./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:06:49,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:06:49,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:06:49,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:06:49,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:06:49,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:06:49,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:06:49,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:06:49,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:06:49,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:06:49,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:06:49,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:06:49,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:06:49,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:06:49,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:06:49,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:06:49,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:06:49,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:06:49,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:06:49,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:06:49,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:06:49,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:06:49,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:06:49,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:06:49,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:06:49,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:06:49,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:06:49,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:06:49,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:06:49,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:06:49,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:06:49,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:06:49,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:06:49,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:06:49,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:06:49,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:06:49,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:06:49,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:06:49,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:06:49,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:06:49,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:06:49,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:06:49,486 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:06:49,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:06:49,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:06:49,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:06:49,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:06:49,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:06:49,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:06:49,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:06:49,489 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:06:49,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:06:49,490 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:06:49,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:06:49,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:06:49,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:06:49,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:06:49,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:06:49,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:06:49,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:06:49,492 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:06:49,492 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:06:49,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:06:49,492 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:06:49,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:06:49,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:06:49,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:06:49,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:06:49,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:06:49,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:06:49,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:06:49,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:06:49,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:06:49,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:06:49,495 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:06:49,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:06:49,495 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:06:49,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:06:49,495 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:06:49,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:06:49,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:06:49,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:06:49,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:06:49,830 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:06:49,830 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:06:49,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-31 20:06:50,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:06:51,236 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:06:51,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-08-31 20:06:51,258 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315044a4c/b8e2962efb054413a3dec4206bb1d143/FLAG0fbd7b6a7 [2023-08-31 20:06:51,279 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315044a4c/b8e2962efb054413a3dec4206bb1d143 [2023-08-31 20:06:51,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:06:51,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:06:51,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:06:51,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:06:51,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:06:51,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d07ca44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51, skipping insertion in model container [2023-08-31 20:06:51,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:06:51,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:06:51,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:06:51,760 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:06:51,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:06:51,867 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:06:51,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51 WrapperNode [2023-08-31 20:06:51,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:06:51,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:06:51,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:06:51,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:06:51,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,909 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-31 20:06:51,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:06:51,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:06:51,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:06:51,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:06:51,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:06:51,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:06:51,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:06:51,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:06:51,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (1/1) ... [2023-08-31 20:06:51,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:06:51,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:06:51,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 20:06:51,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 20:06:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:06:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:06:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:06:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:06:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:06:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:06:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:06:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:06:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:06:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:06:52,008 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:06:52,118 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:06:52,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:06:52,329 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:06:52,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:06:52,334 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:06:52,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:52 BoogieIcfgContainer [2023-08-31 20:06:52,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:06:52,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:06:52,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:06:52,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:06:52,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:06:51" (1/3) ... [2023-08-31 20:06:52,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4b1e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:06:52, skipping insertion in model container [2023-08-31 20:06:52,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:06:51" (2/3) ... [2023-08-31 20:06:52,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4b1e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:06:52, skipping insertion in model container [2023-08-31 20:06:52,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:52" (3/3) ... [2023-08-31 20:06:52,360 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-08-31 20:06:52,367 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:06:52,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:06:52,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-31 20:06:52,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:06:52,468 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:06:52,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 163 flow [2023-08-31 20:06:52,577 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-31 20:06:52,580 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:52,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-31 20:06:52,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 79 transitions, 163 flow [2023-08-31 20:06:52,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2023-08-31 20:06:52,591 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:06:52,603 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-31 20:06:52,607 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 159 flow [2023-08-31 20:06:52,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 159 flow [2023-08-31 20:06:52,639 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-08-31 20:06:52,639 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:52,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-31 20:06:52,641 INFO L119 LiptonReduction]: Number of co-enabled transitions 660 [2023-08-31 20:06:55,664 INFO L134 LiptonReduction]: Checked pairs total: 2759 [2023-08-31 20:06:55,664 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-08-31 20:06:55,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:06:55,679 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;@20ab8b12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:06:55,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-31 20:06:55,684 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-31 20:06:55,684 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:55,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:55,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:55,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:55,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:55,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1761623214, now seen corresponding path program 1 times [2023-08-31 20:06:55,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:55,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182864434] [2023-08-31 20:06:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:55,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182864434] [2023-08-31 20:06:56,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182864434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:56,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:56,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:56,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435324671] [2023-08-31 20:06:56,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:56,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:56,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:56,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 137 [2023-08-31 20:06:56,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:56,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:56,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 137 [2023-08-31 20:06:56,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:56,729 INFO L130 PetriNetUnfolder]: 89/209 cut-off events. [2023-08-31 20:06:56,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:06:56,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 209 events. 89/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 782 event pairs, 34 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 406. Up to 150 conditions per place. [2023-08-31 20:06:56,732 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 26 selfloop transitions, 21 changer transitions 8/56 dead transitions. [2023-08-31 20:06:56,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 56 transitions, 225 flow [2023-08-31 20:06:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-08-31 20:06:56,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5425790754257908 [2023-08-31 20:06:56,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-08-31 20:06:56,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-08-31 20:06:56,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:56,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-08-31 20:06:56,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:56,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:56,757 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:56,759 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 446 transitions. [2023-08-31 20:06:56,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 56 transitions, 225 flow [2023-08-31 20:06:56,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 56 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:56,763 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-08-31 20:06:56,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2023-08-31 20:06:56,767 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-08-31 20:06:56,767 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-08-31 20:06:56,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:56,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:56,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:56,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:06:56,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:56,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1579949932, now seen corresponding path program 1 times [2023-08-31 20:06:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:56,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587090203] [2023-08-31 20:06:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:56,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:56,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587090203] [2023-08-31 20:06:56,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587090203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:56,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:56,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:06:56,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970518104] [2023-08-31 20:06:56,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:56,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:06:56,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:56,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:06:56,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:06:57,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 137 [2023-08-31 20:06:57,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:57,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:57,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 137 [2023-08-31 20:06:57,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:57,130 INFO L130 PetriNetUnfolder]: 112/256 cut-off events. [2023-08-31 20:06:57,130 INFO L131 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2023-08-31 20:06:57,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 256 events. 112/256 cut-off events. For 65/68 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1013 event pairs, 33 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 721. Up to 200 conditions per place. [2023-08-31 20:06:57,133 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 42 selfloop transitions, 25 changer transitions 8/76 dead transitions. [2023-08-31 20:06:57,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 76 transitions, 438 flow [2023-08-31 20:06:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:06:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:06:57,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2023-08-31 20:06:57,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352798053527981 [2023-08-31 20:06:57,136 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 440 transitions. [2023-08-31 20:06:57,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 440 transitions. [2023-08-31 20:06:57,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:57,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 440 transitions. [2023-08-31 20:06:57,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:57,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:57,146 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:57,146 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 440 transitions. [2023-08-31 20:06:57,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 76 transitions, 438 flow [2023-08-31 20:06:57,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 76 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:57,154 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-08-31 20:06:57,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=41, PETRI_TRANSITIONS=60} [2023-08-31 20:06:57,155 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-08-31 20:06:57,155 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-08-31 20:06:57,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:57,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:57,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:57,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:06:57,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:57,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:57,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1462696189, now seen corresponding path program 1 times [2023-08-31 20:06:57,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:57,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258709147] [2023-08-31 20:06:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:57,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:57,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:57,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258709147] [2023-08-31 20:06:57,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258709147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:57,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:57,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:06:57,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224088995] [2023-08-31 20:06:57,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:57,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:06:57,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:57,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:06:57,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:06:58,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:06:58,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 60 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:58,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:58,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:06:58,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:58,375 INFO L130 PetriNetUnfolder]: 191/458 cut-off events. [2023-08-31 20:06:58,375 INFO L131 PetriNetUnfolder]: For 357/364 co-relation queries the response was YES. [2023-08-31 20:06:58,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 458 events. 191/458 cut-off events. For 357/364 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2405 event pairs, 21 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1653. Up to 223 conditions per place. [2023-08-31 20:06:58,380 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 112 selfloop transitions, 31 changer transitions 24/168 dead transitions. [2023-08-31 20:06:58,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 168 transitions, 1270 flow [2023-08-31 20:06:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:06:58,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:06:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 597 transitions. [2023-08-31 20:06:58,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43576642335766425 [2023-08-31 20:06:58,383 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 597 transitions. [2023-08-31 20:06:58,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 597 transitions. [2023-08-31 20:06:58,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:58,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 597 transitions. [2023-08-31 20:06:58,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.7) internal successors, (597), 10 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:58,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:58,388 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:58,388 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 10 states and 597 transitions. [2023-08-31 20:06:58,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 168 transitions, 1270 flow [2023-08-31 20:06:58,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 168 transitions, 1204 flow, removed 33 selfloop flow, removed 0 redundant places. [2023-08-31 20:06:58,397 INFO L231 Difference]: Finished difference. Result has 57 places, 88 transitions, 642 flow [2023-08-31 20:06:58,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=57, PETRI_TRANSITIONS=88} [2023-08-31 20:06:58,398 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 33 predicate places. [2023-08-31 20:06:58,398 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 88 transitions, 642 flow [2023-08-31 20:06:58,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:58,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:58,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:06:58,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:06:58,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:06:58,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash 260291229, now seen corresponding path program 2 times [2023-08-31 20:06:58,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:58,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408971243] [2023-08-31 20:06:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:58,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:06:59,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:59,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408971243] [2023-08-31 20:06:59,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408971243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:06:59,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:06:59,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:06:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298819647] [2023-08-31 20:06:59,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:06:59,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:06:59,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:59,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:06:59,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:06:59,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:06:59,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 88 transitions, 642 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:06:59,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:59,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:06:59,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:00,266 INFO L130 PetriNetUnfolder]: 197/456 cut-off events. [2023-08-31 20:07:00,266 INFO L131 PetriNetUnfolder]: For 749/758 co-relation queries the response was YES. [2023-08-31 20:07:00,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 456 events. 197/456 cut-off events. For 749/758 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2279 event pairs, 7 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 1929. Up to 98 conditions per place. [2023-08-31 20:07:00,270 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 79 selfloop transitions, 60 changer transitions 42/182 dead transitions. [2023-08-31 20:07:00,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 182 transitions, 1560 flow [2023-08-31 20:07:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:07:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:07:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 712 transitions. [2023-08-31 20:07:00,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43309002433090027 [2023-08-31 20:07:00,273 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 712 transitions. [2023-08-31 20:07:00,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 712 transitions. [2023-08-31 20:07:00,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:00,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 712 transitions. [2023-08-31 20:07:00,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.333333333333336) internal successors, (712), 12 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:00,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:00,278 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:00,278 INFO L175 Difference]: Start difference. First operand has 57 places, 88 transitions, 642 flow. Second operand 12 states and 712 transitions. [2023-08-31 20:07:00,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 182 transitions, 1560 flow [2023-08-31 20:07:00,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 182 transitions, 1559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:07:00,288 INFO L231 Difference]: Finished difference. Result has 73 places, 94 transitions, 899 flow [2023-08-31 20:07:00,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=899, PETRI_PLACES=73, PETRI_TRANSITIONS=94} [2023-08-31 20:07:00,289 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 49 predicate places. [2023-08-31 20:07:00,289 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 94 transitions, 899 flow [2023-08-31 20:07:00,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:00,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:00,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:00,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:07:00,290 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:00,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1613412695, now seen corresponding path program 1 times [2023-08-31 20:07:00,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:00,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385996684] [2023-08-31 20:07:00,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:00,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:00,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385996684] [2023-08-31 20:07:00,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385996684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:00,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:00,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:00,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137386009] [2023-08-31 20:07:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:00,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:00,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:00,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:00,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 94 transitions, 899 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:00,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:00,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:00,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:01,193 INFO L130 PetriNetUnfolder]: 194/457 cut-off events. [2023-08-31 20:07:01,193 INFO L131 PetriNetUnfolder]: For 1632/1638 co-relation queries the response was YES. [2023-08-31 20:07:01,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 457 events. 194/457 cut-off events. For 1632/1638 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2350 event pairs, 13 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 2364. Up to 350 conditions per place. [2023-08-31 20:07:01,197 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 65 selfloop transitions, 46 changer transitions 25/137 dead transitions. [2023-08-31 20:07:01,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 137 transitions, 1564 flow [2023-08-31 20:07:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:07:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:07:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 593 transitions. [2023-08-31 20:07:01,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43284671532846714 [2023-08-31 20:07:01,202 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 593 transitions. [2023-08-31 20:07:01,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 593 transitions. [2023-08-31 20:07:01,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:01,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 593 transitions. [2023-08-31 20:07:01,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.3) internal successors, (593), 10 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:01,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:01,207 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:01,207 INFO L175 Difference]: Start difference. First operand has 73 places, 94 transitions, 899 flow. Second operand 10 states and 593 transitions. [2023-08-31 20:07:01,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 137 transitions, 1564 flow [2023-08-31 20:07:01,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 137 transitions, 1496 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-31 20:07:01,221 INFO L231 Difference]: Finished difference. Result has 79 places, 102 transitions, 1144 flow [2023-08-31 20:07:01,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=79, PETRI_TRANSITIONS=102} [2023-08-31 20:07:01,224 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 55 predicate places. [2023-08-31 20:07:01,224 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 102 transitions, 1144 flow [2023-08-31 20:07:01,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:01,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:01,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:01,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:07:01,226 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:01,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:01,227 INFO L85 PathProgramCache]: Analyzing trace with hash 313398775, now seen corresponding path program 2 times [2023-08-31 20:07:01,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:01,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794912612] [2023-08-31 20:07:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:01,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:01,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:01,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794912612] [2023-08-31 20:07:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794912612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:01,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:01,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537564948] [2023-08-31 20:07:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:01,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:01,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:02,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:02,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 102 transitions, 1144 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:02,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:02,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:02,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:02,464 INFO L130 PetriNetUnfolder]: 188/454 cut-off events. [2023-08-31 20:07:02,464 INFO L131 PetriNetUnfolder]: For 1960/1966 co-relation queries the response was YES. [2023-08-31 20:07:02,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 454 events. 188/454 cut-off events. For 1960/1966 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2312 event pairs, 27 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 2553. Up to 292 conditions per place. [2023-08-31 20:07:02,468 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 55 selfloop transitions, 57 changer transitions 29/142 dead transitions. [2023-08-31 20:07:02,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 142 transitions, 1760 flow [2023-08-31 20:07:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:07:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:07:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 649 transitions. [2023-08-31 20:07:02,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306569343065693 [2023-08-31 20:07:02,471 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 649 transitions. [2023-08-31 20:07:02,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 649 transitions. [2023-08-31 20:07:02,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:02,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 649 transitions. [2023-08-31 20:07:02,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 59.0) internal successors, (649), 11 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:02,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:02,476 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:02,476 INFO L175 Difference]: Start difference. First operand has 79 places, 102 transitions, 1144 flow. Second operand 11 states and 649 transitions. [2023-08-31 20:07:02,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 142 transitions, 1760 flow [2023-08-31 20:07:02,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 142 transitions, 1738 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-31 20:07:02,492 INFO L231 Difference]: Finished difference. Result has 87 places, 102 transitions, 1266 flow [2023-08-31 20:07:02,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1266, PETRI_PLACES=87, PETRI_TRANSITIONS=102} [2023-08-31 20:07:02,493 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 63 predicate places. [2023-08-31 20:07:02,493 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 102 transitions, 1266 flow [2023-08-31 20:07:02,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:02,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:02,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:02,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:07:02,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:02,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:02,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1693801217, now seen corresponding path program 3 times [2023-08-31 20:07:02,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:02,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169866514] [2023-08-31 20:07:02,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:02,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:02,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:02,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169866514] [2023-08-31 20:07:02,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169866514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:02,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:02,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:02,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184055187] [2023-08-31 20:07:02,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:02,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:02,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:02,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:02,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:03,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:03,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 102 transitions, 1266 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:03,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:03,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:03,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:03,690 INFO L130 PetriNetUnfolder]: 209/496 cut-off events. [2023-08-31 20:07:03,691 INFO L131 PetriNetUnfolder]: For 2420/2428 co-relation queries the response was YES. [2023-08-31 20:07:03,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3048 conditions, 496 events. 209/496 cut-off events. For 2420/2428 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2649 event pairs, 13 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 3008. Up to 178 conditions per place. [2023-08-31 20:07:03,695 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 113 selfloop transitions, 12 changer transitions 95/221 dead transitions. [2023-08-31 20:07:03,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 221 transitions, 2806 flow [2023-08-31 20:07:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-31 20:07:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-31 20:07:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 927 transitions. [2023-08-31 20:07:03,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4229014598540146 [2023-08-31 20:07:03,699 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 927 transitions. [2023-08-31 20:07:03,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 927 transitions. [2023-08-31 20:07:03,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:03,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 927 transitions. [2023-08-31 20:07:03,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 57.9375) internal successors, (927), 16 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:03,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:03,705 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:03,706 INFO L175 Difference]: Start difference. First operand has 87 places, 102 transitions, 1266 flow. Second operand 16 states and 927 transitions. [2023-08-31 20:07:03,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 221 transitions, 2806 flow [2023-08-31 20:07:03,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 221 transitions, 2676 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-08-31 20:07:03,722 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 1057 flow [2023-08-31 20:07:03,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1057, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2023-08-31 20:07:03,723 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 76 predicate places. [2023-08-31 20:07:03,723 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 1057 flow [2023-08-31 20:07:03,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:03,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:03,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:03,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:07:03,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:03,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 356297815, now seen corresponding path program 4 times [2023-08-31 20:07:03,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:03,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184505535] [2023-08-31 20:07:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:04,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:04,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184505535] [2023-08-31 20:07:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184505535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:04,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627890812] [2023-08-31 20:07:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:04,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:04,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:04,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:04,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 1057 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:04,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:04,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:04,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:05,280 INFO L130 PetriNetUnfolder]: 148/363 cut-off events. [2023-08-31 20:07:05,280 INFO L131 PetriNetUnfolder]: For 2217/2225 co-relation queries the response was YES. [2023-08-31 20:07:05,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2343 conditions, 363 events. 148/363 cut-off events. For 2217/2225 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1744 event pairs, 23 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 2296. Up to 254 conditions per place. [2023-08-31 20:07:05,285 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 53 selfloop transitions, 50 changer transitions 16/120 dead transitions. [2023-08-31 20:07:05,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 120 transitions, 1616 flow [2023-08-31 20:07:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:07:05,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:07:05,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 700 transitions. [2023-08-31 20:07:05,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4257907542579075 [2023-08-31 20:07:05,288 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 700 transitions. [2023-08-31 20:07:05,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 700 transitions. [2023-08-31 20:07:05,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:05,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 700 transitions. [2023-08-31 20:07:05,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.333333333333336) internal successors, (700), 12 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:05,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:05,293 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:05,293 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 1057 flow. Second operand 12 states and 700 transitions. [2023-08-31 20:07:05,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 120 transitions, 1616 flow [2023-08-31 20:07:05,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 120 transitions, 1456 flow, removed 65 selfloop flow, removed 13 redundant places. [2023-08-31 20:07:05,313 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 1120 flow [2023-08-31 20:07:05,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1120, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2023-08-31 20:07:05,315 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 70 predicate places. [2023-08-31 20:07:05,315 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 1120 flow [2023-08-31 20:07:05,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:05,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:05,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:05,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:07:05,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:05,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:05,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1341160227, now seen corresponding path program 3 times [2023-08-31 20:07:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:05,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755231935] [2023-08-31 20:07:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:05,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:05,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755231935] [2023-08-31 20:07:05,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755231935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:05,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:05,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:05,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54304687] [2023-08-31 20:07:05,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:05,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:05,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:05,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:05,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:06,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:06,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 1120 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:06,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:06,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:06,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:06,861 INFO L130 PetriNetUnfolder]: 172/422 cut-off events. [2023-08-31 20:07:06,861 INFO L131 PetriNetUnfolder]: For 2309/2345 co-relation queries the response was YES. [2023-08-31 20:07:06,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 422 events. 172/422 cut-off events. For 2309/2345 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2175 event pairs, 10 based on Foata normal form. 10/432 useless extension candidates. Maximal degree in co-relation 2621. Up to 130 conditions per place. [2023-08-31 20:07:06,866 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 137 selfloop transitions, 37 changer transitions 32/207 dead transitions. [2023-08-31 20:07:06,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 207 transitions, 2641 flow [2023-08-31 20:07:06,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:07:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:07:06,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 869 transitions. [2023-08-31 20:07:06,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42287104622871047 [2023-08-31 20:07:06,869 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 869 transitions. [2023-08-31 20:07:06,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 869 transitions. [2023-08-31 20:07:06,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:06,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 869 transitions. [2023-08-31 20:07:06,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 57.93333333333333) internal successors, (869), 15 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:06,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:06,875 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:06,875 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 1120 flow. Second operand 15 states and 869 transitions. [2023-08-31 20:07:06,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 207 transitions, 2641 flow [2023-08-31 20:07:06,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 207 transitions, 2399 flow, removed 23 selfloop flow, removed 9 redundant places. [2023-08-31 20:07:06,893 INFO L231 Difference]: Finished difference. Result has 107 places, 115 transitions, 1466 flow [2023-08-31 20:07:06,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1466, PETRI_PLACES=107, PETRI_TRANSITIONS=115} [2023-08-31 20:07:06,894 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 83 predicate places. [2023-08-31 20:07:06,894 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 115 transitions, 1466 flow [2023-08-31 20:07:06,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:06,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:06,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:06,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:07:06,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:06,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1611913535, now seen corresponding path program 5 times [2023-08-31 20:07:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:06,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876600168] [2023-08-31 20:07:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:06,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:07,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:07,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876600168] [2023-08-31 20:07:07,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876600168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:07,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:07,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:07,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535411987] [2023-08-31 20:07:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:07,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:07,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:07,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:07,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:07,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:07,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 115 transitions, 1466 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:07,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:07,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:07,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:07,657 INFO L130 PetriNetUnfolder]: 194/458 cut-off events. [2023-08-31 20:07:07,658 INFO L131 PetriNetUnfolder]: For 2994/3006 co-relation queries the response was YES. [2023-08-31 20:07:07,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2958 conditions, 458 events. 194/458 cut-off events. For 2994/3006 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2345 event pairs, 25 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 2910. Up to 358 conditions per place. [2023-08-31 20:07:07,663 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 73 selfloop transitions, 48 changer transitions 35/157 dead transitions. [2023-08-31 20:07:07,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 157 transitions, 2245 flow [2023-08-31 20:07:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:07:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:07:07,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 645 transitions. [2023-08-31 20:07:07,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42800265428002654 [2023-08-31 20:07:07,667 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 645 transitions. [2023-08-31 20:07:07,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 645 transitions. [2023-08-31 20:07:07,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:07,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 645 transitions. [2023-08-31 20:07:07,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 58.63636363636363) internal successors, (645), 11 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:07,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:07,673 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:07,673 INFO L175 Difference]: Start difference. First operand has 107 places, 115 transitions, 1466 flow. Second operand 11 states and 645 transitions. [2023-08-31 20:07:07,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 157 transitions, 2245 flow [2023-08-31 20:07:07,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 157 transitions, 2183 flow, removed 24 selfloop flow, removed 7 redundant places. [2023-08-31 20:07:07,694 INFO L231 Difference]: Finished difference. Result has 109 places, 115 transitions, 1539 flow [2023-08-31 20:07:07,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1539, PETRI_PLACES=109, PETRI_TRANSITIONS=115} [2023-08-31 20:07:07,696 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 85 predicate places. [2023-08-31 20:07:07,696 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 115 transitions, 1539 flow [2023-08-31 20:07:07,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:07,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:07,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:07,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:07:07,697 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:07,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash 355920339, now seen corresponding path program 4 times [2023-08-31 20:07:07,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:07,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918950241] [2023-08-31 20:07:07,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:07,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:08,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:08,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918950241] [2023-08-31 20:07:08,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918950241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:08,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:08,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:08,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184351967] [2023-08-31 20:07:08,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:08,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:08,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:08,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:08,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:08,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:08,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 115 transitions, 1539 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:08,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:08,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:08,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:08,964 INFO L130 PetriNetUnfolder]: 180/443 cut-off events. [2023-08-31 20:07:08,964 INFO L131 PetriNetUnfolder]: For 2896/2912 co-relation queries the response was YES. [2023-08-31 20:07:08,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 443 events. 180/443 cut-off events. For 2896/2912 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2304 event pairs, 10 based on Foata normal form. 10/453 useless extension candidates. Maximal degree in co-relation 2954. Up to 153 conditions per place. [2023-08-31 20:07:08,968 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 97 selfloop transitions, 66 changer transitions 22/186 dead transitions. [2023-08-31 20:07:08,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 2648 flow [2023-08-31 20:07:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:07:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:07:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 703 transitions. [2023-08-31 20:07:08,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276155717761557 [2023-08-31 20:07:08,976 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 703 transitions. [2023-08-31 20:07:08,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 703 transitions. [2023-08-31 20:07:08,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:08,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 703 transitions. [2023-08-31 20:07:08,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.583333333333336) internal successors, (703), 12 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:08,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:08,981 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:08,981 INFO L175 Difference]: Start difference. First operand has 109 places, 115 transitions, 1539 flow. Second operand 12 states and 703 transitions. [2023-08-31 20:07:08,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 186 transitions, 2648 flow [2023-08-31 20:07:08,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 186 transitions, 2450 flow, removed 17 selfloop flow, removed 10 redundant places. [2023-08-31 20:07:09,002 INFO L231 Difference]: Finished difference. Result has 113 places, 121 transitions, 1703 flow [2023-08-31 20:07:09,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1429, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1703, PETRI_PLACES=113, PETRI_TRANSITIONS=121} [2023-08-31 20:07:09,003 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 89 predicate places. [2023-08-31 20:07:09,003 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 121 transitions, 1703 flow [2023-08-31 20:07:09,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:09,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:09,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:09,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:07:09,004 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:09,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1707927225, now seen corresponding path program 6 times [2023-08-31 20:07:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918416499] [2023-08-31 20:07:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:09,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:09,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:09,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918416499] [2023-08-31 20:07:09,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918416499] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:09,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:09,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:09,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192237383] [2023-08-31 20:07:09,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:09,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:09,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:09,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:09,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:09,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:09,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 121 transitions, 1703 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:09,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:09,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:09,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:09,749 INFO L130 PetriNetUnfolder]: 193/466 cut-off events. [2023-08-31 20:07:09,749 INFO L131 PetriNetUnfolder]: For 3863/3875 co-relation queries the response was YES. [2023-08-31 20:07:09,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 466 events. 193/466 cut-off events. For 3863/3875 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2422 event pairs, 28 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 3203. Up to 333 conditions per place. [2023-08-31 20:07:09,753 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 69 selfloop transitions, 66 changer transitions 14/150 dead transitions. [2023-08-31 20:07:09,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 150 transitions, 2356 flow [2023-08-31 20:07:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:07:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:07:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 582 transitions. [2023-08-31 20:07:09,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4248175182481752 [2023-08-31 20:07:09,756 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 582 transitions. [2023-08-31 20:07:09,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 582 transitions. [2023-08-31 20:07:09,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:09,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 582 transitions. [2023-08-31 20:07:09,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.2) internal successors, (582), 10 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:09,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:09,759 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:09,759 INFO L175 Difference]: Start difference. First operand has 113 places, 121 transitions, 1703 flow. Second operand 10 states and 582 transitions. [2023-08-31 20:07:09,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 150 transitions, 2356 flow [2023-08-31 20:07:09,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 150 transitions, 2212 flow, removed 9 selfloop flow, removed 8 redundant places. [2023-08-31 20:07:09,781 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 1884 flow [2023-08-31 20:07:09,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1585, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1884, PETRI_PLACES=118, PETRI_TRANSITIONS=128} [2023-08-31 20:07:09,782 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 94 predicate places. [2023-08-31 20:07:09,782 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 1884 flow [2023-08-31 20:07:09,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:09,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:09,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:09,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:07:09,783 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:09,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:09,784 INFO L85 PathProgramCache]: Analyzing trace with hash 421187283, now seen corresponding path program 5 times [2023-08-31 20:07:09,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:09,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970239677] [2023-08-31 20:07:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:10,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:10,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970239677] [2023-08-31 20:07:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970239677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:10,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:10,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856508525] [2023-08-31 20:07:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:10,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:10,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:10,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:10,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 1884 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:10,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:10,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:10,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:10,954 INFO L130 PetriNetUnfolder]: 201/495 cut-off events. [2023-08-31 20:07:10,954 INFO L131 PetriNetUnfolder]: For 4391/4409 co-relation queries the response was YES. [2023-08-31 20:07:10,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 495 events. 201/495 cut-off events. For 4391/4409 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2667 event pairs, 19 based on Foata normal form. 10/505 useless extension candidates. Maximal degree in co-relation 3514. Up to 181 conditions per place. [2023-08-31 20:07:10,960 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 125 selfloop transitions, 54 changer transitions 28/208 dead transitions. [2023-08-31 20:07:10,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 208 transitions, 3198 flow [2023-08-31 20:07:10,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:07:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:07:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 805 transitions. [2023-08-31 20:07:10,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197080291970803 [2023-08-31 20:07:10,962 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 805 transitions. [2023-08-31 20:07:10,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 805 transitions. [2023-08-31 20:07:10,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:10,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 805 transitions. [2023-08-31 20:07:10,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.5) internal successors, (805), 14 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:10,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:10,966 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:10,966 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 1884 flow. Second operand 14 states and 805 transitions. [2023-08-31 20:07:10,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 208 transitions, 3198 flow [2023-08-31 20:07:10,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 208 transitions, 3072 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-31 20:07:10,993 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 2230 flow [2023-08-31 20:07:10,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2230, PETRI_PLACES=134, PETRI_TRANSITIONS=139} [2023-08-31 20:07:10,994 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2023-08-31 20:07:10,994 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 2230 flow [2023-08-31 20:07:10,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:10,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:10,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:10,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:07:10,995 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:10,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1687260111, now seen corresponding path program 7 times [2023-08-31 20:07:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:10,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779901434] [2023-08-31 20:07:10,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:11,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779901434] [2023-08-31 20:07:11,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779901434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:11,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:11,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:11,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209670753] [2023-08-31 20:07:11,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:11,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:11,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:11,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:11,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:11,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 139 transitions, 2230 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:11,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:11,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:11,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:11,985 INFO L130 PetriNetUnfolder]: 273/637 cut-off events. [2023-08-31 20:07:11,985 INFO L131 PetriNetUnfolder]: For 5909/5921 co-relation queries the response was YES. [2023-08-31 20:07:11,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4523 conditions, 637 events. 273/637 cut-off events. For 5909/5921 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3624 event pairs, 33 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 4463. Up to 424 conditions per place. [2023-08-31 20:07:11,992 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 106 selfloop transitions, 57 changer transitions 57/221 dead transitions. [2023-08-31 20:07:11,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 221 transitions, 3574 flow [2023-08-31 20:07:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:07:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:07:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2023-08-31 20:07:11,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335766423357664 [2023-08-31 20:07:11,994 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2023-08-31 20:07:11,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2023-08-31 20:07:11,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:11,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2023-08-31 20:07:11,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.4) internal successors, (594), 10 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:11,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,000 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,000 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 2230 flow. Second operand 10 states and 594 transitions. [2023-08-31 20:07:12,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 221 transitions, 3574 flow [2023-08-31 20:07:12,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 221 transitions, 3340 flow, removed 34 selfloop flow, removed 10 redundant places. [2023-08-31 20:07:12,036 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 2246 flow [2023-08-31 20:07:12,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2045, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2246, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2023-08-31 20:07:12,039 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-31 20:07:12,039 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 2246 flow [2023-08-31 20:07:12,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:12,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:12,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 20:07:12,040 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:12,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:12,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1564545845, now seen corresponding path program 8 times [2023-08-31 20:07:12,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:12,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715452641] [2023-08-31 20:07:12,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:12,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:12,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:12,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715452641] [2023-08-31 20:07:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715452641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:12,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540597804] [2023-08-31 20:07:12,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:12,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:12,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:12,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:12,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 2246 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:12,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:12,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:12,937 INFO L130 PetriNetUnfolder]: 216/531 cut-off events. [2023-08-31 20:07:12,937 INFO L131 PetriNetUnfolder]: For 5366/5375 co-relation queries the response was YES. [2023-08-31 20:07:12,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4022 conditions, 531 events. 216/531 cut-off events. For 5366/5375 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2970 event pairs, 29 based on Foata normal form. 10/541 useless extension candidates. Maximal degree in co-relation 3960. Up to 402 conditions per place. [2023-08-31 20:07:12,943 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 80 selfloop transitions, 55 changer transitions 48/184 dead transitions. [2023-08-31 20:07:12,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 184 transitions, 3142 flow [2023-08-31 20:07:12,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:07:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:07:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 588 transitions. [2023-08-31 20:07:12,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291970802919708 [2023-08-31 20:07:12,945 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 588 transitions. [2023-08-31 20:07:12,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 588 transitions. [2023-08-31 20:07:12,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:12,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 588 transitions. [2023-08-31 20:07:12,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.8) internal successors, (588), 10 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,949 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,949 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 2246 flow. Second operand 10 states and 588 transitions. [2023-08-31 20:07:12,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 184 transitions, 3142 flow [2023-08-31 20:07:12,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 184 transitions, 3013 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-08-31 20:07:12,983 INFO L231 Difference]: Finished difference. Result has 137 places, 133 transitions, 2183 flow [2023-08-31 20:07:12,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2145, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2183, PETRI_PLACES=137, PETRI_TRANSITIONS=133} [2023-08-31 20:07:12,984 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 113 predicate places. [2023-08-31 20:07:12,984 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 2183 flow [2023-08-31 20:07:12,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:12,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:12,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:12,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 20:07:12,985 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:12,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:12,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1762740535, now seen corresponding path program 9 times [2023-08-31 20:07:12,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:12,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557977831] [2023-08-31 20:07:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:12,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:13,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:13,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557977831] [2023-08-31 20:07:13,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557977831] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:13,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:13,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:13,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783909636] [2023-08-31 20:07:13,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:13,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:13,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:13,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:13,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:13,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:13,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 2183 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:13,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:13,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:13,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:13,973 INFO L130 PetriNetUnfolder]: 243/573 cut-off events. [2023-08-31 20:07:13,974 INFO L131 PetriNetUnfolder]: For 5393/5402 co-relation queries the response was YES. [2023-08-31 20:07:13,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4197 conditions, 573 events. 243/573 cut-off events. For 5393/5402 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3218 event pairs, 26 based on Foata normal form. 10/583 useless extension candidates. Maximal degree in co-relation 4135. Up to 364 conditions per place. [2023-08-31 20:07:13,980 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 90 selfloop transitions, 65 changer transitions 43/199 dead transitions. [2023-08-31 20:07:13,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 199 transitions, 3299 flow [2023-08-31 20:07:13,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:07:13,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:07:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2023-08-31 20:07:13,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4335766423357664 [2023-08-31 20:07:13,984 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2023-08-31 20:07:13,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2023-08-31 20:07:13,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:13,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2023-08-31 20:07:13,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.4) internal successors, (594), 10 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:13,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:13,988 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:13,988 INFO L175 Difference]: Start difference. First operand has 137 places, 133 transitions, 2183 flow. Second operand 10 states and 594 transitions. [2023-08-31 20:07:13,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 199 transitions, 3299 flow [2023-08-31 20:07:14,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 199 transitions, 2896 flow, removed 59 selfloop flow, removed 16 redundant places. [2023-08-31 20:07:14,022 INFO L231 Difference]: Finished difference. Result has 132 places, 135 transitions, 2126 flow [2023-08-31 20:07:14,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2126, PETRI_PLACES=132, PETRI_TRANSITIONS=135} [2023-08-31 20:07:14,023 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 108 predicate places. [2023-08-31 20:07:14,023 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 135 transitions, 2126 flow [2023-08-31 20:07:14,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:14,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:14,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:14,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 20:07:14,024 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:14,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1042069201, now seen corresponding path program 10 times [2023-08-31 20:07:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088526782] [2023-08-31 20:07:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:14,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:14,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088526782] [2023-08-31 20:07:14,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088526782] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:14,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:14,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:14,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744454533] [2023-08-31 20:07:14,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:14,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:14,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:14,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:14,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:14,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:14,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 135 transitions, 2126 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:14,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:14,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:14,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:15,541 INFO L130 PetriNetUnfolder]: 233/563 cut-off events. [2023-08-31 20:07:15,541 INFO L131 PetriNetUnfolder]: For 5037/5049 co-relation queries the response was YES. [2023-08-31 20:07:15,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 563 events. 233/563 cut-off events. For 5037/5049 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3166 event pairs, 24 based on Foata normal form. 10/573 useless extension candidates. Maximal degree in co-relation 3984. Up to 281 conditions per place. [2023-08-31 20:07:15,545 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 93 selfloop transitions, 61 changer transitions 72/227 dead transitions. [2023-08-31 20:07:15,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 227 transitions, 3533 flow [2023-08-31 20:07:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:07:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:07:15,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 812 transitions. [2023-08-31 20:07:15,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233576642335766 [2023-08-31 20:07:15,547 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 812 transitions. [2023-08-31 20:07:15,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 812 transitions. [2023-08-31 20:07:15,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:15,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 812 transitions. [2023-08-31 20:07:15,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 58.0) internal successors, (812), 14 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:15,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:15,552 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:15,552 INFO L175 Difference]: Start difference. First operand has 132 places, 135 transitions, 2126 flow. Second operand 14 states and 812 transitions. [2023-08-31 20:07:15,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 227 transitions, 3533 flow [2023-08-31 20:07:15,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 227 transitions, 3435 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-08-31 20:07:15,582 INFO L231 Difference]: Finished difference. Result has 146 places, 134 transitions, 2242 flow [2023-08-31 20:07:15,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2079, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2242, PETRI_PLACES=146, PETRI_TRANSITIONS=134} [2023-08-31 20:07:15,583 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 122 predicate places. [2023-08-31 20:07:15,583 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 134 transitions, 2242 flow [2023-08-31 20:07:15,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:15,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:15,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:15,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 20:07:15,584 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:15,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2032720867, now seen corresponding path program 6 times [2023-08-31 20:07:15,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:15,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44017715] [2023-08-31 20:07:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:15,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:15,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:15,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44017715] [2023-08-31 20:07:15,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44017715] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:15,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:15,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:15,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377993380] [2023-08-31 20:07:15,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:15,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:15,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:15,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:16,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:16,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 134 transitions, 2242 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:16,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:16,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:16,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:16,774 INFO L130 PetriNetUnfolder]: 155/416 cut-off events. [2023-08-31 20:07:16,774 INFO L131 PetriNetUnfolder]: For 5038/5053 co-relation queries the response was YES. [2023-08-31 20:07:16,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3310 conditions, 416 events. 155/416 cut-off events. For 5038/5053 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2302 event pairs, 1 based on Foata normal form. 10/426 useless extension candidates. Maximal degree in co-relation 3245. Up to 178 conditions per place. [2023-08-31 20:07:16,778 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 108 selfloop transitions, 55 changer transitions 30/194 dead transitions. [2023-08-31 20:07:16,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 194 transitions, 3323 flow [2023-08-31 20:07:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 20:07:16,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 20:07:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 749 transitions. [2023-08-31 20:07:16,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.420550252667041 [2023-08-31 20:07:16,780 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 749 transitions. [2023-08-31 20:07:16,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 749 transitions. [2023-08-31 20:07:16,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:16,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 749 transitions. [2023-08-31 20:07:16,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 57.61538461538461) internal successors, (749), 13 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:16,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:16,785 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:16,785 INFO L175 Difference]: Start difference. First operand has 146 places, 134 transitions, 2242 flow. Second operand 13 states and 749 transitions. [2023-08-31 20:07:16,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 194 transitions, 3323 flow [2023-08-31 20:07:16,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 194 transitions, 3049 flow, removed 64 selfloop flow, removed 17 redundant places. [2023-08-31 20:07:16,816 INFO L231 Difference]: Finished difference. Result has 136 places, 125 transitions, 2092 flow [2023-08-31 20:07:16,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=2053, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2092, PETRI_PLACES=136, PETRI_TRANSITIONS=125} [2023-08-31 20:07:16,816 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 112 predicate places. [2023-08-31 20:07:16,817 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 125 transitions, 2092 flow [2023-08-31 20:07:16,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:16,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:16,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:16,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 20:07:16,818 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:16,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:16,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1688030159, now seen corresponding path program 11 times [2023-08-31 20:07:16,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:16,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195130966] [2023-08-31 20:07:16,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:16,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:17,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:17,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195130966] [2023-08-31 20:07:17,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195130966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:17,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:17,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:17,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123653183] [2023-08-31 20:07:17,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:17,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:17,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:17,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:17,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:17,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:17,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 2092 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:17,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:17,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:17,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:18,210 INFO L130 PetriNetUnfolder]: 152/396 cut-off events. [2023-08-31 20:07:18,210 INFO L131 PetriNetUnfolder]: For 4042/4042 co-relation queries the response was YES. [2023-08-31 20:07:18,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2949 conditions, 396 events. 152/396 cut-off events. For 4042/4042 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2094 event pairs, 22 based on Foata normal form. 1/397 useless extension candidates. Maximal degree in co-relation 2892. Up to 191 conditions per place. [2023-08-31 20:07:18,213 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 70 selfloop transitions, 86 changer transitions 5/161 dead transitions. [2023-08-31 20:07:18,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 161 transitions, 2715 flow [2023-08-31 20:07:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-31 20:07:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-31 20:07:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1063 transitions. [2023-08-31 20:07:18,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083749519784864 [2023-08-31 20:07:18,217 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1063 transitions. [2023-08-31 20:07:18,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1063 transitions. [2023-08-31 20:07:18,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:18,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1063 transitions. [2023-08-31 20:07:18,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 55.94736842105263) internal successors, (1063), 19 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:18,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 137.0) internal successors, (2740), 20 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:18,222 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 137.0) internal successors, (2740), 20 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:18,222 INFO L175 Difference]: Start difference. First operand has 136 places, 125 transitions, 2092 flow. Second operand 19 states and 1063 transitions. [2023-08-31 20:07:18,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 161 transitions, 2715 flow [2023-08-31 20:07:18,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 161 transitions, 2280 flow, removed 32 selfloop flow, removed 17 redundant places. [2023-08-31 20:07:18,241 INFO L231 Difference]: Finished difference. Result has 135 places, 135 transitions, 2031 flow [2023-08-31 20:07:18,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1677, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2031, PETRI_PLACES=135, PETRI_TRANSITIONS=135} [2023-08-31 20:07:18,242 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 111 predicate places. [2023-08-31 20:07:18,242 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 135 transitions, 2031 flow [2023-08-31 20:07:18,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:18,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:18,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:18,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 20:07:18,243 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:18,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:18,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1757180025, now seen corresponding path program 12 times [2023-08-31 20:07:18,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:18,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062381731] [2023-08-31 20:07:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:18,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:18,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:18,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062381731] [2023-08-31 20:07:18,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062381731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:18,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:18,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:18,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027849245] [2023-08-31 20:07:18,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:18,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:18,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:18,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:18,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:18,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:18,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 135 transitions, 2031 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:18,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:18,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:18,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:19,020 INFO L130 PetriNetUnfolder]: 134/354 cut-off events. [2023-08-31 20:07:19,020 INFO L131 PetriNetUnfolder]: For 2684/2684 co-relation queries the response was YES. [2023-08-31 20:07:19,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 354 events. 134/354 cut-off events. For 2684/2684 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1834 event pairs, 12 based on Foata normal form. 20/374 useless extension candidates. Maximal degree in co-relation 2492. Up to 210 conditions per place. [2023-08-31 20:07:19,023 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 54 selfloop transitions, 50 changer transitions 63/167 dead transitions. [2023-08-31 20:07:19,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 167 transitions, 2646 flow [2023-08-31 20:07:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:07:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:07:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 852 transitions. [2023-08-31 20:07:19,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4145985401459854 [2023-08-31 20:07:19,025 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 852 transitions. [2023-08-31 20:07:19,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 852 transitions. [2023-08-31 20:07:19,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:19,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 852 transitions. [2023-08-31 20:07:19,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 56.8) internal successors, (852), 15 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,029 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,029 INFO L175 Difference]: Start difference. First operand has 135 places, 135 transitions, 2031 flow. Second operand 15 states and 852 transitions. [2023-08-31 20:07:19,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 167 transitions, 2646 flow [2023-08-31 20:07:19,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 167 transitions, 2224 flow, removed 41 selfloop flow, removed 17 redundant places. [2023-08-31 20:07:19,044 INFO L231 Difference]: Finished difference. Result has 134 places, 100 transitions, 1353 flow [2023-08-31 20:07:19,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1645, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1353, PETRI_PLACES=134, PETRI_TRANSITIONS=100} [2023-08-31 20:07:19,045 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 110 predicate places. [2023-08-31 20:07:19,045 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 100 transitions, 1353 flow [2023-08-31 20:07:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:19,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:19,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 20:07:19,046 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-31 20:07:19,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:19,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1700542379, now seen corresponding path program 13 times [2023-08-31 20:07:19,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:19,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062270428] [2023-08-31 20:07:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:19,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:19,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:19,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:19,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062270428] [2023-08-31 20:07:19,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062270428] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:19,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:19,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:07:19,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154832475] [2023-08-31 20:07:19,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:19,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:07:19,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:19,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:07:19,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:07:19,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 137 [2023-08-31 20:07:19,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 100 transitions, 1353 flow. Second operand has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:19,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 137 [2023-08-31 20:07:19,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:19,829 INFO L130 PetriNetUnfolder]: 93/235 cut-off events. [2023-08-31 20:07:19,829 INFO L131 PetriNetUnfolder]: For 1346/1346 co-relation queries the response was YES. [2023-08-31 20:07:19,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 235 events. 93/235 cut-off events. For 1346/1346 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1056 event pairs, 8 based on Foata normal form. 16/251 useless extension candidates. Maximal degree in co-relation 1627. Up to 69 conditions per place. [2023-08-31 20:07:19,830 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-08-31 20:07:19,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 150 transitions, 2101 flow [2023-08-31 20:07:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:07:19,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:07:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 829 transitions. [2023-08-31 20:07:19,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40340632603406323 [2023-08-31 20:07:19,832 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 829 transitions. [2023-08-31 20:07:19,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 829 transitions. [2023-08-31 20:07:19,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:19,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 829 transitions. [2023-08-31 20:07:19,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.266666666666666) internal successors, (829), 15 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,835 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 137.0) internal successors, (2192), 16 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,835 INFO L175 Difference]: Start difference. First operand has 134 places, 100 transitions, 1353 flow. Second operand 15 states and 829 transitions. [2023-08-31 20:07:19,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 150 transitions, 2101 flow [2023-08-31 20:07:19,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 150 transitions, 1665 flow, removed 19 selfloop flow, removed 27 redundant places. [2023-08-31 20:07:19,843 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow [2023-08-31 20:07:19,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=90, PETRI_TRANSITIONS=0} [2023-08-31 20:07:19,844 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 66 predicate places. [2023-08-31 20:07:19,844 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow [2023-08-31 20:07:19,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:07:19,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-31 20:07:19,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-31 20:07:19,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-31 20:07:19,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-31 20:07:19,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 20:07:19,847 INFO L445 BasicCegarLoop]: Path program histogram: [13, 6, 1, 1] [2023-08-31 20:07:19,851 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:07:19,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:07:19,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:07:19 BasicIcfg [2023-08-31 20:07:19,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:07:19,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:07:19,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:07:19,854 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:07:19,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:06:52" (3/4) ... [2023-08-31 20:07:19,857 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:07:19,861 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:07:19,864 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-31 20:07:19,865 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 20:07:19,865 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:07:19,890 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:07:19,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:07:19,891 INFO L158 Benchmark]: Toolchain (without parser) took 28607.84ms. Allocated memory was 81.8MB in the beginning and 308.3MB in the end (delta: 226.5MB). Free memory was 60.7MB in the beginning and 109.0MB in the end (delta: -48.3MB). Peak memory consumption was 177.7MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,891 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:07:19,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.75ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 53.0MB in the end (delta: 7.4MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.27ms. Allocated memory is still 81.8MB. Free memory was 53.0MB in the beginning and 50.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,892 INFO L158 Benchmark]: Boogie Preprocessor took 34.28ms. Allocated memory is still 81.8MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,892 INFO L158 Benchmark]: RCFGBuilder took 391.49ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 35.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,892 INFO L158 Benchmark]: TraceAbstraction took 27498.38ms. Allocated memory was 81.8MB in the beginning and 308.3MB in the end (delta: 226.5MB). Free memory was 58.2MB in the beginning and 111.1MB in the end (delta: -52.9MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,893 INFO L158 Benchmark]: Witness Printer took 36.59ms. Allocated memory is still 308.3MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:07:19,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.75ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 53.0MB in the end (delta: 7.4MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.27ms. Allocated memory is still 81.8MB. Free memory was 53.0MB in the beginning and 50.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.28ms. Allocated memory is still 81.8MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.49ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 35.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27498.38ms. Allocated memory was 81.8MB in the beginning and 308.3MB in the end (delta: 226.5MB). Free memory was 58.2MB in the beginning and 111.1MB in the end (delta: -52.9MB). Peak memory consumption was 173.4MB. Max. memory is 16.1GB. * Witness Printer took 36.59ms. Allocated memory is still 308.3MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 81 PlacesBefore, 24 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2759 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 956, independent: 716, independent conditional: 0, independent unconditional: 716, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 312, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 956, independent: 430, independent conditional: 0, independent unconditional: 430, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.3s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4521 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3827 mSDsluCounter, 1393 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1345 mSDsCounter, 736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13139 IncrementalHoareTripleChecker+Invalid, 13875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 736 mSolverCounterUnsat, 48 mSDtfsCounter, 13139 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 321 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2246occurred in iteration=14, InterpolantAutomatonStates: 251, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 5904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:07:19,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE