:08:48,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:48,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2023-08-29 18:08:48,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,391 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 95 flow. Second operand 3 states and 183 transitions. [2023-08-29 18:08:48,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 36 transitions, 197 flow [2023-08-29 18:08:48,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:08:48,393 INFO L231 Difference]: Finished difference. Result has 32 places, 27 transitions, 116 flow [2023-08-29 18:08:48,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=32, PETRI_TRANSITIONS=27} [2023-08-29 18:08:48,394 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2023-08-29 18:08:48,394 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 116 flow [2023-08-29 18:08:48,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:48,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:48,395 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 18:08:48,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:08:48,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2023-08-29 18:08:48,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash -885979417, now seen corresponding path program 1 times [2023-08-29 18:08:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:48,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133117854] [2023-08-29 18:08:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:08:48,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:08:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:08:48,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:08:48,420 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:08:48,420 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-08-29 18:08:48,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-29 18:08:48,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2023-08-29 18:08:48,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-29 18:08:48,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-29 18:08:48,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:08:48,421 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 18:08:48,422 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:08:48,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 18:08:48,434 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:08:48,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 178 flow [2023-08-29 18:08:48,462 INFO L130 PetriNetUnfolder]: 20/243 cut-off events. [2023-08-29 18:08:48,463 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 18:08:48,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 243 events. 20/243 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 662 event pairs, 1 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 147. Up to 16 conditions per place. [2023-08-29 18:08:48,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 74 transitions, 178 flow [2023-08-29 18:08:48,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 74 transitions, 178 flow [2023-08-29 18:08:48,464 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:08:48,465 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 74 transitions, 178 flow [2023-08-29 18:08:48,465 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 74 transitions, 178 flow [2023-08-29 18:08:48,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 178 flow [2023-08-29 18:08:48,483 INFO L130 PetriNetUnfolder]: 20/243 cut-off events. [2023-08-29 18:08:48,483 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 18:08:48,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 243 events. 20/243 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 662 event pairs, 1 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 147. Up to 16 conditions per place. [2023-08-29 18:08:48,487 INFO L119 LiptonReduction]: Number of co-enabled transitions 2376 [2023-08-29 18:08:49,359 INFO L134 LiptonReduction]: Checked pairs total: 4780 [2023-08-29 18:08:49,359 INFO L136 LiptonReduction]: Total number of compositions: 49 [2023-08-29 18:08:49,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:08:49,362 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;@2705fabc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:08:49,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-29 18:08:49,363 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-29 18:08:49,363 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:08:49,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:49,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 18:08:49,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:08:49,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 457122, now seen corresponding path program 1 times [2023-08-29 18:08:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373576633] [2023-08-29 18:08:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:49,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:08:49,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:49,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373576633] [2023-08-29 18:08:49,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373576633] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:49,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:49,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994481058] [2023-08-29 18:08:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:49,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:49,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:49,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 123 [2023-08-29 18:08:49,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:49,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 123 [2023-08-29 18:08:49,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:49,641 INFO L130 PetriNetUnfolder]: 1145/2018 cut-off events. [2023-08-29 18:08:49,642 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2023-08-29 18:08:49,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4053 conditions, 2018 events. 1145/2018 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 10731 event pairs, 585 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 699. Up to 1170 conditions per place. [2023-08-29 18:08:49,652 INFO L137 encePairwiseOnDemand]: 117/123 looper letters, 34 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-29 18:08:49,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 44 transitions, 203 flow [2023-08-29 18:08:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2023-08-29 18:08:49,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5853658536585366 [2023-08-29 18:08:49,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2023-08-29 18:08:49,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2023-08-29 18:08:49,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:49,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2023-08-29 18:08:49,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,658 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 88 flow. Second operand 3 states and 216 transitions. [2023-08-29 18:08:49,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 44 transitions, 203 flow [2023-08-29 18:08:49,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 203 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:08:49,660 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 108 flow [2023-08-29 18:08:49,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-08-29 18:08:49,661 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2023-08-29 18:08:49,661 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 108 flow [2023-08-29 18:08:49,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:49,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:08:49,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:08:49,663 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:08:49,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash 745874588, now seen corresponding path program 1 times [2023-08-29 18:08:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:49,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498700007] [2023-08-29 18:08:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:49,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:08:49,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:49,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498700007] [2023-08-29 18:08:49,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498700007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:49,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:49,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:49,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9968973] [2023-08-29 18:08:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:49,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:49,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:49,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:49,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 123 [2023-08-29 18:08:49,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:49,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 123 [2023-08-29 18:08:49,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:49,935 INFO L130 PetriNetUnfolder]: 1557/2658 cut-off events. [2023-08-29 18:08:49,936 INFO L131 PetriNetUnfolder]: For 866/866 co-relation queries the response was YES. [2023-08-29 18:08:49,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5826 conditions, 2658 events. 1557/2658 cut-off events. For 866/866 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 14476 event pairs, 1163 based on Foata normal form. 0/2546 useless extension candidates. Maximal degree in co-relation 2213. Up to 2071 conditions per place. [2023-08-29 18:08:49,951 INFO L137 encePairwiseOnDemand]: 118/123 looper letters, 39 selfloop transitions, 4 changer transitions 1/49 dead transitions. [2023-08-29 18:08:49,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 49 transitions, 267 flow [2023-08-29 18:08:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:49,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-08-29 18:08:49,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907859078590786 [2023-08-29 18:08:49,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-08-29 18:08:49,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-08-29 18:08:49,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:49,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-08-29 18:08:49,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,955 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 108 flow. Second operand 3 states and 218 transitions. [2023-08-29 18:08:49,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 49 transitions, 267 flow [2023-08-29 18:08:49,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:08:49,959 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 130 flow [2023-08-29 18:08:49,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-08-29 18:08:49,959 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-08-29 18:08:49,960 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 130 flow [2023-08-29 18:08:49,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:49,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:49,960 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:08:49,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:08:49,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:08:49,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:49,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2122393726, now seen corresponding path program 1 times [2023-08-29 18:08:49,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:49,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329024498] [2023-08-29 18:08:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:49,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:08:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:08:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:08:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329024498] [2023-08-29 18:08:49,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329024498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:08:49,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:08:49,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:08:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751111596] [2023-08-29 18:08:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:08:49,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:08:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:08:49,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:08:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:08:50,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 123 [2023-08-29 18:08:50,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:50,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:08:50,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 123 [2023-08-29 18:08:50,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:08:50,252 INFO L130 PetriNetUnfolder]: 1831/3129 cut-off events. [2023-08-29 18:08:50,252 INFO L131 PetriNetUnfolder]: For 1570/1623 co-relation queries the response was YES. [2023-08-29 18:08:50,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7823 conditions, 3129 events. 1831/3129 cut-off events. For 1570/1623 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 17657 event pairs, 1284 based on Foata normal form. 0/2969 useless extension candidates. Maximal degree in co-relation 2156. Up to 2482 conditions per place. [2023-08-29 18:08:50,269 INFO L137 encePairwiseOnDemand]: 118/123 looper letters, 39 selfloop transitions, 5 changer transitions 1/50 dead transitions. [2023-08-29 18:08:50,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 284 flow [2023-08-29 18:08:50,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:08:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:08:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-08-29 18:08:50,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5880758807588076 [2023-08-29 18:08:50,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-08-29 18:08:50,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-08-29 18:08:50,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:08:50,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-08-29 18:08:50,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:50,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:50,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:50,273 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 130 flow. Second operand 3 states and 217 transitions. [2023-08-29 18:08:50,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 284 flow [2023-08-29 18:08:50,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 50 transitions, 279 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:08:50,276 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 159 flow [2023-08-29 18:08:50,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2023-08-29 18:08:50,306 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2023-08-29 18:08:50,306 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 159 flow [2023-08-29 18:08:50,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:08:50,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:08:50,306 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:08:50,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:08:50,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-29 18:08:50,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:08:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash 630966413, now seen corresponding path program 1 times [2023-08-29 18:08:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:08:50,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580257843] [2023-08-29 18:08:50,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:08:50,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:08:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:08:50,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:08:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:08:50,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:08:50,327 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:08:50,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-29 18:08:50,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-29 18:08:50,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-29 18:08:50,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-29 18:08:50,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-29 18:08:50,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-29 18:08:50,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:08:50,328 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 18:08:50,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2023-08-29 18:08:50,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:08:50,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:08:50 BasicIcfg [2023-08-29 18:08:50,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:08:50,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:08:50,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:08:50,363 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:08:50,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:08:45" (3/4) ... [2023-08-29 18:08:50,366 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 18:08:50,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:08:50,368 INFO L158 Benchmark]: Toolchain (without parser) took 6306.92ms. Allocated memory was 73.4MB in the beginning and 180.4MB in the end (delta: 107.0MB). Free memory was 49.0MB in the beginning and 120.3MB in the end (delta: -71.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2023-08-29 18:08:50,368 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:08:50,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.01ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.7MB in the beginning and 55.1MB in the end (delta: -6.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-29 18:08:50,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.57ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 52.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:08:50,368 INFO L158 Benchmark]: Boogie Preprocessor took 34.64ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 51.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:08:50,369 INFO L158 Benchmark]: RCFGBuilder took 424.86ms. Allocated memory is still 88.1MB. Free memory was 51.4MB in the beginning and 62.0MB in the end (delta: -10.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-08-29 18:08:50,369 INFO L158 Benchmark]: TraceAbstraction took 5262.71ms. Allocated memory was 88.1MB in the beginning and 180.4MB in the end (delta: 92.3MB). Free memory was 61.4MB in the beginning and 120.3MB in the end (delta: -58.8MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-08-29 18:08:50,369 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 180.4MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:08:50,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.01ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.7MB in the beginning and 55.1MB in the end (delta: -6.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.57ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 52.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.64ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 51.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.86ms. Allocated memory is still 88.1MB. Free memory was 51.4MB in the beginning and 62.0MB in the end (delta: -10.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5262.71ms. Allocated memory was 88.1MB in the beginning and 180.4MB in the end (delta: 92.3MB). Free memory was 61.4MB in the beginning and 120.3MB in the end (delta: -58.8MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 180.4MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 52 PlacesBefore, 15 PlacesAfterwards, 52 TransitionsBefore, 13 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 46 TotalNumberOfCompositions, 475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 475, independent: 475, independent conditional: 0, independent unconditional: 475, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 269, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 475, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 269, unknown conditional: 0, unknown unconditional: 269] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 64 PlacesBefore, 26 PlacesAfterwards, 63 TransitionsBefore, 23 TransitionsAfterwards, 1368 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 44 TotalNumberOfCompositions, 2602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2012, independent: 1951, independent conditional: 0, independent unconditional: 1951, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 782, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2012, independent: 1180, independent conditional: 0, independent unconditional: 1180, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 782, unknown conditional: 0, unknown unconditional: 782] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 76 PlacesBefore, 33 PlacesAfterwards, 74 TransitionsBefore, 29 TransitionsAfterwards, 2376 CoEnabledTransitionPairs, 4 FixpointIterations, 8 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 49 TotalNumberOfCompositions, 4780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2774, independent: 2686, independent conditional: 0, independent unconditional: 2686, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1221, independent: 1200, independent conditional: 0, independent unconditional: 1200, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2774, independent: 1486, independent conditional: 0, independent unconditional: 1486, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 1221, unknown conditional: 0, unknown unconditional: 1221] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id[10]; [L924] 0 int i; [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-2] [L925] 0 i++ VAL [arg={0:0}, i=1, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=44, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=43] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 926]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 60 locations, 4 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: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 2 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 70 locations, 5 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 11 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 80 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 232 IncrementalHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 22 mSDtfsCounter, 232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 18:08:50,439 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