./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:23:53,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:23:53,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:23:53,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:23:53,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:23:53,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:23:53,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:23:53,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:23:53,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:23:53,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:23:53,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:23:53,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:23:53,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:23:53,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:23:53,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:23:53,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:23:53,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:23:53,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:23:53,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:23:53,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:23:53,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:23:53,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:23:53,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:23:53,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:23:53,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:23:53,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:23:53,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:23:53,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:23:53,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:23:53,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:23:53,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:23:53,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:23:53,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:23:53,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:23:53,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:23:53,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:23:53,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:23:53,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:23:53,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:23:53,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:23:53,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:23:53,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:23:53,260 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:23:53,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:23:53,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:23:53,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:23:53,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:23:53,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:23:53,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:23:53,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:23:53,262 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:23:53,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:23:53,263 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:23:53,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:23:53,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:23:53,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:23:53,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:23:53,265 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:23:53,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:23:53,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:23:53,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:23:53,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:23:53,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:23:53,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:23:53,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:23:53,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:23:53,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:23:53,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:23:53,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:23:53,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:23:53,267 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:23:53,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:23:53,267 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:23:53,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:23:53,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:23:53,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:23:53,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:23:53,531 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:23:53,532 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:23:53,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-29 18:23:54,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:23:54,570 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:23:54,570 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-29 18:23:54,578 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095d89b2f/bfabd94150664f99b8984d9ba6f01c89/FLAG410abd356 [2023-08-29 18:23:54,589 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095d89b2f/bfabd94150664f99b8984d9ba6f01c89 [2023-08-29 18:23:54,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:23:54,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:23:54,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:23:54,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:23:54,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:23:54,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db33342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54, skipping insertion in model container [2023-08-29 18:23:54,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:23:54,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:23:54,827 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2023-08-29 18:23:54,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:23:54,851 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:23:54,868 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2023-08-29 18:23:54,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:23:54,896 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:23:54,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54 WrapperNode [2023-08-29 18:23:54,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:23:54,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:23:54,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:23:54,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:23:54,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,924 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-08-29 18:23:54,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:23:54,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:23:54,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:23:54,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:23:54,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:23:54,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:23:54,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:23:54,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:23:54,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (1/1) ... [2023-08-29 18:23:54,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:23:54,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:23:55,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:23:55,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:23:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:23:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:23:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:23:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:23:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:23:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:23:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:23:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:23:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:23:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:23:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:23:55,037 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:23:55,192 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:23:55,193 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:23:55,365 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:23:55,371 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:23:55,371 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-29 18:23:55,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:23:55 BoogieIcfgContainer [2023-08-29 18:23:55,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:23:55,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:23:55,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:23:55,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:23:55,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:23:54" (1/3) ... [2023-08-29 18:23:55,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e9fb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:23:55, skipping insertion in model container [2023-08-29 18:23:55,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:54" (2/3) ... [2023-08-29 18:23:55,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e9fb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:23:55, skipping insertion in model container [2023-08-29 18:23:55,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:23:55" (3/3) ... [2023-08-29 18:23:55,379 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-08-29 18:23:55,384 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:23:55,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:23:55,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 18:23:55,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:23:55,455 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 18:23:55,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 143 transitions, 294 flow [2023-08-29 18:23:55,552 INFO L130 PetriNetUnfolder]: 9/142 cut-off events. [2023-08-29 18:23:55,554 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:23:55,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 9/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-29 18:23:55,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 143 transitions, 294 flow [2023-08-29 18:23:55,566 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 133 transitions, 269 flow [2023-08-29 18:23:55,568 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:23:55,585 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 133 transitions, 269 flow [2023-08-29 18:23:55,592 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 133 transitions, 269 flow [2023-08-29 18:23:55,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 133 transitions, 269 flow [2023-08-29 18:23:55,624 INFO L130 PetriNetUnfolder]: 9/133 cut-off events. [2023-08-29 18:23:55,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:23:55,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 133 events. 9/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 227 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-29 18:23:55,629 INFO L119 LiptonReduction]: Number of co-enabled transitions 4026 [2023-08-29 18:23:58,276 INFO L134 LiptonReduction]: Checked pairs total: 20613 [2023-08-29 18:23:58,276 INFO L136 LiptonReduction]: Total number of compositions: 83 [2023-08-29 18:23:58,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:23:58,288 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;@560d1f3d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:23:58,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 18:23:58,292 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2023-08-29 18:23:58,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:23:58,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:58,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:58,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:58,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash 558302899, now seen corresponding path program 1 times [2023-08-29 18:23:58,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:58,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111748571] [2023-08-29 18:23:58,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:58,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:58,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:58,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111748571] [2023-08-29 18:23:58,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111748571] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:58,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:58,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137441458] [2023-08-29 18:23:58,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:58,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:58,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 226 [2023-08-29 18:23:58,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:58,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:58,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 226 [2023-08-29 18:23:58,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:59,083 INFO L130 PetriNetUnfolder]: 108/316 cut-off events. [2023-08-29 18:23:59,083 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:23:59,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 316 events. 108/316 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1308 event pairs, 64 based on Foata normal form. 5/316 useless extension candidates. Maximal degree in co-relation 561. Up to 151 conditions per place. [2023-08-29 18:23:59,085 INFO L137 encePairwiseOnDemand]: 206/226 looper letters, 39 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2023-08-29 18:23:59,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 67 transitions, 235 flow [2023-08-29 18:23:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 715 transitions. [2023-08-29 18:23:59,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5272861356932154 [2023-08-29 18:23:59,097 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 715 transitions. [2023-08-29 18:23:59,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 715 transitions. [2023-08-29 18:23:59,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:59,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 715 transitions. [2023-08-29 18:23:59,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,107 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,108 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 125 flow. Second operand 6 states and 715 transitions. [2023-08-29 18:23:59,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 67 transitions, 235 flow [2023-08-29 18:23:59,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 67 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:23:59,111 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-08-29 18:23:59,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2023-08-29 18:23:59,114 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-29 18:23:59,115 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-08-29 18:23:59,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:59,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:59,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:23:59,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:59,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1460847532, now seen corresponding path program 1 times [2023-08-29 18:23:59,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:59,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000486760] [2023-08-29 18:23:59,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:59,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:59,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:59,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000486760] [2023-08-29 18:23:59,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000486760] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:59,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:59,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:59,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507959426] [2023-08-29 18:23:59,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:59,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:59,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:59,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:59,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 226 [2023-08-29 18:23:59,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:59,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 226 [2023-08-29 18:23:59,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:59,604 INFO L130 PetriNetUnfolder]: 249/790 cut-off events. [2023-08-29 18:23:59,604 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-29 18:23:59,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 790 events. 249/790 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4192 event pairs, 48 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 1423. Up to 338 conditions per place. [2023-08-29 18:23:59,608 INFO L137 encePairwiseOnDemand]: 212/226 looper letters, 79 selfloop transitions, 37 changer transitions 0/136 dead transitions. [2023-08-29 18:23:59,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 558 flow [2023-08-29 18:23:59,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:59,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:59,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-08-29 18:23:59,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907079646017699 [2023-08-29 18:23:59,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-08-29 18:23:59,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-08-29 18:23:59,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:59,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-08-29 18:23:59,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,615 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,615 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 801 transitions. [2023-08-29 18:23:59,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 558 flow [2023-08-29 18:23:59,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 136 transitions, 506 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:23:59,617 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-08-29 18:23:59,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2023-08-29 18:23:59,618 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-29 18:23:59,618 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-08-29 18:23:59,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:59,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:59,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:23:59,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:59,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:59,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1511624828, now seen corresponding path program 1 times [2023-08-29 18:23:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508588111] [2023-08-29 18:23:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:59,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:59,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508588111] [2023-08-29 18:23:59,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508588111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:59,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:59,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:59,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535055123] [2023-08-29 18:23:59,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:59,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:59,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:59,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:59,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:59,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 226 [2023-08-29 18:23:59,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:59,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:59,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 226 [2023-08-29 18:23:59,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:00,026 INFO L130 PetriNetUnfolder]: 553/1306 cut-off events. [2023-08-29 18:24:00,026 INFO L131 PetriNetUnfolder]: For 517/532 co-relation queries the response was YES. [2023-08-29 18:24:00,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3183 conditions, 1306 events. 553/1306 cut-off events. For 517/532 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6844 event pairs, 318 based on Foata normal form. 0/1252 useless extension candidates. Maximal degree in co-relation 3170. Up to 1106 conditions per place. [2023-08-29 18:24:00,030 INFO L137 encePairwiseOnDemand]: 212/226 looper letters, 89 selfloop transitions, 44 changer transitions 0/142 dead transitions. [2023-08-29 18:24:00,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 800 flow [2023-08-29 18:24:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:24:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:24:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 689 transitions. [2023-08-29 18:24:00,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081120943952803 [2023-08-29 18:24:00,033 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 689 transitions. [2023-08-29 18:24:00,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 689 transitions. [2023-08-29 18:24:00,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:00,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 689 transitions. [2023-08-29 18:24:00,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,037 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 689 transitions. [2023-08-29 18:24:00,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 800 flow [2023-08-29 18:24:00,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 800 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:24:00,041 INFO L231 Difference]: Finished difference. Result has 73 places, 126 transitions, 656 flow [2023-08-29 18:24:00,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=73, PETRI_TRANSITIONS=126} [2023-08-29 18:24:00,042 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2023-08-29 18:24:00,042 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 126 transitions, 656 flow [2023-08-29 18:24:00,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:00,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:00,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:24:00,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:00,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1147856007, now seen corresponding path program 1 times [2023-08-29 18:24:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:00,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464798458] [2023-08-29 18:24:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:00,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:00,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464798458] [2023-08-29 18:24:00,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464798458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:00,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:00,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:24:00,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276839510] [2023-08-29 18:24:00,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:00,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:24:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:00,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:24:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:24:00,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 226 [2023-08-29 18:24:00,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 126 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:00,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 226 [2023-08-29 18:24:00,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:00,590 INFO L130 PetriNetUnfolder]: 463/1209 cut-off events. [2023-08-29 18:24:00,590 INFO L131 PetriNetUnfolder]: For 780/807 co-relation queries the response was YES. [2023-08-29 18:24:00,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3322 conditions, 1209 events. 463/1209 cut-off events. For 780/807 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6806 event pairs, 92 based on Foata normal form. 2/1172 useless extension candidates. Maximal degree in co-relation 3304. Up to 651 conditions per place. [2023-08-29 18:24:00,597 INFO L137 encePairwiseOnDemand]: 212/226 looper letters, 120 selfloop transitions, 72 changer transitions 12/242 dead transitions. [2023-08-29 18:24:00,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 242 transitions, 1575 flow [2023-08-29 18:24:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:24:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:24:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-08-29 18:24:00,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907079646017699 [2023-08-29 18:24:00,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-08-29 18:24:00,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-08-29 18:24:00,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:00,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-08-29 18:24:00,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,607 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,608 INFO L175 Difference]: Start difference. First operand has 73 places, 126 transitions, 656 flow. Second operand 6 states and 801 transitions. [2023-08-29 18:24:00,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 242 transitions, 1575 flow [2023-08-29 18:24:00,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 242 transitions, 1551 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-29 18:24:00,617 INFO L231 Difference]: Finished difference. Result has 83 places, 193 transitions, 1368 flow [2023-08-29 18:24:00,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1368, PETRI_PLACES=83, PETRI_TRANSITIONS=193} [2023-08-29 18:24:00,619 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2023-08-29 18:24:00,619 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 193 transitions, 1368 flow [2023-08-29 18:24:00,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:00,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:00,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:24:00,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:00,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:00,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1569691547, now seen corresponding path program 1 times [2023-08-29 18:24:00,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:00,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654626200] [2023-08-29 18:24:00,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:00,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:00,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654626200] [2023-08-29 18:24:00,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654626200] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:00,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:00,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:24:00,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203595355] [2023-08-29 18:24:00,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:00,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:24:00,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:00,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:24:00,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:24:00,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 226 [2023-08-29 18:24:00,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 193 transitions, 1368 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:00,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 226 [2023-08-29 18:24:00,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:00,794 INFO L130 PetriNetUnfolder]: 255/865 cut-off events. [2023-08-29 18:24:00,794 INFO L131 PetriNetUnfolder]: For 1001/1032 co-relation queries the response was YES. [2023-08-29 18:24:00,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 865 events. 255/865 cut-off events. For 1001/1032 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5224 event pairs, 25 based on Foata normal form. 9/864 useless extension candidates. Maximal degree in co-relation 2646. Up to 228 conditions per place. [2023-08-29 18:24:00,799 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 53 selfloop transitions, 6 changer transitions 5/171 dead transitions. [2023-08-29 18:24:00,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 171 transitions, 1237 flow [2023-08-29 18:24:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:24:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:24:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-08-29 18:24:00,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6032448377581121 [2023-08-29 18:24:00,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-08-29 18:24:00,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-08-29 18:24:00,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:00,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-08-29 18:24:00,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,803 INFO L175 Difference]: Start difference. First operand has 83 places, 193 transitions, 1368 flow. Second operand 3 states and 409 transitions. [2023-08-29 18:24:00,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 171 transitions, 1237 flow [2023-08-29 18:24:00,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 1163 flow, removed 37 selfloop flow, removed 0 redundant places. [2023-08-29 18:24:00,810 INFO L231 Difference]: Finished difference. Result has 86 places, 150 transitions, 945 flow [2023-08-29 18:24:00,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=86, PETRI_TRANSITIONS=150} [2023-08-29 18:24:00,811 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2023-08-29 18:24:00,811 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 150 transitions, 945 flow [2023-08-29 18:24:00,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:00,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:00,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:00,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:24:00,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:00,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:00,812 INFO L85 PathProgramCache]: Analyzing trace with hash -349093614, now seen corresponding path program 1 times [2023-08-29 18:24:00,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:00,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294848921] [2023-08-29 18:24:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:00,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:01,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:01,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294848921] [2023-08-29 18:24:01,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294848921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:01,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:01,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:24:01,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275477120] [2023-08-29 18:24:01,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:01,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:24:01,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:01,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:24:01,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:24:01,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 226 [2023-08-29 18:24:01,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 150 transitions, 945 flow. Second operand has 11 states, 11 states have (on average 96.0909090909091) internal successors, (1057), 11 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:01,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:01,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 226 [2023-08-29 18:24:01,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:01,673 INFO L130 PetriNetUnfolder]: 489/1252 cut-off events. [2023-08-29 18:24:01,674 INFO L131 PetriNetUnfolder]: For 1355/1357 co-relation queries the response was YES. [2023-08-29 18:24:01,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4260 conditions, 1252 events. 489/1252 cut-off events. For 1355/1357 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7175 event pairs, 229 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 4235. Up to 891 conditions per place. [2023-08-29 18:24:01,679 INFO L137 encePairwiseOnDemand]: 217/226 looper letters, 141 selfloop transitions, 32 changer transitions 0/184 dead transitions. [2023-08-29 18:24:01,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 184 transitions, 1491 flow [2023-08-29 18:24:01,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 18:24:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 18:24:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 916 transitions. [2023-08-29 18:24:01,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503441494591937 [2023-08-29 18:24:01,681 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 916 transitions. [2023-08-29 18:24:01,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 916 transitions. [2023-08-29 18:24:01,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:01,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 916 transitions. [2023-08-29 18:24:01,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 101.77777777777777) internal successors, (916), 9 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:01,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:01,686 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:01,686 INFO L175 Difference]: Start difference. First operand has 86 places, 150 transitions, 945 flow. Second operand 9 states and 916 transitions. [2023-08-29 18:24:01,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 184 transitions, 1491 flow [2023-08-29 18:24:01,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 184 transitions, 1483 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:24:01,693 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 999 flow [2023-08-29 18:24:01,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=999, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2023-08-29 18:24:01,694 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2023-08-29 18:24:01,694 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 999 flow [2023-08-29 18:24:01,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.0909090909091) internal successors, (1057), 11 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:01,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:01,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:01,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:24:01,695 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:01,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1876697562, now seen corresponding path program 1 times [2023-08-29 18:24:01,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:01,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190723358] [2023-08-29 18:24:01,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:01,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:01,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:01,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190723358] [2023-08-29 18:24:01,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190723358] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:01,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:01,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:24:01,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944469743] [2023-08-29 18:24:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:01,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:24:01,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:01,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:24:01,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:24:02,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-29 18:24:02,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 999 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:02,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:02,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-29 18:24:02,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:02,614 INFO L130 PetriNetUnfolder]: 490/1281 cut-off events. [2023-08-29 18:24:02,614 INFO L131 PetriNetUnfolder]: For 1553/1555 co-relation queries the response was YES. [2023-08-29 18:24:02,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4530 conditions, 1281 events. 490/1281 cut-off events. For 1553/1555 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7571 event pairs, 50 based on Foata normal form. 29/1300 useless extension candidates. Maximal degree in co-relation 4503. Up to 400 conditions per place. [2023-08-29 18:24:02,621 INFO L137 encePairwiseOnDemand]: 217/226 looper letters, 210 selfloop transitions, 30 changer transitions 12/274 dead transitions. [2023-08-29 18:24:02,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 274 transitions, 2195 flow [2023-08-29 18:24:02,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:24:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:24:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1233 transitions. [2023-08-29 18:24:02,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5455752212389381 [2023-08-29 18:24:02,623 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1233 transitions. [2023-08-29 18:24:02,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1233 transitions. [2023-08-29 18:24:02,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:02,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1233 transitions. [2023-08-29 18:24:02,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.3) internal successors, (1233), 10 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:02,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:02,630 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:02,631 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 999 flow. Second operand 10 states and 1233 transitions. [2023-08-29 18:24:02,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 274 transitions, 2195 flow [2023-08-29 18:24:02,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 274 transitions, 2059 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-29 18:24:02,649 INFO L231 Difference]: Finished difference. Result has 98 places, 172 transitions, 1213 flow [2023-08-29 18:24:02,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1213, PETRI_PLACES=98, PETRI_TRANSITIONS=172} [2023-08-29 18:24:02,650 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 41 predicate places. [2023-08-29 18:24:02,650 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 172 transitions, 1213 flow [2023-08-29 18:24:02,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:02,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:02,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:02,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:24:02,651 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:02,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:02,652 INFO L85 PathProgramCache]: Analyzing trace with hash -293553252, now seen corresponding path program 2 times [2023-08-29 18:24:02,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:02,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633319021] [2023-08-29 18:24:02,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:02,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:02,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:02,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:02,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633319021] [2023-08-29 18:24:02,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633319021] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:02,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:02,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:24:02,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836781688] [2023-08-29 18:24:02,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:02,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:24:02,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:02,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:24:02,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:24:03,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-29 18:24:03,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 172 transitions, 1213 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:03,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:03,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-29 18:24:03,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:03,826 INFO L130 PetriNetUnfolder]: 507/1353 cut-off events. [2023-08-29 18:24:03,826 INFO L131 PetriNetUnfolder]: For 2663/2674 co-relation queries the response was YES. [2023-08-29 18:24:03,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5323 conditions, 1353 events. 507/1353 cut-off events. For 2663/2674 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8298 event pairs, 63 based on Foata normal form. 17/1355 useless extension candidates. Maximal degree in co-relation 5291. Up to 684 conditions per place. [2023-08-29 18:24:03,834 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 147 selfloop transitions, 69 changer transitions 15/253 dead transitions. [2023-08-29 18:24:03,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 253 transitions, 2016 flow [2023-08-29 18:24:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 18:24:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 18:24:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1136 transitions. [2023-08-29 18:24:03,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5585054080629301 [2023-08-29 18:24:03,837 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1136 transitions. [2023-08-29 18:24:03,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1136 transitions. [2023-08-29 18:24:03,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:03,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1136 transitions. [2023-08-29 18:24:03,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 126.22222222222223) internal successors, (1136), 9 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:03,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:03,841 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:03,842 INFO L175 Difference]: Start difference. First operand has 98 places, 172 transitions, 1213 flow. Second operand 9 states and 1136 transitions. [2023-08-29 18:24:03,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 253 transitions, 2016 flow [2023-08-29 18:24:03,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 253 transitions, 2006 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 18:24:03,854 INFO L231 Difference]: Finished difference. Result has 106 places, 182 transitions, 1541 flow [2023-08-29 18:24:03,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1541, PETRI_PLACES=106, PETRI_TRANSITIONS=182} [2023-08-29 18:24:03,855 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 49 predicate places. [2023-08-29 18:24:03,855 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 182 transitions, 1541 flow [2023-08-29 18:24:03,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:03,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:03,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:03,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:24:03,856 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:03,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:03,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1478916454, now seen corresponding path program 3 times [2023-08-29 18:24:03,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:03,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015116450] [2023-08-29 18:24:03,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:03,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:04,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:04,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015116450] [2023-08-29 18:24:04,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015116450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:04,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:04,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:24:04,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973873100] [2023-08-29 18:24:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:04,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:24:04,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:24:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:24:04,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-29 18:24:04,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 182 transitions, 1541 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:04,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:04,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-29 18:24:04,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:05,133 INFO L130 PetriNetUnfolder]: 570/1553 cut-off events. [2023-08-29 18:24:05,133 INFO L131 PetriNetUnfolder]: For 4596/4607 co-relation queries the response was YES. [2023-08-29 18:24:05,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6663 conditions, 1553 events. 570/1553 cut-off events. For 4596/4607 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9981 event pairs, 58 based on Foata normal form. 21/1557 useless extension candidates. Maximal degree in co-relation 6628. Up to 513 conditions per place. [2023-08-29 18:24:05,141 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 207 selfloop transitions, 98 changer transitions 16/343 dead transitions. [2023-08-29 18:24:05,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 343 transitions, 3226 flow [2023-08-29 18:24:05,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:24:05,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:24:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1270 transitions. [2023-08-29 18:24:05,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5619469026548672 [2023-08-29 18:24:05,144 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1270 transitions. [2023-08-29 18:24:05,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1270 transitions. [2023-08-29 18:24:05,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:05,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1270 transitions. [2023-08-29 18:24:05,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:05,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:05,149 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:05,149 INFO L175 Difference]: Start difference. First operand has 106 places, 182 transitions, 1541 flow. Second operand 10 states and 1270 transitions. [2023-08-29 18:24:05,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 343 transitions, 3226 flow [2023-08-29 18:24:05,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 343 transitions, 3158 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:24:05,167 INFO L231 Difference]: Finished difference. Result has 116 places, 224 transitions, 2341 flow [2023-08-29 18:24:05,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2341, PETRI_PLACES=116, PETRI_TRANSITIONS=224} [2023-08-29 18:24:05,168 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 59 predicate places. [2023-08-29 18:24:05,168 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 224 transitions, 2341 flow [2023-08-29 18:24:05,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:05,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:05,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:05,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:24:05,169 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:05,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:05,169 INFO L85 PathProgramCache]: Analyzing trace with hash 567089318, now seen corresponding path program 4 times [2023-08-29 18:24:05,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:05,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907156464] [2023-08-29 18:24:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:05,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:05,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:05,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907156464] [2023-08-29 18:24:05,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907156464] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:05,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:05,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:24:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170796091] [2023-08-29 18:24:05,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:24:05,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:05,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:24:05,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:24:05,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-29 18:24:05,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 224 transitions, 2341 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:05,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:05,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-29 18:24:05,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:06,410 INFO L130 PetriNetUnfolder]: 610/1703 cut-off events. [2023-08-29 18:24:06,411 INFO L131 PetriNetUnfolder]: For 8237/8250 co-relation queries the response was YES. [2023-08-29 18:24:06,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7921 conditions, 1703 events. 610/1703 cut-off events. For 8237/8250 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11397 event pairs, 71 based on Foata normal form. 21/1708 useless extension candidates. Maximal degree in co-relation 7879. Up to 805 conditions per place. [2023-08-29 18:24:06,421 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 189 selfloop transitions, 106 changer transitions 18/335 dead transitions. [2023-08-29 18:24:06,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 335 transitions, 3584 flow [2023-08-29 18:24:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:24:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:24:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1267 transitions. [2023-08-29 18:24:06,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606194690265487 [2023-08-29 18:24:06,424 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1267 transitions. [2023-08-29 18:24:06,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1267 transitions. [2023-08-29 18:24:06,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:06,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1267 transitions. [2023-08-29 18:24:06,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.7) internal successors, (1267), 10 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:06,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:06,430 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:06,430 INFO L175 Difference]: Start difference. First operand has 116 places, 224 transitions, 2341 flow. Second operand 10 states and 1267 transitions. [2023-08-29 18:24:06,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 335 transitions, 3584 flow [2023-08-29 18:24:06,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 335 transitions, 3535 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-08-29 18:24:06,461 INFO L231 Difference]: Finished difference. Result has 128 places, 244 transitions, 2984 flow [2023-08-29 18:24:06,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=2292, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2984, PETRI_PLACES=128, PETRI_TRANSITIONS=244} [2023-08-29 18:24:06,462 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 71 predicate places. [2023-08-29 18:24:06,463 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 244 transitions, 2984 flow [2023-08-29 18:24:06,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:06,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:06,463 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:06,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:24:06,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:06,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash -452149796, now seen corresponding path program 5 times [2023-08-29 18:24:06,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:06,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759782168] [2023-08-29 18:24:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:06,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759782168] [2023-08-29 18:24:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759782168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:06,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:24:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261813613] [2023-08-29 18:24:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:06,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:24:06,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:24:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:24:07,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-29 18:24:07,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 244 transitions, 2984 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:07,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:07,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-29 18:24:07,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:07,718 INFO L130 PetriNetUnfolder]: 589/1708 cut-off events. [2023-08-29 18:24:07,718 INFO L131 PetriNetUnfolder]: For 10732/10745 co-relation queries the response was YES. [2023-08-29 18:24:07,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8523 conditions, 1708 events. 589/1708 cut-off events. For 10732/10745 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 11759 event pairs, 52 based on Foata normal form. 21/1714 useless extension candidates. Maximal degree in co-relation 8475. Up to 674 conditions per place. [2023-08-29 18:24:07,729 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 212 selfloop transitions, 113 changer transitions 19/366 dead transitions. [2023-08-29 18:24:07,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 366 transitions, 4440 flow [2023-08-29 18:24:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:24:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:24:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1268 transitions. [2023-08-29 18:24:07,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5610619469026549 [2023-08-29 18:24:07,732 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1268 transitions. [2023-08-29 18:24:07,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1268 transitions. [2023-08-29 18:24:07,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:07,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1268 transitions. [2023-08-29 18:24:07,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:07,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:07,737 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:07,737 INFO L175 Difference]: Start difference. First operand has 128 places, 244 transitions, 2984 flow. Second operand 10 states and 1268 transitions. [2023-08-29 18:24:07,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 366 transitions, 4440 flow [2023-08-29 18:24:07,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 366 transitions, 4322 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-08-29 18:24:07,774 INFO L231 Difference]: Finished difference. Result has 132 places, 260 transitions, 3548 flow [2023-08-29 18:24:07,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=2860, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3548, PETRI_PLACES=132, PETRI_TRANSITIONS=260} [2023-08-29 18:24:07,774 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 75 predicate places. [2023-08-29 18:24:07,774 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 260 transitions, 3548 flow [2023-08-29 18:24:07,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:07,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:07,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:07,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:24:07,776 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:07,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:07,776 INFO L85 PathProgramCache]: Analyzing trace with hash 116628082, now seen corresponding path program 1 times [2023-08-29 18:24:07,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:07,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577572157] [2023-08-29 18:24:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:07,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:07,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:07,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577572157] [2023-08-29 18:24:07,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577572157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:07,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:07,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:24:07,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131862713] [2023-08-29 18:24:07,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:07,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:24:07,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:07,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:24:07,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:24:08,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 226 [2023-08-29 18:24:08,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 260 transitions, 3548 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:08,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 226 [2023-08-29 18:24:08,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:08,293 INFO L130 PetriNetUnfolder]: 736/2000 cut-off events. [2023-08-29 18:24:08,293 INFO L131 PetriNetUnfolder]: For 13697/13720 co-relation queries the response was YES. [2023-08-29 18:24:08,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10522 conditions, 2000 events. 736/2000 cut-off events. For 13697/13720 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13574 event pairs, 225 based on Foata normal form. 7/1966 useless extension candidates. Maximal degree in co-relation 10473. Up to 1566 conditions per place. [2023-08-29 18:24:08,307 INFO L137 encePairwiseOnDemand]: 211/226 looper letters, 177 selfloop transitions, 75 changer transitions 95/359 dead transitions. [2023-08-29 18:24:08,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 359 transitions, 5183 flow [2023-08-29 18:24:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:24:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:24:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 690 transitions. [2023-08-29 18:24:08,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5088495575221239 [2023-08-29 18:24:08,310 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 690 transitions. [2023-08-29 18:24:08,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 690 transitions. [2023-08-29 18:24:08,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:08,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 690 transitions. [2023-08-29 18:24:08,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,313 INFO L175 Difference]: Start difference. First operand has 132 places, 260 transitions, 3548 flow. Second operand 6 states and 690 transitions. [2023-08-29 18:24:08,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 359 transitions, 5183 flow [2023-08-29 18:24:08,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 359 transitions, 4960 flow, removed 54 selfloop flow, removed 5 redundant places. [2023-08-29 18:24:08,360 INFO L231 Difference]: Finished difference. Result has 137 places, 248 transitions, 3081 flow [2023-08-29 18:24:08,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=3404, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3081, PETRI_PLACES=137, PETRI_TRANSITIONS=248} [2023-08-29 18:24:08,362 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 80 predicate places. [2023-08-29 18:24:08,362 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 248 transitions, 3081 flow [2023-08-29 18:24:08,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:08,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:08,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:24:08,372 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:08,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:08,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1129733204, now seen corresponding path program 1 times [2023-08-29 18:24:08,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:08,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407930673] [2023-08-29 18:24:08,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:08,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:08,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:08,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407930673] [2023-08-29 18:24:08,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407930673] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:08,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:08,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:24:08,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734959233] [2023-08-29 18:24:08,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:08,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:24:08,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:08,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:24:08,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:24:08,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 226 [2023-08-29 18:24:08,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 248 transitions, 3081 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:08,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 226 [2023-08-29 18:24:08,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:08,583 INFO L130 PetriNetUnfolder]: 289/1154 cut-off events. [2023-08-29 18:24:08,583 INFO L131 PetriNetUnfolder]: For 9561/9623 co-relation queries the response was YES. [2023-08-29 18:24:08,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6231 conditions, 1154 events. 289/1154 cut-off events. For 9561/9623 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8052 event pairs, 7 based on Foata normal form. 23/1174 useless extension candidates. Maximal degree in co-relation 6180. Up to 258 conditions per place. [2023-08-29 18:24:08,589 INFO L137 encePairwiseOnDemand]: 218/226 looper letters, 56 selfloop transitions, 8 changer transitions 7/219 dead transitions. [2023-08-29 18:24:08,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 219 transitions, 2868 flow [2023-08-29 18:24:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:24:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:24:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-08-29 18:24:08,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5929203539823009 [2023-08-29 18:24:08,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-08-29 18:24:08,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-08-29 18:24:08,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:08,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-08-29 18:24:08,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,593 INFO L175 Difference]: Start difference. First operand has 137 places, 248 transitions, 3081 flow. Second operand 3 states and 402 transitions. [2023-08-29 18:24:08,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 219 transitions, 2868 flow [2023-08-29 18:24:08,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 219 transitions, 2401 flow, removed 109 selfloop flow, removed 14 redundant places. [2023-08-29 18:24:08,630 INFO L231 Difference]: Finished difference. Result has 123 places, 193 transitions, 2026 flow [2023-08-29 18:24:08,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2026, PETRI_PLACES=123, PETRI_TRANSITIONS=193} [2023-08-29 18:24:08,631 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-29 18:24:08,631 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 193 transitions, 2026 flow [2023-08-29 18:24:08,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:08,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:24:08,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:08,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:24:08,631 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:24:08,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:24:08,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1225088014, now seen corresponding path program 1 times [2023-08-29 18:24:08,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:24:08,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763071915] [2023-08-29 18:24:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:24:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:24:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:24:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:24:08,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:24:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763071915] [2023-08-29 18:24:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763071915] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:24:08,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:24:08,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 18:24:08,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381661806] [2023-08-29 18:24:08,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:24:08,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 18:24:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:24:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 18:24:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 18:24:09,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 226 [2023-08-29 18:24:09,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 193 transitions, 2026 flow. Second operand has 10 states, 10 states have (on average 97.6) internal successors, (976), 10 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:09,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:24:09,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 226 [2023-08-29 18:24:09,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:24:09,505 INFO L130 PetriNetUnfolder]: 559/1566 cut-off events. [2023-08-29 18:24:09,505 INFO L131 PetriNetUnfolder]: For 12816/12821 co-relation queries the response was YES. [2023-08-29 18:24:09,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8411 conditions, 1566 events. 559/1566 cut-off events. For 12816/12821 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10068 event pairs, 226 based on Foata normal form. 30/1592 useless extension candidates. Maximal degree in co-relation 8367. Up to 1055 conditions per place. [2023-08-29 18:24:09,511 INFO L137 encePairwiseOnDemand]: 218/226 looper letters, 0 selfloop transitions, 0 changer transitions 239/239 dead transitions. [2023-08-29 18:24:09,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 239 transitions, 2903 flow [2023-08-29 18:24:09,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 18:24:09,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 18:24:09,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 917 transitions. [2023-08-29 18:24:09,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45083579154375614 [2023-08-29 18:24:09,514 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 917 transitions. [2023-08-29 18:24:09,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 917 transitions. [2023-08-29 18:24:09,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:24:09,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 917 transitions. [2023-08-29 18:24:09,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 101.88888888888889) internal successors, (917), 9 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:09,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:09,518 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:09,518 INFO L175 Difference]: Start difference. First operand has 123 places, 193 transitions, 2026 flow. Second operand 9 states and 917 transitions. [2023-08-29 18:24:09,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 239 transitions, 2903 flow [2023-08-29 18:24:09,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 239 transitions, 2780 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:24:09,587 INFO L231 Difference]: Finished difference. Result has 123 places, 0 transitions, 0 flow [2023-08-29 18:24:09,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=123, PETRI_TRANSITIONS=0} [2023-08-29 18:24:09,588 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-29 18:24:09,588 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 0 transitions, 0 flow [2023-08-29 18:24:09,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.6) internal successors, (976), 10 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:24:09,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-08-29 18:24:09,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-29 18:24:09,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-08-29 18:24:09,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-29 18:24:09,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-29 18:24:09,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:24:09,592 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:24:09,595 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:24:09,595 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:24:09,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:24:09 BasicIcfg [2023-08-29 18:24:09,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:24:09,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:24:09,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:24:09,598 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:24:09,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:23:55" (3/4) ... [2023-08-29 18:24:09,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:24:09,604 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 18:24:09,607 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-29 18:24:09,608 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-29 18:24:09,608 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:24:09,608 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:24:09,632 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:24:09,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:24:09,632 INFO L158 Benchmark]: Toolchain (without parser) took 15040.42ms. Allocated memory was 71.3MB in the beginning and 333.4MB in the end (delta: 262.1MB). Free memory was 49.4MB in the beginning and 282.1MB in the end (delta: -232.6MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,633 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:24:09,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.40ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 29.1MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.06ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 26.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,633 INFO L158 Benchmark]: Boogie Preprocessor took 53.93ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 26.8MB in the beginning and 81.7MB in the end (delta: -55.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,633 INFO L158 Benchmark]: RCFGBuilder took 393.10ms. Allocated memory is still 102.8MB. Free memory was 81.7MB in the beginning and 63.8MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,634 INFO L158 Benchmark]: TraceAbstraction took 14223.94ms. Allocated memory was 102.8MB in the beginning and 333.4MB in the end (delta: 230.7MB). Free memory was 62.8MB in the beginning and 285.2MB in the end (delta: -222.4MB). Peak memory consumption was 203.1MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,634 INFO L158 Benchmark]: Witness Printer took 33.94ms. Allocated memory is still 333.4MB. Free memory was 285.2MB in the beginning and 282.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:24:09,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.40ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 29.1MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.06ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 26.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.93ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 26.8MB in the beginning and 81.7MB in the end (delta: -55.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 393.10ms. Allocated memory is still 102.8MB. Free memory was 81.7MB in the beginning and 63.8MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14223.94ms. Allocated memory was 102.8MB in the beginning and 333.4MB in the end (delta: 230.7MB). Free memory was 62.8MB in the beginning and 285.2MB in the end (delta: -222.4MB). Peak memory consumption was 203.1MB. Max. memory is 16.1GB. * Witness Printer took 33.94ms. Allocated memory is still 333.4MB. Free memory was 285.2MB in the beginning and 282.1MB in the end (delta: 3.1MB). 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: 2.7s, 128 PlacesBefore, 57 PlacesAfterwards, 133 TransitionsBefore, 61 TransitionsAfterwards, 4026 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 83 TotalNumberOfCompositions, 20613 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3927, independent: 3307, independent conditional: 0, independent unconditional: 3307, dependent: 620, dependent conditional: 0, dependent unconditional: 620, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1816, independent: 1710, independent conditional: 0, independent unconditional: 1710, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3927, independent: 1597, independent conditional: 0, independent unconditional: 1597, dependent: 514, dependent conditional: 0, dependent unconditional: 514, unknown: 1816, unknown conditional: 0, unknown unconditional: 1816] , Statistics on independence cache: Total cache size (in pairs): 258, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: 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, 192 locations, 11 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: 14.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3590 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2701 mSDsluCounter, 1503 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1097 mSDsCounter, 956 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10950 IncrementalHoareTripleChecker+Invalid, 11906 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 956 mSolverCounterUnsat, 406 mSDtfsCounter, 10950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3548occurred in iteration=11, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 3305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:24:09,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE