./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_06-ptra_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/09-regions_06-ptra_nr.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 e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:15:10,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:15:10,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:15:10,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:15:10,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:15:10,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:15:10,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:15:10,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:15:10,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:15:10,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:15:10,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:15:10,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:15:10,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:15:10,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:15:10,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:15:10,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:15:10,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:15:10,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:15:10,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:15:10,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:15:10,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:15:10,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:15:10,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:15:10,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:15:10,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:15:10,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:15:10,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:15:10,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:15:10,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:15:10,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:15:10,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:15:10,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:15:10,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:15:10,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:15:10,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:15:10,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:15:10,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:15:10,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:15:10,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:15:10,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:15:10,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:15:10,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:15:10,319 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:15:10,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:15:10,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:15:10,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:15:10,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:15:10,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:15:10,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:15:10,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:15:10,323 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:15:10,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:15:10,324 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:15:10,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:15:10,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:15:10,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:15:10,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:15:10,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:15:10,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:15:10,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:15:10,326 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:15:10,326 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:15:10,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:15:10,326 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:15:10,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:15:10,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:15:10,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:15:10,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:15:10,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:15:10,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:15:10,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:15:10,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:15:10,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:15:10,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:15:10,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:15:10,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:15:10,329 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:15:10,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:15:10,330 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:15:10,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:15:10,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:15:10,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:15:10,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:15:10,660 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:15:10,661 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:15:10,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_06-ptra_nr.i [2023-08-29 02:15:11,936 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:15:12,230 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:15:12,230 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_06-ptra_nr.i [2023-08-29 02:15:12,249 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/783d2cc1f/d0298a695bdb4f33a8715b5eca6eef35/FLAG268053a2a [2023-08-29 02:15:12,262 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/783d2cc1f/d0298a695bdb4f33a8715b5eca6eef35 [2023-08-29 02:15:12,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:15:12,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:15:12,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:15:12,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:15:12,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:15:12,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:12,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a67ddb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12, skipping insertion in model container [2023-08-29 02:15:12,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:12,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:15:12,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:15:12,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:15:12,767 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:15:12,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:15:12,931 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:15:12,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12 WrapperNode [2023-08-29 02:15:12,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:15:12,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:15:12,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:15:12,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:15:12,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:12,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,020 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2023-08-29 02:15:13,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:15:13,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:15:13,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:15:13,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:15:13,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,086 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:15:13,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:15:13,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:15:13,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:15:13,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (1/1) ... [2023-08-29 02:15:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:15:13,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:15:13,147 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 02:15:13,176 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 02:15:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:15:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:15:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:15:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:15:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:15:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:15:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:15:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:15:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:15:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:15:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:15:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:15:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:15:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:15:13,196 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 02:15:13,412 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:15:13,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:15:13,881 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:15:13,889 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:15:13,890 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:15:13,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:15:13 BoogieIcfgContainer [2023-08-29 02:15:13,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:15:13,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:15:13,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:15:13,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:15:13,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:15:12" (1/3) ... [2023-08-29 02:15:13,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d4cca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:15:13, skipping insertion in model container [2023-08-29 02:15:13,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:15:12" (2/3) ... [2023-08-29 02:15:13,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d4cca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:15:13, skipping insertion in model container [2023-08-29 02:15:13,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:15:13" (3/3) ... [2023-08-29 02:15:13,903 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2023-08-29 02:15:13,909 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:15:13,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:15:13,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-29 02:15:13,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:15:14,018 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:15:14,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 237 transitions, 479 flow [2023-08-29 02:15:14,158 INFO L130 PetriNetUnfolder]: 0/236 cut-off events. [2023-08-29 02:15:14,158 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:15:14,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 236 events. 0/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:15:14,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 237 transitions, 479 flow [2023-08-29 02:15:14,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 240 places, 236 transitions, 475 flow [2023-08-29 02:15:14,176 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:15:14,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 236 transitions, 475 flow [2023-08-29 02:15:14,192 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 236 transitions, 475 flow [2023-08-29 02:15:14,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 236 transitions, 475 flow [2023-08-29 02:15:14,255 INFO L130 PetriNetUnfolder]: 0/236 cut-off events. [2023-08-29 02:15:14,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:15:14,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 236 events. 0/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 91 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:15:14,261 INFO L119 LiptonReduction]: Number of co-enabled transitions 4554 [2023-08-29 02:15:33,341 WARN L222 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 113 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:39,784 WARN L222 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 113 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:53,455 WARN L222 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:58,491 WARN L222 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:04,454 WARN L222 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:26,528 WARN L222 SmtUtils]: Spent 17.95s on a formula simplification that was a NOOP. DAG size: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:33,998 WARN L222 SmtUtils]: Spent 7.47s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:54,906 WARN L222 SmtUtils]: Spent 20.90s on a formula simplification that was a NOOP. DAG size: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:17:03,590 WARN L222 SmtUtils]: Spent 8.68s on a formula simplification that was a NOOP. DAG size: 203 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:18:04,916 WARN L222 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 331 DAG size of output: 327 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:18:53,060 WARN L222 SmtUtils]: Spent 48.13s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:20:17,397 WARN L222 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 331 DAG size of output: 327 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:21:03,232 WARN L222 SmtUtils]: Spent 45.82s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:21:03,242 INFO L134 LiptonReduction]: Checked pairs total: 36120 [2023-08-29 02:21:03,242 INFO L136 LiptonReduction]: Total number of compositions: 214 [2023-08-29 02:21:03,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:21:03,273 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;@7d20b16d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:21:03,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-29 02:21:03,276 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:21:03,276 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:21:03,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:03,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:21:03,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:03,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash 769, now seen corresponding path program 1 times [2023-08-29 02:21:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:03,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485475502] [2023-08-29 02:21:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:03,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:03,403 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 02:21:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485475502] [2023-08-29 02:21:03,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485475502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:03,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:03,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:21:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443666470] [2023-08-29 02:21:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:03,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:21:03,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:03,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:21:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:21:03,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 451 [2023-08-29 02:21:03,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 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 02:21:03,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:03,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 451 [2023-08-29 02:21:03,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:03,751 INFO L130 PetriNetUnfolder]: 98/458 cut-off events. [2023-08-29 02:21:03,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:21:03,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 458 events. 98/458 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2177 event pairs, 98 based on Foata normal form. 0/432 useless extension candidates. Maximal degree in co-relation 673. Up to 220 conditions per place. [2023-08-29 02:21:03,765 INFO L137 encePairwiseOnDemand]: 439/451 looper letters, 23 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 02:21:03,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 179 flow [2023-08-29 02:21:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:21:03,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:21:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 507 transitions. [2023-08-29 02:21:03,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5620842572062085 [2023-08-29 02:21:03,785 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 507 transitions. [2023-08-29 02:21:03,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 507 transitions. [2023-08-29 02:21:03,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:03,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 507 transitions. [2023-08-29 02:21:03,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 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 02:21:03,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 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 02:21:03,803 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 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 02:21:03,807 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 507 transitions. [2023-08-29 02:21:03,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 179 flow [2023-08-29 02:21:03,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:03,812 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 02:21:03,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-29 02:21:03,817 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2023-08-29 02:21:03,817 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 02:21:03,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 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 02:21:03,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:03,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:21:03,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:21:03,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:03,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:03,828 INFO L85 PathProgramCache]: Analyzing trace with hash 748433705, now seen corresponding path program 1 times [2023-08-29 02:21:03,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:03,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861687796] [2023-08-29 02:21:03,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:03,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:04,117 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 02:21:04,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:04,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861687796] [2023-08-29 02:21:04,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861687796] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:04,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:04,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:21:04,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962229229] [2023-08-29 02:21:04,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:04,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:21:04,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:04,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:21:04,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:21:04,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 451 [2023-08-29 02:21:04,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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 02:21:04,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:04,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 451 [2023-08-29 02:21:04,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:04,503 INFO L130 PetriNetUnfolder]: 120/512 cut-off events. [2023-08-29 02:21:04,504 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:21:04,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 512 events. 120/512 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2445 event pairs, 120 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 779. Up to 265 conditions per place. [2023-08-29 02:21:04,506 INFO L137 encePairwiseOnDemand]: 447/451 looper letters, 24 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 02:21:04,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 176 flow [2023-08-29 02:21:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:21:04,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:21:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2023-08-29 02:21:04,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50849963045085 [2023-08-29 02:21:04,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 688 transitions. [2023-08-29 02:21:04,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 688 transitions. [2023-08-29 02:21:04,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:04,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 688 transitions. [2023-08-29 02:21:04,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 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 02:21:04,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 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 02:21:04,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 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 02:21:04,515 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 688 transitions. [2023-08-29 02:21:04,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 176 flow [2023-08-29 02:21:04,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:04,517 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 02:21:04,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-29 02:21:04,518 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2023-08-29 02:21:04,518 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 02:21:04,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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 02:21:04,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:04,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:04,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:21:04,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:04,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:04,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2100724888, now seen corresponding path program 1 times [2023-08-29 02:21:04,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:04,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534415390] [2023-08-29 02:21:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:04,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:05,166 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 02:21:05,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:05,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534415390] [2023-08-29 02:21:05,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534415390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:05,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:05,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:21:05,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968388471] [2023-08-29 02:21:05,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:05,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:21:05,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:05,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:21:05,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:21:05,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 02:21:05,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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 02:21:05,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:05,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 02:21:05,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:06,064 INFO L130 PetriNetUnfolder]: 495/1186 cut-off events. [2023-08-29 02:21:06,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:21:06,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 1186 events. 495/1186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5646 event pairs, 380 based on Foata normal form. 0/1151 useless extension candidates. Maximal degree in co-relation 2230. Up to 950 conditions per place. [2023-08-29 02:21:06,070 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 74 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2023-08-29 02:21:06,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 126 transitions, 478 flow [2023-08-29 02:21:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:21:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:21:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2023-08-29 02:21:06,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4360679970436068 [2023-08-29 02:21:06,073 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1180 transitions. [2023-08-29 02:21:06,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1180 transitions. [2023-08-29 02:21:06,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:06,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1180 transitions. [2023-08-29 02:21:06,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.66666666666666) internal successors, (1180), 6 states have internal predecessors, (1180), 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 02:21:06,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:21:06,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:21:06,103 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1180 transitions. [2023-08-29 02:21:06,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 126 transitions, 478 flow [2023-08-29 02:21:06,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 126 transitions, 477 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:06,106 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 02:21:06,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-29 02:21:06,107 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-29 02:21:06,107 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 02:21:06,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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 02:21:06,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:06,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:06,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:21:06,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:06,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1871749258, now seen corresponding path program 1 times [2023-08-29 02:21:06,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103513796] [2023-08-29 02:21:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:06,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:06,479 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 02:21:06,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:06,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103513796] [2023-08-29 02:21:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103513796] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:06,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:06,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:21:06,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124606099] [2023-08-29 02:21:06,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:06,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:21:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:06,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:21:06,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:21:06,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 451 [2023-08-29 02:21:06,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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 02:21:06,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:06,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 451 [2023-08-29 02:21:06,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:07,732 INFO L130 PetriNetUnfolder]: 743/1862 cut-off events. [2023-08-29 02:21:07,732 INFO L131 PetriNetUnfolder]: For 253/264 co-relation queries the response was YES. [2023-08-29 02:21:07,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1862 events. 743/1862 cut-off events. For 253/264 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10942 event pairs, 92 based on Foata normal form. 0/1797 useless extension candidates. Maximal degree in co-relation 4113. Up to 820 conditions per place. [2023-08-29 02:21:07,742 INFO L137 encePairwiseOnDemand]: 423/451 looper letters, 151 selfloop transitions, 77 changer transitions 0/258 dead transitions. [2023-08-29 02:21:07,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 258 transitions, 1206 flow [2023-08-29 02:21:07,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:21:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:21:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2023-08-29 02:21:07,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4663710273466371 [2023-08-29 02:21:07,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2023-08-29 02:21:07,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2023-08-29 02:21:07,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:07,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2023-08-29 02:21:07,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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 02:21:07,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:21:07,757 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:21:07,757 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1262 transitions. [2023-08-29 02:21:07,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 258 transitions, 1206 flow [2023-08-29 02:21:07,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 258 transitions, 1206 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:07,765 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 02:21:07,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-29 02:21:07,766 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2023-08-29 02:21:07,766 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 02:21:07,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 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 02:21:07,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:07,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:07,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:21:07,768 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:07,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1855574645, now seen corresponding path program 1 times [2023-08-29 02:21:07,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:07,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968500416] [2023-08-29 02:21:07,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:08,590 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 02:21:08,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:08,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968500416] [2023-08-29 02:21:08,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968500416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:08,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:08,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:08,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236564597] [2023-08-29 02:21:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:08,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:08,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:08,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:08,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:09,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 451 [2023-08-29 02:21:09,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 175.2) internal successors, (1752), 10 states have internal predecessors, (1752), 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 02:21:09,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:09,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 451 [2023-08-29 02:21:09,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:10,769 INFO L130 PetriNetUnfolder]: 873/2101 cut-off events. [2023-08-29 02:21:10,770 INFO L131 PetriNetUnfolder]: For 1536/1545 co-relation queries the response was YES. [2023-08-29 02:21:10,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6278 conditions, 2101 events. 873/2101 cut-off events. For 1536/1545 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12062 event pairs, 325 based on Foata normal form. 0/2066 useless extension candidates. Maximal degree in co-relation 6265. Up to 1472 conditions per place. [2023-08-29 02:21:10,783 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 251 selfloop transitions, 64 changer transitions 2/347 dead transitions. [2023-08-29 02:21:10,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 347 transitions, 2363 flow [2023-08-29 02:21:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:21:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:21:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2814 transitions. [2023-08-29 02:21:10,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41596452328159644 [2023-08-29 02:21:10,791 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2814 transitions. [2023-08-29 02:21:10,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2814 transitions. [2023-08-29 02:21:10,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:10,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2814 transitions. [2023-08-29 02:21:10,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 187.6) internal successors, (2814), 15 states have internal predecessors, (2814), 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 02:21:10,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:21:10,829 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:21:10,829 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2814 transitions. [2023-08-29 02:21:10,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 347 transitions, 2363 flow [2023-08-29 02:21:10,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 347 transitions, 2345 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:10,848 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 02:21:10,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-29 02:21:10,851 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2023-08-29 02:21:10,851 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 02:21:10,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 175.2) internal successors, (1752), 10 states have internal predecessors, (1752), 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 02:21:10,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:10,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:10,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:21:10,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:10,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash -266251986, now seen corresponding path program 1 times [2023-08-29 02:21:10,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:10,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079691348] [2023-08-29 02:21:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:10,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:11,543 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 02:21:11,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:11,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079691348] [2023-08-29 02:21:11,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079691348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:11,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:11,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:11,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913781516] [2023-08-29 02:21:11,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:11,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:11,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:12,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:12,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:12,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:12,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:12,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:14,646 INFO L130 PetriNetUnfolder]: 946/2431 cut-off events. [2023-08-29 02:21:14,647 INFO L131 PetriNetUnfolder]: For 2347/2384 co-relation queries the response was YES. [2023-08-29 02:21:14,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7782 conditions, 2431 events. 946/2431 cut-off events. For 2347/2384 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 15814 event pairs, 117 based on Foata normal form. 20/2421 useless extension candidates. Maximal degree in co-relation 7763. Up to 730 conditions per place. [2023-08-29 02:21:14,664 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 288 selfloop transitions, 121 changer transitions 2/447 dead transitions. [2023-08-29 02:21:14,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 447 transitions, 3269 flow [2023-08-29 02:21:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:21:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:21:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2383 transitions. [2023-08-29 02:21:14,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44031781226903177 [2023-08-29 02:21:14,672 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2383 transitions. [2023-08-29 02:21:14,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2383 transitions. [2023-08-29 02:21:14,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:14,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2383 transitions. [2023-08-29 02:21:14,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 198.58333333333334) internal successors, (2383), 12 states have internal predecessors, (2383), 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 02:21:14,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 451.0) internal successors, (5863), 13 states have internal predecessors, (5863), 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 02:21:14,687 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 451.0) internal successors, (5863), 13 states have internal predecessors, (5863), 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 02:21:14,687 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 2383 transitions. [2023-08-29 02:21:14,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 447 transitions, 3269 flow [2023-08-29 02:21:14,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 447 transitions, 3257 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:14,709 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-29 02:21:14,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2023-08-29 02:21:14,712 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 44 predicate places. [2023-08-29 02:21:14,712 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-29 02:21:14,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:14,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:14,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:14,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:21:14,713 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:14,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:14,714 INFO L85 PathProgramCache]: Analyzing trace with hash -586215842, now seen corresponding path program 2 times [2023-08-29 02:21:14,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:14,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149551415] [2023-08-29 02:21:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:15,481 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 02:21:15,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:15,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149551415] [2023-08-29 02:21:15,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149551415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:15,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:15,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:15,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286041451] [2023-08-29 02:21:15,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:15,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:15,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:15,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:16,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 02:21:16,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:21:16,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:16,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 02:21:16,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:18,020 INFO L130 PetriNetUnfolder]: 1197/3046 cut-off events. [2023-08-29 02:21:18,021 INFO L131 PetriNetUnfolder]: For 5855/5889 co-relation queries the response was YES. [2023-08-29 02:21:18,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11099 conditions, 3046 events. 1197/3046 cut-off events. For 5855/5889 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 21424 event pairs, 127 based on Foata normal form. 29/3030 useless extension candidates. Maximal degree in co-relation 11070. Up to 956 conditions per place. [2023-08-29 02:21:18,049 INFO L137 encePairwiseOnDemand]: 425/451 looper letters, 294 selfloop transitions, 125 changer transitions 0/455 dead transitions. [2023-08-29 02:21:18,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 455 transitions, 4307 flow [2023-08-29 02:21:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:21:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:21:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2124 transitions. [2023-08-29 02:21:18,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4281394880064503 [2023-08-29 02:21:18,056 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2124 transitions. [2023-08-29 02:21:18,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2124 transitions. [2023-08-29 02:21:18,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:18,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2124 transitions. [2023-08-29 02:21:18,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 193.0909090909091) internal successors, (2124), 11 states have internal predecessors, (2124), 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 02:21:18,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:21:18,070 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:21:18,070 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 11 states and 2124 transitions. [2023-08-29 02:21:18,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 455 transitions, 4307 flow [2023-08-29 02:21:18,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 455 transitions, 4295 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:18,112 INFO L231 Difference]: Finished difference. Result has 140 places, 307 transitions, 3098 flow [2023-08-29 02:21:18,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3098, PETRI_PLACES=140, PETRI_TRANSITIONS=307} [2023-08-29 02:21:18,113 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 59 predicate places. [2023-08-29 02:21:18,113 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 307 transitions, 3098 flow [2023-08-29 02:21:18,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:21:18,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:18,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:18,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:21:18,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:18,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash 77834064, now seen corresponding path program 3 times [2023-08-29 02:21:18,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:18,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255986584] [2023-08-29 02:21:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:18,732 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 02:21:18,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:18,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255986584] [2023-08-29 02:21:18,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255986584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:18,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:18,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:18,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111652774] [2023-08-29 02:21:18,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:18,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:18,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:18,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:19,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:19,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 307 transitions, 3098 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:19,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:19,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:19,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:21,469 INFO L130 PetriNetUnfolder]: 1521/3877 cut-off events. [2023-08-29 02:21:21,469 INFO L131 PetriNetUnfolder]: For 12014/12063 co-relation queries the response was YES. [2023-08-29 02:21:21,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15747 conditions, 3877 events. 1521/3877 cut-off events. For 12014/12063 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 29284 event pairs, 273 based on Foata normal form. 22/3841 useless extension candidates. Maximal degree in co-relation 15712. Up to 1013 conditions per place. [2023-08-29 02:21:21,504 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 360 selfloop transitions, 162 changer transitions 2/560 dead transitions. [2023-08-29 02:21:21,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 560 transitions, 5870 flow [2023-08-29 02:21:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:21:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:21:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2560 transitions. [2023-08-29 02:21:21,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4366365341975098 [2023-08-29 02:21:21,511 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2560 transitions. [2023-08-29 02:21:21,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2560 transitions. [2023-08-29 02:21:21,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:21,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2560 transitions. [2023-08-29 02:21:21,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 196.92307692307693) internal successors, (2560), 13 states have internal predecessors, (2560), 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 02:21:21,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 451.0) internal successors, (6314), 14 states have internal predecessors, (6314), 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 02:21:21,527 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 451.0) internal successors, (6314), 14 states have internal predecessors, (6314), 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 02:21:21,527 INFO L175 Difference]: Start difference. First operand has 140 places, 307 transitions, 3098 flow. Second operand 13 states and 2560 transitions. [2023-08-29 02:21:21,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 560 transitions, 5870 flow [2023-08-29 02:21:21,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 560 transitions, 5847 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:21:21,595 INFO L231 Difference]: Finished difference. Result has 160 places, 359 transitions, 4421 flow [2023-08-29 02:21:21,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=3086, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4421, PETRI_PLACES=160, PETRI_TRANSITIONS=359} [2023-08-29 02:21:21,596 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 79 predicate places. [2023-08-29 02:21:21,596 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 359 transitions, 4421 flow [2023-08-29 02:21:21,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:21,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:21,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:21,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:21:21,598 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:21,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1439346150, now seen corresponding path program 4 times [2023-08-29 02:21:21,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:21,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504888679] [2023-08-29 02:21:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:21,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:22,277 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 02:21:22,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:22,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504888679] [2023-08-29 02:21:22,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504888679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:22,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:22,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:22,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12019729] [2023-08-29 02:21:22,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:22,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:22,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:22,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:22,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:22,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 02:21:22,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 359 transitions, 4421 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:21:22,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:22,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 02:21:22,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:25,172 INFO L130 PetriNetUnfolder]: 1888/4760 cut-off events. [2023-08-29 02:21:25,172 INFO L131 PetriNetUnfolder]: For 22325/22396 co-relation queries the response was YES. [2023-08-29 02:21:25,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21501 conditions, 4760 events. 1888/4760 cut-off events. For 22325/22396 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 37454 event pairs, 179 based on Foata normal form. 23/4717 useless extension candidates. Maximal degree in co-relation 21457. Up to 1889 conditions per place. [2023-08-29 02:21:25,216 INFO L137 encePairwiseOnDemand]: 423/451 looper letters, 324 selfloop transitions, 214 changer transitions 0/574 dead transitions. [2023-08-29 02:21:25,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 574 transitions, 7740 flow [2023-08-29 02:21:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:21:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:21:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2080 transitions. [2023-08-29 02:21:25,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4192703084055634 [2023-08-29 02:21:25,222 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2080 transitions. [2023-08-29 02:21:25,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2080 transitions. [2023-08-29 02:21:25,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:25,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2080 transitions. [2023-08-29 02:21:25,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 189.0909090909091) internal successors, (2080), 11 states have internal predecessors, (2080), 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 02:21:25,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:21:25,290 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:21:25,290 INFO L175 Difference]: Start difference. First operand has 160 places, 359 transitions, 4421 flow. Second operand 11 states and 2080 transitions. [2023-08-29 02:21:25,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 574 transitions, 7740 flow [2023-08-29 02:21:25,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 574 transitions, 7705 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:25,438 INFO L231 Difference]: Finished difference. Result has 176 places, 431 transitions, 6363 flow [2023-08-29 02:21:25,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=4399, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6363, PETRI_PLACES=176, PETRI_TRANSITIONS=431} [2023-08-29 02:21:25,440 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 95 predicate places. [2023-08-29 02:21:25,440 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 431 transitions, 6363 flow [2023-08-29 02:21:25,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:21:25,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:25,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:25,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:21:25,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:25,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -418452818, now seen corresponding path program 5 times [2023-08-29 02:21:25,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:25,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101440143] [2023-08-29 02:21:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:25,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:26,053 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 02:21:26,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:26,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101440143] [2023-08-29 02:21:26,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101440143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:26,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:26,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:26,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482701905] [2023-08-29 02:21:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:26,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:26,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:26,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:26,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:26,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 02:21:26,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 431 transitions, 6363 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:21:26,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:26,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 02:21:26,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:28,869 INFO L130 PetriNetUnfolder]: 2142/5364 cut-off events. [2023-08-29 02:21:28,869 INFO L131 PetriNetUnfolder]: For 36539/36661 co-relation queries the response was YES. [2023-08-29 02:21:28,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26321 conditions, 5364 events. 2142/5364 cut-off events. For 36539/36661 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 43191 event pairs, 268 based on Foata normal form. 49/5344 useless extension candidates. Maximal degree in co-relation 26270. Up to 1897 conditions per place. [2023-08-29 02:21:28,916 INFO L137 encePairwiseOnDemand]: 422/451 looper letters, 351 selfloop transitions, 229 changer transitions 0/616 dead transitions. [2023-08-29 02:21:28,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 616 transitions, 9366 flow [2023-08-29 02:21:28,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:21:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:21:28,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2109 transitions. [2023-08-29 02:21:28,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4251159040516025 [2023-08-29 02:21:28,922 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2109 transitions. [2023-08-29 02:21:28,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2109 transitions. [2023-08-29 02:21:28,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:28,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2109 transitions. [2023-08-29 02:21:28,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.72727272727272) internal successors, (2109), 11 states have internal predecessors, (2109), 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 02:21:28,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:21:28,934 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:21:28,934 INFO L175 Difference]: Start difference. First operand has 176 places, 431 transitions, 6363 flow. Second operand 11 states and 2109 transitions. [2023-08-29 02:21:28,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 616 transitions, 9366 flow [2023-08-29 02:21:29,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 616 transitions, 9303 flow, removed 26 selfloop flow, removed 3 redundant places. [2023-08-29 02:21:29,176 INFO L231 Difference]: Finished difference. Result has 190 places, 480 transitions, 7918 flow [2023-08-29 02:21:29,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=6304, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7918, PETRI_PLACES=190, PETRI_TRANSITIONS=480} [2023-08-29 02:21:29,178 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 109 predicate places. [2023-08-29 02:21:29,179 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 480 transitions, 7918 flow [2023-08-29 02:21:29,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:21:29,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:29,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:29,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:21:29,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:29,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:29,180 INFO L85 PathProgramCache]: Analyzing trace with hash 118720802, now seen corresponding path program 6 times [2023-08-29 02:21:29,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:29,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592058483] [2023-08-29 02:21:29,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:29,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:29,878 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 02:21:29,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:29,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592058483] [2023-08-29 02:21:29,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592058483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:29,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:29,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:29,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811524492] [2023-08-29 02:21:29,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:29,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:29,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:29,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:29,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:30,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:30,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 480 transitions, 7918 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:30,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:30,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:30,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:33,558 INFO L130 PetriNetUnfolder]: 2558/6429 cut-off events. [2023-08-29 02:21:33,558 INFO L131 PetriNetUnfolder]: For 53196/53337 co-relation queries the response was YES. [2023-08-29 02:21:33,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33106 conditions, 6429 events. 2558/6429 cut-off events. For 53196/53337 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 54783 event pairs, 229 based on Foata normal form. 71/6418 useless extension candidates. Maximal degree in co-relation 33048. Up to 2080 conditions per place. [2023-08-29 02:21:33,616 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 449 selfloop transitions, 345 changer transitions 3/833 dead transitions. [2023-08-29 02:21:33,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 833 transitions, 13061 flow [2023-08-29 02:21:33,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:21:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:21:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3472 transitions. [2023-08-29 02:21:33,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276915496427692 [2023-08-29 02:21:33,625 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3472 transitions. [2023-08-29 02:21:33,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3472 transitions. [2023-08-29 02:21:33,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:33,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3472 transitions. [2023-08-29 02:21:33,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 192.88888888888889) internal successors, (3472), 18 states have internal predecessors, (3472), 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 02:21:33,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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 02:21:33,644 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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 02:21:33,645 INFO L175 Difference]: Start difference. First operand has 190 places, 480 transitions, 7918 flow. Second operand 18 states and 3472 transitions. [2023-08-29 02:21:33,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 833 transitions, 13061 flow [2023-08-29 02:21:34,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 833 transitions, 12930 flow, removed 29 selfloop flow, removed 2 redundant places. [2023-08-29 02:21:34,118 INFO L231 Difference]: Finished difference. Result has 218 places, 591 transitions, 11257 flow [2023-08-29 02:21:34,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=7811, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11257, PETRI_PLACES=218, PETRI_TRANSITIONS=591} [2023-08-29 02:21:34,119 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 137 predicate places. [2023-08-29 02:21:34,120 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 591 transitions, 11257 flow [2023-08-29 02:21:34,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:34,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:34,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:34,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:21:34,121 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:34,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:34,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1344279614, now seen corresponding path program 7 times [2023-08-29 02:21:34,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:34,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053889756] [2023-08-29 02:21:34,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:34,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:34,756 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 02:21:34,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:34,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053889756] [2023-08-29 02:21:34,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053889756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:34,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:34,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:34,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525851188] [2023-08-29 02:21:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:34,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:34,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:34,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:34,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:35,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:35,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 591 transitions, 11257 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:35,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:35,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:35,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:38,631 INFO L130 PetriNetUnfolder]: 3079/7761 cut-off events. [2023-08-29 02:21:38,631 INFO L131 PetriNetUnfolder]: For 88659/88828 co-relation queries the response was YES. [2023-08-29 02:21:38,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43260 conditions, 7761 events. 3079/7761 cut-off events. For 88659/88828 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 68904 event pairs, 566 based on Foata normal form. 74/7735 useless extension candidates. Maximal degree in co-relation 43190. Up to 2452 conditions per place. [2023-08-29 02:21:38,700 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 573 selfloop transitions, 336 changer transitions 2/947 dead transitions. [2023-08-29 02:21:38,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 947 transitions, 17532 flow [2023-08-29 02:21:38,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:38,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:38,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2719 transitions. [2023-08-29 02:21:38,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306303452644916 [2023-08-29 02:21:38,705 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2719 transitions. [2023-08-29 02:21:38,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2719 transitions. [2023-08-29 02:21:38,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:38,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2719 transitions. [2023-08-29 02:21:38,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.21428571428572) internal successors, (2719), 14 states have internal predecessors, (2719), 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 02:21:38,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:21:38,718 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:21:38,718 INFO L175 Difference]: Start difference. First operand has 218 places, 591 transitions, 11257 flow. Second operand 14 states and 2719 transitions. [2023-08-29 02:21:38,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 947 transitions, 17532 flow [2023-08-29 02:21:39,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 947 transitions, 17419 flow, removed 53 selfloop flow, removed 1 redundant places. [2023-08-29 02:21:39,578 INFO L231 Difference]: Finished difference. Result has 242 places, 688 transitions, 14703 flow [2023-08-29 02:21:39,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=11163, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14703, PETRI_PLACES=242, PETRI_TRANSITIONS=688} [2023-08-29 02:21:39,579 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 161 predicate places. [2023-08-29 02:21:39,579 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 688 transitions, 14703 flow [2023-08-29 02:21:39,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:39,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:39,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:39,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:21:39,580 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:39,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1577204, now seen corresponding path program 8 times [2023-08-29 02:21:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:39,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829595880] [2023-08-29 02:21:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:39,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:40,225 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 02:21:40,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:40,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829595880] [2023-08-29 02:21:40,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829595880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:40,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:40,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:40,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903735354] [2023-08-29 02:21:40,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:40,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:41,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:41,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 688 transitions, 14703 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:41,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:41,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:41,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:44,675 INFO L130 PetriNetUnfolder]: 3402/8580 cut-off events. [2023-08-29 02:21:44,675 INFO L131 PetriNetUnfolder]: For 123026/123202 co-relation queries the response was YES. [2023-08-29 02:21:44,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50901 conditions, 8580 events. 3402/8580 cut-off events. For 123026/123202 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 78403 event pairs, 443 based on Foata normal form. 71/8542 useless extension candidates. Maximal degree in co-relation 50819. Up to 2450 conditions per place. [2023-08-29 02:21:44,790 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 548 selfloop transitions, 433 changer transitions 3/1020 dead transitions. [2023-08-29 02:21:44,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 1020 transitions, 20508 flow [2023-08-29 02:21:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:21:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:21:44,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3284 transitions. [2023-08-29 02:21:44,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42832920307812705 [2023-08-29 02:21:44,796 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3284 transitions. [2023-08-29 02:21:44,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3284 transitions. [2023-08-29 02:21:44,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:44,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3284 transitions. [2023-08-29 02:21:44,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 193.1764705882353) internal successors, (3284), 17 states have internal predecessors, (3284), 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 02:21:44,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 451.0) internal successors, (8118), 18 states have internal predecessors, (8118), 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 02:21:44,809 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 451.0) internal successors, (8118), 18 states have internal predecessors, (8118), 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 02:21:44,809 INFO L175 Difference]: Start difference. First operand has 242 places, 688 transitions, 14703 flow. Second operand 17 states and 3284 transitions. [2023-08-29 02:21:44,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 1020 transitions, 20508 flow [2023-08-29 02:21:46,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1020 transitions, 20408 flow, removed 50 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:46,068 INFO L231 Difference]: Finished difference. Result has 269 places, 768 transitions, 18360 flow [2023-08-29 02:21:46,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=14623, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18360, PETRI_PLACES=269, PETRI_TRANSITIONS=768} [2023-08-29 02:21:46,070 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 188 predicate places. [2023-08-29 02:21:46,070 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 768 transitions, 18360 flow [2023-08-29 02:21:46,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:46,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:46,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:46,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:21:46,071 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:46,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -607029848, now seen corresponding path program 9 times [2023-08-29 02:21:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:46,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996385280] [2023-08-29 02:21:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:46,558 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 02:21:46,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:46,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996385280] [2023-08-29 02:21:46,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996385280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:46,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:46,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:46,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566528890] [2023-08-29 02:21:46,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:46,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:46,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:46,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:46,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:47,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:47,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 768 transitions, 18360 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:47,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:47,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:47,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:51,232 INFO L130 PetriNetUnfolder]: 3797/9575 cut-off events. [2023-08-29 02:21:51,233 INFO L131 PetriNetUnfolder]: For 173250/173506 co-relation queries the response was YES. [2023-08-29 02:21:51,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60532 conditions, 9575 events. 3797/9575 cut-off events. For 173250/173506 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 89753 event pairs, 580 based on Foata normal form. 135/9582 useless extension candidates. Maximal degree in co-relation 60438. Up to 3261 conditions per place. [2023-08-29 02:21:51,315 INFO L137 encePairwiseOnDemand]: 420/451 looper letters, 502 selfloop transitions, 524 changer transitions 2/1064 dead transitions. [2023-08-29 02:21:51,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1064 transitions, 24417 flow [2023-08-29 02:21:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2717 transitions. [2023-08-29 02:21:51,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43031358885017423 [2023-08-29 02:21:51,321 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2717 transitions. [2023-08-29 02:21:51,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2717 transitions. [2023-08-29 02:21:51,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:51,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2717 transitions. [2023-08-29 02:21:51,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.07142857142858) internal successors, (2717), 14 states have internal predecessors, (2717), 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 02:21:51,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:21:51,331 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:21:51,331 INFO L175 Difference]: Start difference. First operand has 269 places, 768 transitions, 18360 flow. Second operand 14 states and 2717 transitions. [2023-08-29 02:21:51,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1064 transitions, 24417 flow [2023-08-29 02:21:52,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1064 transitions, 24302 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-08-29 02:21:52,704 INFO L231 Difference]: Finished difference. Result has 291 places, 855 transitions, 22779 flow [2023-08-29 02:21:52,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=18269, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=768, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22779, PETRI_PLACES=291, PETRI_TRANSITIONS=855} [2023-08-29 02:21:52,706 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 210 predicate places. [2023-08-29 02:21:52,706 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 855 transitions, 22779 flow [2023-08-29 02:21:52,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:52,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:52,707 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:52,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:21:52,707 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:21:52,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:52,707 INFO L85 PathProgramCache]: Analyzing trace with hash 213787338, now seen corresponding path program 10 times [2023-08-29 02:21:52,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:52,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711334798] [2023-08-29 02:21:52,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:52,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:53,142 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 02:21:53,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:53,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711334798] [2023-08-29 02:21:53,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711334798] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:53,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:53,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:53,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594187113] [2023-08-29 02:21:53,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:53,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:21:53,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:21:53,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:21:53,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:21:53,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 855 transitions, 22779 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:21:53,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:53,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:21:53,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:59,281 INFO L130 PetriNetUnfolder]: 4120/10414 cut-off events. [2023-08-29 02:21:59,281 INFO L131 PetriNetUnfolder]: For 236332/236612 co-relation queries the response was YES. [2023-08-29 02:21:59,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70110 conditions, 10414 events. 4120/10414 cut-off events. For 236332/236612 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 99803 event pairs, 466 based on Foata normal form. 153/10426 useless extension candidates. Maximal degree in co-relation 70005. Up to 3437 conditions per place. [2023-08-29 02:21:59,380 INFO L137 encePairwiseOnDemand]: 421/451 looper letters, 523 selfloop transitions, 550 changer transitions 2/1111 dead transitions. [2023-08-29 02:21:59,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1111 transitions, 28657 flow [2023-08-29 02:21:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:21:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:21:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2682 transitions. [2023-08-29 02:21:59,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4247703515996199 [2023-08-29 02:21:59,384 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2682 transitions. [2023-08-29 02:21:59,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2682 transitions. [2023-08-29 02:21:59,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:59,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2682 transitions. [2023-08-29 02:21:59,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 191.57142857142858) internal successors, (2682), 14 states have internal predecessors, (2682), 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 02:21:59,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:21:59,394 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:21:59,394 INFO L175 Difference]: Start difference. First operand has 291 places, 855 transitions, 22779 flow. Second operand 14 states and 2682 transitions. [2023-08-29 02:21:59,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1111 transitions, 28657 flow [2023-08-29 02:22:01,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 1111 transitions, 28523 flow, removed 67 selfloop flow, removed 0 redundant places. [2023-08-29 02:22:01,590 INFO L231 Difference]: Finished difference. Result has 316 places, 917 transitions, 26901 flow [2023-08-29 02:22:01,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=22653, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=855, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26901, PETRI_PLACES=316, PETRI_TRANSITIONS=917} [2023-08-29 02:22:01,591 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 235 predicate places. [2023-08-29 02:22:01,591 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 917 transitions, 26901 flow [2023-08-29 02:22:01,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:22:01,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:01,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:01,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:22:01,592 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:01,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash 86800194, now seen corresponding path program 11 times [2023-08-29 02:22:01,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:01,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133717568] [2023-08-29 02:22:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:01,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:02,161 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 02:22:02,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:02,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133717568] [2023-08-29 02:22:02,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133717568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:02,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:02,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:22:02,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815736519] [2023-08-29 02:22:02,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:02,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:22:02,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:02,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:22:02,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:22:02,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 451 [2023-08-29 02:22:02,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 917 transitions, 26901 flow. Second operand has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:22:02,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:02,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 451 [2023-08-29 02:22:02,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:07,780 INFO L130 PetriNetUnfolder]: 4212/10668 cut-off events. [2023-08-29 02:22:07,781 INFO L131 PetriNetUnfolder]: For 293207/293499 co-relation queries the response was YES. [2023-08-29 02:22:07,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75576 conditions, 10668 events. 4212/10668 cut-off events. For 293207/293499 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 102893 event pairs, 705 based on Foata normal form. 125/10646 useless extension candidates. Maximal degree in co-relation 75459. Up to 4609 conditions per place. [2023-08-29 02:22:07,895 INFO L137 encePairwiseOnDemand]: 421/451 looper letters, 537 selfloop transitions, 506 changer transitions 0/1079 dead transitions. [2023-08-29 02:22:07,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1079 transitions, 31050 flow [2023-08-29 02:22:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 02:22:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 02:22:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2136 transitions. [2023-08-29 02:22:07,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4305583551703286 [2023-08-29 02:22:07,898 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2136 transitions. [2023-08-29 02:22:07,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2136 transitions. [2023-08-29 02:22:07,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:07,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2136 transitions. [2023-08-29 02:22:07,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 194.1818181818182) internal successors, (2136), 11 states have internal predecessors, (2136), 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 02:22:07,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:22:07,905 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 451.0) internal successors, (5412), 12 states have internal predecessors, (5412), 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 02:22:07,905 INFO L175 Difference]: Start difference. First operand has 316 places, 917 transitions, 26901 flow. Second operand 11 states and 2136 transitions. [2023-08-29 02:22:07,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1079 transitions, 31050 flow [2023-08-29 02:22:10,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1079 transitions, 30872 flow, removed 89 selfloop flow, removed 0 redundant places. [2023-08-29 02:22:10,462 INFO L231 Difference]: Finished difference. Result has 330 places, 942 transitions, 28914 flow [2023-08-29 02:22:10,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=26743, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=482, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28914, PETRI_PLACES=330, PETRI_TRANSITIONS=942} [2023-08-29 02:22:10,463 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 249 predicate places. [2023-08-29 02:22:10,463 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 942 transitions, 28914 flow [2023-08-29 02:22:10,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.2) internal successors, (1742), 10 states have internal predecessors, (1742), 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 02:22:10,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:10,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:10,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:22:10,464 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:10,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash 402364368, now seen corresponding path program 12 times [2023-08-29 02:22:10,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:10,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993058988] [2023-08-29 02:22:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:10,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:10,974 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 02:22:10,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:10,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993058988] [2023-08-29 02:22:10,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993058988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:10,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:22:10,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47622479] [2023-08-29 02:22:10,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:10,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:22:10,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:10,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:22:10,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:22:11,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:22:11,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 942 transitions, 28914 flow. Second operand has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:22:11,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:11,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:22:11,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:17,229 INFO L130 PetriNetUnfolder]: 4536/11484 cut-off events. [2023-08-29 02:22:17,229 INFO L131 PetriNetUnfolder]: For 343761/344084 co-relation queries the response was YES. [2023-08-29 02:22:17,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84009 conditions, 11484 events. 4536/11484 cut-off events. For 343761/344084 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 112535 event pairs, 597 based on Foata normal form. 162/11490 useless extension candidates. Maximal degree in co-relation 83887. Up to 3492 conditions per place. [2023-08-29 02:22:17,369 INFO L137 encePairwiseOnDemand]: 420/451 looper letters, 591 selfloop transitions, 591 changer transitions 2/1220 dead transitions. [2023-08-29 02:22:17,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 1220 transitions, 35598 flow [2023-08-29 02:22:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:22:17,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:22:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2702 transitions. [2023-08-29 02:22:17,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4279379157427938 [2023-08-29 02:22:17,372 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2702 transitions. [2023-08-29 02:22:17,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2702 transitions. [2023-08-29 02:22:17,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:17,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2702 transitions. [2023-08-29 02:22:17,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.0) internal successors, (2702), 14 states have internal predecessors, (2702), 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 02:22:17,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:22:17,381 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:22:17,381 INFO L175 Difference]: Start difference. First operand has 330 places, 942 transitions, 28914 flow. Second operand 14 states and 2702 transitions. [2023-08-29 02:22:17,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 1220 transitions, 35598 flow [2023-08-29 02:22:20,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1220 transitions, 35131 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-29 02:22:20,775 INFO L231 Difference]: Finished difference. Result has 350 places, 1000 transitions, 33078 flow [2023-08-29 02:22:20,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=28514, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=533, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33078, PETRI_PLACES=350, PETRI_TRANSITIONS=1000} [2023-08-29 02:22:20,776 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 269 predicate places. [2023-08-29 02:22:20,776 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 1000 transitions, 33078 flow [2023-08-29 02:22:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.2) internal successors, (1732), 10 states have internal predecessors, (1732), 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 02:22:20,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:20,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:20,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:22:20,778 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:20,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:20,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1079981426, now seen corresponding path program 1 times [2023-08-29 02:22:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:20,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039567213] [2023-08-29 02:22:20,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:20,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:21,071 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 02:22:21,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:21,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039567213] [2023-08-29 02:22:21,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039567213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:21,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:21,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:22:21,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474909181] [2023-08-29 02:22:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:21,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:22:21,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:22:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:22:21,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 02:22:21,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 1000 transitions, 33078 flow. Second operand has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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 02:22:21,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:21,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 02:22:21,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:28,385 INFO L130 PetriNetUnfolder]: 7083/16456 cut-off events. [2023-08-29 02:22:28,385 INFO L131 PetriNetUnfolder]: For 512887/513221 co-relation queries the response was YES. [2023-08-29 02:22:28,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114526 conditions, 16456 events. 7083/16456 cut-off events. For 512887/513221 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 156765 event pairs, 3162 based on Foata normal form. 2/15938 useless extension candidates. Maximal degree in co-relation 114394. Up to 13550 conditions per place. [2023-08-29 02:22:28,603 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 890 selfloop transitions, 150 changer transitions 0/1215 dead transitions. [2023-08-29 02:22:28,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1215 transitions, 41282 flow [2023-08-29 02:22:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:22:28,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:22:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1181 transitions. [2023-08-29 02:22:28,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4364375461936438 [2023-08-29 02:22:28,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1181 transitions. [2023-08-29 02:22:28,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1181 transitions. [2023-08-29 02:22:28,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:28,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1181 transitions. [2023-08-29 02:22:28,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 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 02:22:28,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:22:28,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:22:28,609 INFO L175 Difference]: Start difference. First operand has 350 places, 1000 transitions, 33078 flow. Second operand 6 states and 1181 transitions. [2023-08-29 02:22:28,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 1215 transitions, 41282 flow [2023-08-29 02:22:33,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1215 transitions, 41083 flow, removed 89 selfloop flow, removed 1 redundant places. [2023-08-29 02:22:33,688 INFO L231 Difference]: Finished difference. Result has 358 places, 1103 transitions, 35847 flow [2023-08-29 02:22:33,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=32951, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=904, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=35847, PETRI_PLACES=358, PETRI_TRANSITIONS=1103} [2023-08-29 02:22:33,689 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 277 predicate places. [2023-08-29 02:22:33,689 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 1103 transitions, 35847 flow [2023-08-29 02:22:33,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 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 02:22:33,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:33,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:33,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:22:33,690 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:33,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:33,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1857836806, now seen corresponding path program 1 times [2023-08-29 02:22:33,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:33,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536994116] [2023-08-29 02:22:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:33,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:33,953 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 02:22:33,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:33,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536994116] [2023-08-29 02:22:33,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536994116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:33,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:33,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:22:33,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165209474] [2023-08-29 02:22:33,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:33,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:22:33,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:22:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:22:34,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 451 [2023-08-29 02:22:34,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 1103 transitions, 35847 flow. Second operand has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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 02:22:34,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:34,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 451 [2023-08-29 02:22:34,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:44,167 INFO L130 PetriNetUnfolder]: 9012/21521 cut-off events. [2023-08-29 02:22:44,167 INFO L131 PetriNetUnfolder]: For 679402/680372 co-relation queries the response was YES. [2023-08-29 02:22:44,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154414 conditions, 21521 events. 9012/21521 cut-off events. For 679402/680372 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 223482 event pairs, 950 based on Foata normal form. 152/21120 useless extension candidates. Maximal degree in co-relation 154277. Up to 11938 conditions per place. [2023-08-29 02:22:44,516 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 903 selfloop transitions, 661 changer transitions 4/1872 dead transitions. [2023-08-29 02:22:44,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1872 transitions, 67051 flow [2023-08-29 02:22:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:22:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:22:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1270 transitions. [2023-08-29 02:22:44,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4693274205469327 [2023-08-29 02:22:44,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1270 transitions. [2023-08-29 02:22:44,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1270 transitions. [2023-08-29 02:22:44,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:44,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1270 transitions. [2023-08-29 02:22:44,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.66666666666666) internal successors, (1270), 6 states have internal predecessors, (1270), 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 02:22:44,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:22:44,521 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 451.0) internal successors, (3157), 7 states have internal predecessors, (3157), 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 02:22:44,521 INFO L175 Difference]: Start difference. First operand has 358 places, 1103 transitions, 35847 flow. Second operand 6 states and 1270 transitions. [2023-08-29 02:22:44,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1872 transitions, 67051 flow [2023-08-29 02:22:52,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1872 transitions, 66689 flow, removed 181 selfloop flow, removed 0 redundant places. [2023-08-29 02:22:52,473 INFO L231 Difference]: Finished difference. Result has 368 places, 1609 transitions, 59209 flow [2023-08-29 02:22:52,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=35487, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=832, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=59209, PETRI_PLACES=368, PETRI_TRANSITIONS=1609} [2023-08-29 02:22:52,475 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 287 predicate places. [2023-08-29 02:22:52,475 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 1609 transitions, 59209 flow [2023-08-29 02:22:52,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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 02:22:52,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:52,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:52,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:22:52,476 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:22:52,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:52,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1876719074, now seen corresponding path program 1 times [2023-08-29 02:22:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304810742] [2023-08-29 02:22:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:52,908 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 02:22:52,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:52,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304810742] [2023-08-29 02:22:52,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304810742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:52,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:52,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:22:52,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150454781] [2023-08-29 02:22:52,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:52,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:22:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:22:52,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:22:53,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:22:53,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 1609 transitions, 59209 flow. Second operand has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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 02:22:53,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:53,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:22:53,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:23:05,371 INFO L130 PetriNetUnfolder]: 7993/20237 cut-off events. [2023-08-29 02:23:05,371 INFO L131 PetriNetUnfolder]: For 752856/753751 co-relation queries the response was YES. [2023-08-29 02:23:05,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165840 conditions, 20237 events. 7993/20237 cut-off events. For 752856/753751 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 214964 event pairs, 1558 based on Foata normal form. 243/20331 useless extension candidates. Maximal degree in co-relation 165698. Up to 11390 conditions per place. [2023-08-29 02:23:05,691 INFO L137 encePairwiseOnDemand]: 426/451 looper letters, 1375 selfloop transitions, 486 changer transitions 7/1923 dead transitions. [2023-08-29 02:23:05,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1923 transitions, 66884 flow [2023-08-29 02:23:05,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:23:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:23:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3398 transitions. [2023-08-29 02:23:05,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4185760039418576 [2023-08-29 02:23:05,695 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3398 transitions. [2023-08-29 02:23:05,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3398 transitions. [2023-08-29 02:23:05,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:23:05,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3398 transitions. [2023-08-29 02:23:05,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 188.77777777777777) internal successors, (3398), 18 states have internal predecessors, (3398), 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 02:23:05,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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 02:23:05,705 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 451.0) internal successors, (8569), 19 states have internal predecessors, (8569), 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 02:23:05,705 INFO L175 Difference]: Start difference. First operand has 368 places, 1609 transitions, 59209 flow. Second operand 18 states and 3398 transitions. [2023-08-29 02:23:05,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 1923 transitions, 66884 flow [2023-08-29 02:23:15,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1923 transitions, 66200 flow, removed 342 selfloop flow, removed 0 redundant places. [2023-08-29 02:23:15,621 INFO L231 Difference]: Finished difference. Result has 390 places, 1646 transitions, 61351 flow [2023-08-29 02:23:15,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=58525, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=61351, PETRI_PLACES=390, PETRI_TRANSITIONS=1646} [2023-08-29 02:23:15,622 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 309 predicate places. [2023-08-29 02:23:15,622 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 1646 transitions, 61351 flow [2023-08-29 02:23:15,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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 02:23:15,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:15,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:23:15,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:23:15,623 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:23:15,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:15,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1379097491, now seen corresponding path program 1 times [2023-08-29 02:23:15,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:15,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714942920] [2023-08-29 02:23:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:15,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:23:16,320 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 02:23:16,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:23:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714942920] [2023-08-29 02:23:16,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714942920] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:23:16,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:23:16,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:23:16,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346903380] [2023-08-29 02:23:16,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:23:16,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:23:16,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:23:16,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:23:16,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:23:17,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 451 [2023-08-29 02:23:17,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 1646 transitions, 61351 flow. Second operand has 10 states, 10 states have (on average 175.5) internal successors, (1755), 10 states have internal predecessors, (1755), 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 02:23:17,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:23:17,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 451 [2023-08-29 02:23:17,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:23:32,066 INFO L130 PetriNetUnfolder]: 10426/23677 cut-off events. [2023-08-29 02:23:32,066 INFO L131 PetriNetUnfolder]: For 824272/825023 co-relation queries the response was YES. [2023-08-29 02:23:32,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186118 conditions, 23677 events. 10426/23677 cut-off events. For 824272/825023 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 236784 event pairs, 2812 based on Foata normal form. 12/22955 useless extension candidates. Maximal degree in co-relation 185970. Up to 16626 conditions per place. [2023-08-29 02:23:32,707 INFO L137 encePairwiseOnDemand]: 437/451 looper letters, 1177 selfloop transitions, 456 changer transitions 2/1936 dead transitions. [2023-08-29 02:23:32,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1936 transitions, 71724 flow [2023-08-29 02:23:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:23:32,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:23:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2817 transitions. [2023-08-29 02:23:32,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4164079822616408 [2023-08-29 02:23:32,711 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2817 transitions. [2023-08-29 02:23:32,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2817 transitions. [2023-08-29 02:23:32,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:23:32,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2817 transitions. [2023-08-29 02:23:32,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 187.8) internal successors, (2817), 15 states have internal predecessors, (2817), 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 02:23:32,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:23:32,718 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:23:32,718 INFO L175 Difference]: Start difference. First operand has 390 places, 1646 transitions, 61351 flow. Second operand 15 states and 2817 transitions. [2023-08-29 02:23:32,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1936 transitions, 71724 flow [2023-08-29 02:23:43,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1936 transitions, 71596 flow, removed 26 selfloop flow, removed 8 redundant places. [2023-08-29 02:23:43,734 INFO L231 Difference]: Finished difference. Result has 400 places, 1730 transitions, 64853 flow [2023-08-29 02:23:43,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=61263, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=378, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=64853, PETRI_PLACES=400, PETRI_TRANSITIONS=1730} [2023-08-29 02:23:43,735 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 319 predicate places. [2023-08-29 02:23:43,735 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 1730 transitions, 64853 flow [2023-08-29 02:23:43,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 175.5) internal successors, (1755), 10 states have internal predecessors, (1755), 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 02:23:43,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:43,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:23:43,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:23:43,736 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:23:43,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:43,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1489492606, now seen corresponding path program 1 times [2023-08-29 02:23:43,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:43,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596977997] [2023-08-29 02:23:43,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:43,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:23:45,060 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 02:23:45,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:23:45,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596977997] [2023-08-29 02:23:45,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596977997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:23:45,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:23:45,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:23:45,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352671977] [2023-08-29 02:23:45,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:23:45,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:23:45,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:23:45,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:23:45,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:23:46,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:23:46,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 1730 transitions, 64853 flow. Second operand has 11 states, 11 states have (on average 173.63636363636363) internal successors, (1910), 11 states have internal predecessors, (1910), 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 02:23:46,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:23:46,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:23:46,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:24:01,165 INFO L130 PetriNetUnfolder]: 9757/22316 cut-off events. [2023-08-29 02:24:01,165 INFO L131 PetriNetUnfolder]: For 834171/835166 co-relation queries the response was YES. [2023-08-29 02:24:01,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184454 conditions, 22316 events. 9757/22316 cut-off events. For 834171/835166 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 222221 event pairs, 2455 based on Foata normal form. 10/22158 useless extension candidates. Maximal degree in co-relation 184302. Up to 13204 conditions per place. [2023-08-29 02:24:01,726 INFO L137 encePairwiseOnDemand]: 441/451 looper letters, 929 selfloop transitions, 738 changer transitions 2/2042 dead transitions. [2023-08-29 02:24:01,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 2042 transitions, 75915 flow [2023-08-29 02:24:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:24:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:24:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2775 transitions. [2023-08-29 02:24:01,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41019955654101997 [2023-08-29 02:24:01,731 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2775 transitions. [2023-08-29 02:24:01,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2775 transitions. [2023-08-29 02:24:01,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:24:01,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2775 transitions. [2023-08-29 02:24:01,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.0) internal successors, (2775), 15 states have internal predecessors, (2775), 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 02:24:01,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:24:01,740 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:24:01,740 INFO L175 Difference]: Start difference. First operand has 400 places, 1730 transitions, 64853 flow. Second operand 15 states and 2775 transitions. [2023-08-29 02:24:01,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 2042 transitions, 75915 flow [2023-08-29 02:24:11,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 2042 transitions, 75830 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-08-29 02:24:11,985 INFO L231 Difference]: Finished difference. Result has 410 places, 1823 transitions, 69664 flow [2023-08-29 02:24:11,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=64762, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=69664, PETRI_PLACES=410, PETRI_TRANSITIONS=1823} [2023-08-29 02:24:11,986 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 329 predicate places. [2023-08-29 02:24:11,987 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 1823 transitions, 69664 flow [2023-08-29 02:24:11,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.63636363636363) internal successors, (1910), 11 states have internal predecessors, (1910), 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 02:24:11,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:24:11,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:24:11,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:24:11,987 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:24:11,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:24:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1273843572, now seen corresponding path program 1 times [2023-08-29 02:24:11,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:24:11,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149504359] [2023-08-29 02:24:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:24:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:24:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:24:12,530 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 02:24:12,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:24:12,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149504359] [2023-08-29 02:24:12,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149504359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:24:12,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:24:12,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:24:12,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103262372] [2023-08-29 02:24:12,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:24:12,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:24:12,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:24:12,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:24:12,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:24:13,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 02:24:13,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 1823 transitions, 69664 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:24:13,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:24:13,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 02:24:13,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:24:28,645 INFO L130 PetriNetUnfolder]: 9201/21739 cut-off events. [2023-08-29 02:24:28,645 INFO L131 PetriNetUnfolder]: For 859473/860383 co-relation queries the response was YES. [2023-08-29 02:24:29,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183485 conditions, 21739 events. 9201/21739 cut-off events. For 859473/860383 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 222730 event pairs, 1034 based on Foata normal form. 657/22345 useless extension candidates. Maximal degree in co-relation 183332. Up to 6395 conditions per place. [2023-08-29 02:24:29,159 INFO L137 encePairwiseOnDemand]: 436/451 looper letters, 1426 selfloop transitions, 423 changer transitions 7/2188 dead transitions. [2023-08-29 02:24:29,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 2188 transitions, 81273 flow [2023-08-29 02:24:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:24:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:24:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2913 transitions. [2023-08-29 02:24:29,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43059866962305987 [2023-08-29 02:24:29,163 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2913 transitions. [2023-08-29 02:24:29,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2913 transitions. [2023-08-29 02:24:29,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:24:29,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2913 transitions. [2023-08-29 02:24:29,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 194.2) internal successors, (2913), 15 states have internal predecessors, (2913), 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 02:24:29,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:24:29,170 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:24:29,170 INFO L175 Difference]: Start difference. First operand has 410 places, 1823 transitions, 69664 flow. Second operand 15 states and 2913 transitions. [2023-08-29 02:24:29,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 2188 transitions, 81273 flow [2023-08-29 02:24:39,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 2188 transitions, 80157 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-29 02:24:39,877 INFO L231 Difference]: Finished difference. Result has 420 places, 1878 transitions, 70877 flow [2023-08-29 02:24:39,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=68630, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1823, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=70877, PETRI_PLACES=420, PETRI_TRANSITIONS=1878} [2023-08-29 02:24:39,879 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 339 predicate places. [2023-08-29 02:24:39,879 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 1878 transitions, 70877 flow [2023-08-29 02:24:39,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:24:39,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:24:39,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:24:39,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:24:39,880 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:24:39,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:24:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash -43296910, now seen corresponding path program 2 times [2023-08-29 02:24:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:24:39,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967086558] [2023-08-29 02:24:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:24:39,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:24:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:24:40,302 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 02:24:40,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:24:40,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967086558] [2023-08-29 02:24:40,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967086558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:24:40,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:24:40,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:24:40,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104595651] [2023-08-29 02:24:40,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:24:40,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:24:40,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:24:40,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:24:40,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:24:40,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 451 [2023-08-29 02:24:40,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1878 transitions, 70877 flow. Second operand has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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 02:24:40,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:24:40,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 451 [2023-08-29 02:24:40,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:24:56,251 INFO L130 PetriNetUnfolder]: 8786/21835 cut-off events. [2023-08-29 02:24:56,251 INFO L131 PetriNetUnfolder]: For 957104/958110 co-relation queries the response was YES. [2023-08-29 02:24:56,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198000 conditions, 21835 events. 8786/21835 cut-off events. For 957104/958110 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 231874 event pairs, 1077 based on Foata normal form. 524/22200 useless extension candidates. Maximal degree in co-relation 197842. Up to 6080 conditions per place. [2023-08-29 02:24:56,642 INFO L137 encePairwiseOnDemand]: 419/451 looper letters, 1043 selfloop transitions, 1144 changer transitions 5/2280 dead transitions. [2023-08-29 02:24:56,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 2280 transitions, 82182 flow [2023-08-29 02:24:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:24:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:24:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3094 transitions. [2023-08-29 02:24:56,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42876940133037694 [2023-08-29 02:24:56,645 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3094 transitions. [2023-08-29 02:24:56,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3094 transitions. [2023-08-29 02:24:56,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:24:56,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3094 transitions. [2023-08-29 02:24:56,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 193.375) internal successors, (3094), 16 states have internal predecessors, (3094), 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 02:24:56,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 451.0) internal successors, (7667), 17 states have internal predecessors, (7667), 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 02:24:56,653 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 451.0) internal successors, (7667), 17 states have internal predecessors, (7667), 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 02:24:56,653 INFO L175 Difference]: Start difference. First operand has 420 places, 1878 transitions, 70877 flow. Second operand 16 states and 3094 transitions. [2023-08-29 02:24:56,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 2280 transitions, 82182 flow [2023-08-29 02:25:09,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 2280 transitions, 82172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:25:09,093 INFO L231 Difference]: Finished difference. Result has 444 places, 1958 transitions, 78956 flow [2023-08-29 02:25:09,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=70867, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=78956, PETRI_PLACES=444, PETRI_TRANSITIONS=1958} [2023-08-29 02:25:09,095 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 363 predicate places. [2023-08-29 02:25:09,095 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 1958 transitions, 78956 flow [2023-08-29 02:25:09,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 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 02:25:09,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:25:09,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:25:09,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:25:09,096 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:25:09,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:25:09,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1947797070, now seen corresponding path program 2 times [2023-08-29 02:25:09,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:25:09,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726413122] [2023-08-29 02:25:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:25:09,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:25:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:25:09,557 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 02:25:09,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:25:09,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726413122] [2023-08-29 02:25:09,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726413122] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:25:09,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:25:09,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:25:09,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823053585] [2023-08-29 02:25:09,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:25:09,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:25:09,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:25:09,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:25:09,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:25:10,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 02:25:10,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1958 transitions, 78956 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:25:10,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:25:10,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 02:25:10,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:25:30,524 INFO L130 PetriNetUnfolder]: 10729/25516 cut-off events. [2023-08-29 02:25:30,524 INFO L131 PetriNetUnfolder]: For 1143276/1144195 co-relation queries the response was YES. [2023-08-29 02:25:31,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231608 conditions, 25516 events. 10729/25516 cut-off events. For 1143276/1144195 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 269946 event pairs, 794 based on Foata normal form. 315/25713 useless extension candidates. Maximal degree in co-relation 231439. Up to 10224 conditions per place. [2023-08-29 02:25:31,188 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 1130 selfloop transitions, 1419 changer transitions 5/2908 dead transitions. [2023-08-29 02:25:31,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 2908 transitions, 114197 flow [2023-08-29 02:25:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:25:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:25:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2996 transitions. [2023-08-29 02:25:31,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4428677014042868 [2023-08-29 02:25:31,190 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2996 transitions. [2023-08-29 02:25:31,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2996 transitions. [2023-08-29 02:25:31,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:25:31,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2996 transitions. [2023-08-29 02:25:31,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 199.73333333333332) internal successors, (2996), 15 states have internal predecessors, (2996), 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 02:25:31,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:25:31,197 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:25:31,197 INFO L175 Difference]: Start difference. First operand has 444 places, 1958 transitions, 78956 flow. Second operand 15 states and 2996 transitions. [2023-08-29 02:25:31,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 2908 transitions, 114197 flow [2023-08-29 02:25:47,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 2908 transitions, 114088 flow, removed 45 selfloop flow, removed 4 redundant places. [2023-08-29 02:25:47,407 INFO L231 Difference]: Finished difference. Result has 461 places, 2502 transitions, 105604 flow [2023-08-29 02:25:47,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=78847, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=892, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=985, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=105604, PETRI_PLACES=461, PETRI_TRANSITIONS=2502} [2023-08-29 02:25:47,408 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 380 predicate places. [2023-08-29 02:25:47,409 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 2502 transitions, 105604 flow [2023-08-29 02:25:47,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:25:47,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:25:47,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:25:47,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:25:47,409 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:25:47,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:25:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1663753180, now seen corresponding path program 3 times [2023-08-29 02:25:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:25:47,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348626032] [2023-08-29 02:25:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:25:47,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:25:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:25:47,921 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 02:25:47,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:25:47,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348626032] [2023-08-29 02:25:47,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348626032] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:25:47,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:25:47,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:25:47,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529100355] [2023-08-29 02:25:47,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:25:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:25:47,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:25:47,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:25:47,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:25:48,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 02:25:48,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 2502 transitions, 105604 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:25:48,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:25:48,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 02:25:48,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:26:13,476 INFO L130 PetriNetUnfolder]: 11218/26832 cut-off events. [2023-08-29 02:26:13,476 INFO L131 PetriNetUnfolder]: For 1289067/1290004 co-relation queries the response was YES. [2023-08-29 02:26:14,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256515 conditions, 26832 events. 11218/26832 cut-off events. For 1289067/1290004 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 286663 event pairs, 840 based on Foata normal form. 278/27054 useless extension candidates. Maximal degree in co-relation 256339. Up to 12348 conditions per place. [2023-08-29 02:26:14,146 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 1018 selfloop transitions, 1597 changer transitions 7/2976 dead transitions. [2023-08-29 02:26:14,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 2976 transitions, 124083 flow [2023-08-29 02:26:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:26:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:26:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2798 transitions. [2023-08-29 02:26:14,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44314222363002853 [2023-08-29 02:26:14,149 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2798 transitions. [2023-08-29 02:26:14,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2798 transitions. [2023-08-29 02:26:14,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:26:14,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2798 transitions. [2023-08-29 02:26:14,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 199.85714285714286) internal successors, (2798), 14 states have internal predecessors, (2798), 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 02:26:14,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:26:14,167 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 451.0) internal successors, (6765), 15 states have internal predecessors, (6765), 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 02:26:14,167 INFO L175 Difference]: Start difference. First operand has 461 places, 2502 transitions, 105604 flow. Second operand 14 states and 2798 transitions. [2023-08-29 02:26:14,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 2976 transitions, 124083 flow [2023-08-29 02:26:36,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 2976 transitions, 123784 flow, removed 146 selfloop flow, removed 3 redundant places. [2023-08-29 02:26:36,776 INFO L231 Difference]: Finished difference. Result has 478 places, 2695 transitions, 119107 flow [2023-08-29 02:26:36,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=105307, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=119107, PETRI_PLACES=478, PETRI_TRANSITIONS=2695} [2023-08-29 02:26:36,779 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 397 predicate places. [2023-08-29 02:26:36,779 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 2695 transitions, 119107 flow [2023-08-29 02:26:36,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:26:36,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:26:36,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:26:36,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 02:26:36,779 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:26:36,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:26:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1923194350, now seen corresponding path program 4 times [2023-08-29 02:26:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:26:36,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261537347] [2023-08-29 02:26:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:26:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:26:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:26:37,309 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 02:26:37,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:26:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261537347] [2023-08-29 02:26:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261537347] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:26:37,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:26:37,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:26:37,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733378767] [2023-08-29 02:26:37,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:26:37,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:26:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:26:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:26:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:26:38,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 451 [2023-08-29 02:26:38,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 2695 transitions, 119107 flow. Second operand has 10 states, 10 states have (on average 181.4) internal successors, (1814), 10 states have internal predecessors, (1814), 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 02:26:38,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:26:38,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 451 [2023-08-29 02:26:38,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:27:09,656 INFO L130 PetriNetUnfolder]: 11930/28589 cut-off events. [2023-08-29 02:27:09,656 INFO L131 PetriNetUnfolder]: For 1491084/1492173 co-relation queries the response was YES. [2023-08-29 02:27:10,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291437 conditions, 28589 events. 11930/28589 cut-off events. For 1491084/1492173 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 309461 event pairs, 926 based on Foata normal form. 384/28868 useless extension candidates. Maximal degree in co-relation 291254. Up to 11973 conditions per place. [2023-08-29 02:27:10,346 INFO L137 encePairwiseOnDemand]: 425/451 looper letters, 1003 selfloop transitions, 1926 changer transitions 6/3289 dead transitions. [2023-08-29 02:27:10,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 3289 transitions, 143186 flow [2023-08-29 02:27:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:27:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:27:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3005 transitions. [2023-08-29 02:27:10,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4441980783444198 [2023-08-29 02:27:10,349 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3005 transitions. [2023-08-29 02:27:10,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3005 transitions. [2023-08-29 02:27:10,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:27:10,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3005 transitions. [2023-08-29 02:27:10,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 200.33333333333334) internal successors, (3005), 15 states have internal predecessors, (3005), 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 02:27:10,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:27:10,357 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:27:10,357 INFO L175 Difference]: Start difference. First operand has 478 places, 2695 transitions, 119107 flow. Second operand 15 states and 3005 transitions. [2023-08-29 02:27:10,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 3289 transitions, 143186 flow [2023-08-29 02:27:39,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 3289 transitions, 143097 flow, removed 37 selfloop flow, removed 4 redundant places. [2023-08-29 02:27:39,202 INFO L231 Difference]: Finished difference. Result has 495 places, 3000 transitions, 138745 flow [2023-08-29 02:27:39,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=119030, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1627, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=987, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=138745, PETRI_PLACES=495, PETRI_TRANSITIONS=3000} [2023-08-29 02:27:39,204 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 414 predicate places. [2023-08-29 02:27:39,205 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 3000 transitions, 138745 flow [2023-08-29 02:27:39,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 181.4) internal successors, (1814), 10 states have internal predecessors, (1814), 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 02:27:39,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:27:39,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:27:39,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 02:27:39,206 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 02:27:39,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:27:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1672278490, now seen corresponding path program 5 times [2023-08-29 02:27:39,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:27:39,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284559723] [2023-08-29 02:27:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:27:39,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:27:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:27:39,773 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 02:27:39,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:27:39,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284559723] [2023-08-29 02:27:39,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284559723] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:27:39,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:27:39,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 02:27:39,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296298666] [2023-08-29 02:27:39,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:27:39,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 02:27:39,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:27:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 02:27:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:27:40,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 451 [2023-08-29 02:27:40,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 3000 transitions, 138745 flow. Second operand has 11 states, 11 states have (on average 179.27272727272728) internal successors, (1972), 11 states have internal predecessors, (1972), 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 02:27:40,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:27:40,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 451 [2023-08-29 02:27:40,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:28:15,153 INFO L130 PetriNetUnfolder]: 12360/29880 cut-off events. [2023-08-29 02:28:15,153 INFO L131 PetriNetUnfolder]: For 1705300/1706392 co-relation queries the response was YES. [2023-08-29 02:28:15,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320644 conditions, 29880 events. 12360/29880 cut-off events. For 1705300/1706392 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 326938 event pairs, 953 based on Foata normal form. 372/30193 useless extension candidates. Maximal degree in co-relation 320454. Up to 12586 conditions per place. [2023-08-29 02:28:16,058 INFO L137 encePairwiseOnDemand]: 429/451 looper letters, 1177 selfloop transitions, 2010 changer transitions 7/3548 dead transitions. [2023-08-29 02:28:16,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 3548 transitions, 161816 flow [2023-08-29 02:28:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:28:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:28:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3000 transitions. [2023-08-29 02:28:16,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4434589800443459 [2023-08-29 02:28:16,061 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3000 transitions. [2023-08-29 02:28:16,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3000 transitions. [2023-08-29 02:28:16,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:28:16,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3000 transitions. [2023-08-29 02:28:16,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 200.0) internal successors, (3000), 15 states have internal predecessors, (3000), 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 02:28:16,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:28:16,067 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 451.0) internal successors, (7216), 16 states have internal predecessors, (7216), 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 02:28:16,067 INFO L175 Difference]: Start difference. First operand has 495 places, 3000 transitions, 138745 flow. Second operand 15 states and 3000 transitions. [2023-08-29 02:28:16,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 3548 transitions, 161816 flow Killed by 15