./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:55:50,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:55:50,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:55:50,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:55:50,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:55:50,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:55:50,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:55:50,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:55:50,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:55:50,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:55:50,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:55:50,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:55:50,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:55:50,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:55:50,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:55:50,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:55:50,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:55:50,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:55:50,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:55:50,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:55:50,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:55:50,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:55:50,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:55:50,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:55:50,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:55:50,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:55:50,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:55:50,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:55:50,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:55:50,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:55:50,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:55:50,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:55:50,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:55:50,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:55:50,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:55:50,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:55:50,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:55:50,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:55:50,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:55:50,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:55:50,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:55:50,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:55:50,961 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:55:50,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:55:50,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:55:50,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:55:50,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:55:50,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:55:50,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:55:50,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:55:50,964 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:55:50,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:55:50,964 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:55:50,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:55:50,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:55:50,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:55:50,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:55:50,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:55:50,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:55:50,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:55:50,966 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:55:50,966 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:55:50,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:55:50,967 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:55:50,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:55:50,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:55:50,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:55:50,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:55:50,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:55:50,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:55:50,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:55:50,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:55:50,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:55:50,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:55:50,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:55:50,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:55:50,970 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:55:50,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:55:50,970 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:55:50,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:55:51,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:55:51,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:55:51,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:55:51,248 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:55:51,248 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:55:51,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-31 20:55:52,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:55:52,723 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:55:52,731 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-31 20:55:52,748 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c7a9d1b/504addab741d4bd2902809ba931f6a5e/FLAG70dfaf11b [2023-08-31 20:55:52,762 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08c7a9d1b/504addab741d4bd2902809ba931f6a5e [2023-08-31 20:55:52,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:55:52,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:55:52,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:55:52,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:55:52,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:55:52,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:55:52" (1/1) ... [2023-08-31 20:55:52,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f4d695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:52, skipping insertion in model container [2023-08-31 20:55:52,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:55:52" (1/1) ... [2023-08-31 20:55:52,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:55:52,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:55:53,048 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_45-escape_racing.i[30176,30189] [2023-08-31 20:55:53,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:55:53,094 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:55:53,128 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_45-escape_racing.i[30176,30189] [2023-08-31 20:55:53,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:55:53,191 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:55:53,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53 WrapperNode [2023-08-31 20:55:53,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:55:53,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:55:53,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:55:53,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:55:53,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,243 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2023-08-31 20:55:53,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:55:53,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:55:53,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:55:53,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:55:53,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:55:53,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:55:53,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:55:53,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:55:53,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (1/1) ... [2023-08-31 20:55:53,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:55:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:55:53,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 20:55:53,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 20:55:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:55:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:55:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:55:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:55:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:55:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:55:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:55:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:55:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:55:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:55:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:55:53,392 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:55:53,565 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:55:53,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:55:53,855 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:55:53,862 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:55:53,862 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-31 20:55:53,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:55:53 BoogieIcfgContainer [2023-08-31 20:55:53,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:55:53,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:55:53,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:55:53,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:55:53,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:55:52" (1/3) ... [2023-08-31 20:55:53,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948be26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:55:53, skipping insertion in model container [2023-08-31 20:55:53,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:55:53" (2/3) ... [2023-08-31 20:55:53,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948be26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:55:53, skipping insertion in model container [2023-08-31 20:55:53,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:55:53" (3/3) ... [2023-08-31 20:55:53,879 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-08-31 20:55:53,886 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:55:53,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:55:53,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-31 20:55:53,894 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:55:53,970 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 20:55:53,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 141 transitions, 290 flow [2023-08-31 20:55:54,043 INFO L130 PetriNetUnfolder]: 9/140 cut-off events. [2023-08-31 20:55:54,043 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 20:55:54,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 9/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 282 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-31 20:55:54,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 141 transitions, 290 flow [2023-08-31 20:55:54,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 131 transitions, 265 flow [2023-08-31 20:55:54,055 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:55:54,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 131 transitions, 265 flow [2023-08-31 20:55:54,064 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 131 transitions, 265 flow [2023-08-31 20:55:54,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 131 transitions, 265 flow [2023-08-31 20:55:54,099 INFO L130 PetriNetUnfolder]: 9/131 cut-off events. [2023-08-31 20:55:54,100 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:55:54,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 9/131 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. 0/116 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-31 20:55:54,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 4026 [2023-08-31 20:55:57,690 INFO L134 LiptonReduction]: Checked pairs total: 20613 [2023-08-31 20:55:57,691 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-08-31 20:55:57,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:55:57,707 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;@36de227b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:55:57,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-31 20:55:57,715 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2023-08-31 20:55:57,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:55:57,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:55:57,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:55:57,716 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)] === [2023-08-31 20:55:57,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:55:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1701940779, now seen corresponding path program 1 times [2023-08-31 20:55:57,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:55:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703022463] [2023-08-31 20:55:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:55:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:55:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:55:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:55:58,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:55:58,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703022463] [2023-08-31 20:55:58,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703022463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:55:58,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:55:58,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:55:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960644713] [2023-08-31 20:55:58,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:55:58,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:55:58,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:55:58,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:55:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:55:58,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 222 [2023-08-31 20:55:58,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:58,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:55:58,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 222 [2023-08-31 20:55:58,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:55:58,718 INFO L130 PetriNetUnfolder]: 108/315 cut-off events. [2023-08-31 20:55:58,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:55:58,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 315 events. 108/315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1338 event pairs, 64 based on Foata normal form. 5/315 useless extension candidates. Maximal degree in co-relation 560. Up to 151 conditions per place. [2023-08-31 20:55:58,724 INFO L137 encePairwiseOnDemand]: 202/222 looper letters, 39 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2023-08-31 20:55:58,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 67 transitions, 235 flow [2023-08-31 20:55:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:55:58,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:55:58,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 703 transitions. [2023-08-31 20:55:58,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2023-08-31 20:55:58,744 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 703 transitions. [2023-08-31 20:55:58,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 703 transitions. [2023-08-31 20:55:58,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:55:58,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 703 transitions. [2023-08-31 20:55:58,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:58,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:58,762 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:58,764 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 125 flow. Second operand 6 states and 703 transitions. [2023-08-31 20:55:58,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 67 transitions, 235 flow [2023-08-31 20:55:58,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 67 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:55:58,769 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-08-31 20:55:58,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-08-31 20:55:58,774 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-31 20:55:58,774 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-08-31 20:55:58,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:58,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:55:58,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:55:58,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:55:58,776 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)] === [2023-08-31 20:55:58,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:55:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1489243381, now seen corresponding path program 1 times [2023-08-31 20:55:58,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:55:58,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105438666] [2023-08-31 20:55:58,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:55:58,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:55:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:55:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:55:59,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:55:59,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105438666] [2023-08-31 20:55:59,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105438666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:55:59,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:55:59,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:55:59,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282196509] [2023-08-31 20:55:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:55:59,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:55:59,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:55:59,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:55:59,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:55:59,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 222 [2023-08-31 20:55:59,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:59,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:55:59,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 222 [2023-08-31 20:55:59,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:55:59,500 INFO L130 PetriNetUnfolder]: 249/789 cut-off events. [2023-08-31 20:55:59,500 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-31 20:55:59,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 789 events. 249/789 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4186 event pairs, 48 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1422. Up to 338 conditions per place. [2023-08-31 20:55:59,504 INFO L137 encePairwiseOnDemand]: 208/222 looper letters, 79 selfloop transitions, 37 changer transitions 0/136 dead transitions. [2023-08-31 20:55:59,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 558 flow [2023-08-31 20:55:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:55:59,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:55:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 789 transitions. [2023-08-31 20:55:59,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5923423423423423 [2023-08-31 20:55:59,514 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 789 transitions. [2023-08-31 20:55:59,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 789 transitions. [2023-08-31 20:55:59,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:55:59,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 789 transitions. [2023-08-31 20:55:59,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:59,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:59,520 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:59,521 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 789 transitions. [2023-08-31 20:55:59,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 558 flow [2023-08-31 20:55:59,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 136 transitions, 506 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:55:59,524 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-08-31 20:55:59,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-08-31 20:55:59,525 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-31 20:55:59,525 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-08-31 20:55:59,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:59,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:55:59,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:55:59,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:55:59,527 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)] === [2023-08-31 20:55:59,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:55:59,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1134763747, now seen corresponding path program 1 times [2023-08-31 20:55:59,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:55:59,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558673805] [2023-08-31 20:55:59,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:55:59,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:55:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:55:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:55:59,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:55:59,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558673805] [2023-08-31 20:55:59,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558673805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:55:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:55:59,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:55:59,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000940401] [2023-08-31 20:55:59,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:55:59,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:55:59,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:55:59,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:55:59,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:55:59,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 222 [2023-08-31 20:55:59,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:55:59,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:55:59,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 222 [2023-08-31 20:55:59,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:00,111 INFO L130 PetriNetUnfolder]: 553/1302 cut-off events. [2023-08-31 20:56:00,111 INFO L131 PetriNetUnfolder]: For 497/514 co-relation queries the response was YES. [2023-08-31 20:56:00,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3179 conditions, 1302 events. 553/1302 cut-off events. For 497/514 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6823 event pairs, 318 based on Foata normal form. 0/1249 useless extension candidates. Maximal degree in co-relation 3166. Up to 1106 conditions per place. [2023-08-31 20:56:00,117 INFO L137 encePairwiseOnDemand]: 208/222 looper letters, 89 selfloop transitions, 44 changer transitions 0/142 dead transitions. [2023-08-31 20:56:00,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 800 flow [2023-08-31 20:56:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:00,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 677 transitions. [2023-08-31 20:56:00,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5082582582582582 [2023-08-31 20:56:00,120 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 677 transitions. [2023-08-31 20:56:00,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 677 transitions. [2023-08-31 20:56:00,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:00,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 677 transitions. [2023-08-31 20:56:00,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,126 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,126 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 677 transitions. [2023-08-31 20:56:00,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 800 flow [2023-08-31 20:56:00,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 800 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:56:00,132 INFO L231 Difference]: Finished difference. Result has 73 places, 126 transitions, 656 flow [2023-08-31 20:56:00,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-08-31 20:56:00,133 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2023-08-31 20:56:00,133 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 126 transitions, 656 flow [2023-08-31 20:56:00,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:00,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:00,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:56:00,134 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)] === [2023-08-31 20:56:00,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:00,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1013952666, now seen corresponding path program 1 times [2023-08-31 20:56:00,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:00,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616539329] [2023-08-31 20:56:00,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:00,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:00,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:00,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616539329] [2023-08-31 20:56:00,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616539329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:00,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:00,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:00,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929802338] [2023-08-31 20:56:00,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:00,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:00,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:00,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:00,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:00,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 222 [2023-08-31 20:56:00,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 126 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 113.83333333333333) internal successors, (683), 6 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:00,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 222 [2023-08-31 20:56:00,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:00,777 INFO L130 PetriNetUnfolder]: 463/1208 cut-off events. [2023-08-31 20:56:00,777 INFO L131 PetriNetUnfolder]: For 776/803 co-relation queries the response was YES. [2023-08-31 20:56:00,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3321 conditions, 1208 events. 463/1208 cut-off events. For 776/803 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6829 event pairs, 92 based on Foata normal form. 2/1172 useless extension candidates. Maximal degree in co-relation 3303. Up to 651 conditions per place. [2023-08-31 20:56:00,785 INFO L137 encePairwiseOnDemand]: 208/222 looper letters, 120 selfloop transitions, 72 changer transitions 12/242 dead transitions. [2023-08-31 20:56:00,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 242 transitions, 1575 flow [2023-08-31 20:56:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:00,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 789 transitions. [2023-08-31 20:56:00,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5923423423423423 [2023-08-31 20:56:00,788 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 789 transitions. [2023-08-31 20:56:00,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 789 transitions. [2023-08-31 20:56:00,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:00,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 789 transitions. [2023-08-31 20:56:00,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,793 INFO L175 Difference]: Start difference. First operand has 73 places, 126 transitions, 656 flow. Second operand 6 states and 789 transitions. [2023-08-31 20:56:00,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 242 transitions, 1575 flow [2023-08-31 20:56:00,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 242 transitions, 1551 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-31 20:56:00,802 INFO L231 Difference]: Finished difference. Result has 83 places, 193 transitions, 1368 flow [2023-08-31 20:56:00,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, 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} [2023-08-31 20:56:00,803 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2023-08-31 20:56:00,804 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 193 transitions, 1368 flow [2023-08-31 20:56:00,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.83333333333333) internal successors, (683), 6 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:00,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:00,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:56:00,805 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)] === [2023-08-31 20:56:00,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:00,805 INFO L85 PathProgramCache]: Analyzing trace with hash -606428831, now seen corresponding path program 1 times [2023-08-31 20:56:00,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:00,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70781326] [2023-08-31 20:56:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:00,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:00,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:00,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70781326] [2023-08-31 20:56:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70781326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:00,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:00,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 20:56:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013638695] [2023-08-31 20:56:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 20:56:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 20:56:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 20:56:00,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 222 [2023-08-31 20:56:00,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 193 transitions, 1368 flow. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:00,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:00,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 222 [2023-08-31 20:56:00,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:01,066 INFO L130 PetriNetUnfolder]: 125/521 cut-off events. [2023-08-31 20:56:01,067 INFO L131 PetriNetUnfolder]: For 618/653 co-relation queries the response was YES. [2023-08-31 20:56:01,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 521 events. 125/521 cut-off events. For 618/653 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2705 event pairs, 14 based on Foata normal form. 14/531 useless extension candidates. Maximal degree in co-relation 1499. Up to 135 conditions per place. [2023-08-31 20:56:01,070 INFO L137 encePairwiseOnDemand]: 214/222 looper letters, 32 selfloop transitions, 7 changer transitions 3/121 dead transitions. [2023-08-31 20:56:01,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 841 flow [2023-08-31 20:56:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 20:56:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 20:56:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2023-08-31 20:56:01,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5698198198198198 [2023-08-31 20:56:01,072 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2023-08-31 20:56:01,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2023-08-31 20:56:01,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:01,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2023-08-31 20:56:01,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:01,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:01,075 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:01,075 INFO L175 Difference]: Start difference. First operand has 83 places, 193 transitions, 1368 flow. Second operand 4 states and 506 transitions. [2023-08-31 20:56:01,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 841 flow [2023-08-31 20:56:01,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 121 transitions, 716 flow, removed 51 selfloop flow, removed 7 redundant places. [2023-08-31 20:56:01,083 INFO L231 Difference]: Finished difference. Result has 79 places, 115 transitions, 642 flow [2023-08-31 20:56:01,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=642, PETRI_PLACES=79, PETRI_TRANSITIONS=115} [2023-08-31 20:56:01,086 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 22 predicate places. [2023-08-31 20:56:01,086 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 115 transitions, 642 flow [2023-08-31 20:56:01,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:01,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:01,086 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] [2023-08-31 20:56:01,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:56:01,087 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)] === [2023-08-31 20:56:01,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash 427062380, now seen corresponding path program 1 times [2023-08-31 20:56:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:01,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216903790] [2023-08-31 20:56:01,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:01,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:01,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:01,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216903790] [2023-08-31 20:56:01,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216903790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:01,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:01,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:56:01,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466388846] [2023-08-31 20:56:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:01,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:56:01,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:56:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:56:01,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 222 [2023-08-31 20:56:01,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 115 transitions, 642 flow. Second operand has 10 states, 10 states have (on average 94.3) internal successors, (943), 10 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:01,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:01,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 222 [2023-08-31 20:56:01,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:02,074 INFO L130 PetriNetUnfolder]: 270/728 cut-off events. [2023-08-31 20:56:02,075 INFO L131 PetriNetUnfolder]: For 829/829 co-relation queries the response was YES. [2023-08-31 20:56:02,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2373 conditions, 728 events. 270/728 cut-off events. For 829/829 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3426 event pairs, 104 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 2351. Up to 534 conditions per place. [2023-08-31 20:56:02,085 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 112 selfloop transitions, 32 changer transitions 0/153 dead transitions. [2023-08-31 20:56:02,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 153 transitions, 1123 flow [2023-08-31 20:56:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:56:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:56:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 902 transitions. [2023-08-31 20:56:02,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45145145145145144 [2023-08-31 20:56:02,088 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 902 transitions. [2023-08-31 20:56:02,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 902 transitions. [2023-08-31 20:56:02,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:02,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 902 transitions. [2023-08-31 20:56:02,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.22222222222223) internal successors, (902), 9 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:02,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:02,094 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:02,094 INFO L175 Difference]: Start difference. First operand has 79 places, 115 transitions, 642 flow. Second operand 9 states and 902 transitions. [2023-08-31 20:56:02,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 153 transitions, 1123 flow [2023-08-31 20:56:02,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 153 transitions, 1102 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 20:56:02,100 INFO L231 Difference]: Finished difference. Result has 83 places, 114 transitions, 684 flow [2023-08-31 20:56:02,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=684, PETRI_PLACES=83, PETRI_TRANSITIONS=114} [2023-08-31 20:56:02,101 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2023-08-31 20:56:02,101 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 114 transitions, 684 flow [2023-08-31 20:56:02,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 94.3) internal successors, (943), 10 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:02,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:02,102 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] [2023-08-31 20:56:02,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:56:02,102 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)] === [2023-08-31 20:56:02,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1988400922, now seen corresponding path program 1 times [2023-08-31 20:56:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:02,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199325752] [2023-08-31 20:56:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:02,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:02,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199325752] [2023-08-31 20:56:02,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199325752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:02,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:02,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:56:02,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348069279] [2023-08-31 20:56:02,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:02,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:56:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:02,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:56:02,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:56:02,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-31 20:56:02,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 114 transitions, 684 flow. Second operand has 10 states, 10 states have (on average 110.6) internal successors, (1106), 10 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:02,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:02,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-31 20:56:02,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:03,314 INFO L130 PetriNetUnfolder]: 331/888 cut-off events. [2023-08-31 20:56:03,314 INFO L131 PetriNetUnfolder]: For 967/967 co-relation queries the response was YES. [2023-08-31 20:56:03,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 888 events. 331/888 cut-off events. For 967/967 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4584 event pairs, 16 based on Foata normal form. 20/904 useless extension candidates. Maximal degree in co-relation 2945. Up to 298 conditions per place. [2023-08-31 20:56:03,319 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 176 selfloop transitions, 30 changer transitions 12/235 dead transitions. [2023-08-31 20:56:03,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 235 transitions, 1776 flow [2023-08-31 20:56:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1213 transitions. [2023-08-31 20:56:03,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5463963963963964 [2023-08-31 20:56:03,323 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1213 transitions. [2023-08-31 20:56:03,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1213 transitions. [2023-08-31 20:56:03,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:03,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1213 transitions. [2023-08-31 20:56:03,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:03,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:03,329 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:03,329 INFO L175 Difference]: Start difference. First operand has 83 places, 114 transitions, 684 flow. Second operand 10 states and 1213 transitions. [2023-08-31 20:56:03,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 235 transitions, 1776 flow [2023-08-31 20:56:03,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 235 transitions, 1640 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-31 20:56:03,338 INFO L231 Difference]: Finished difference. Result has 89 places, 137 transitions, 896 flow [2023-08-31 20:56:03,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=896, PETRI_PLACES=89, PETRI_TRANSITIONS=137} [2023-08-31 20:56:03,339 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 32 predicate places. [2023-08-31 20:56:03,339 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 137 transitions, 896 flow [2023-08-31 20:56:03,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 110.6) internal successors, (1106), 10 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:03,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:03,339 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] [2023-08-31 20:56:03,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:56:03,340 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)] === [2023-08-31 20:56:03,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:03,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1154200964, now seen corresponding path program 2 times [2023-08-31 20:56:03,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:03,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545234052] [2023-08-31 20:56:03,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:03,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:03,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:03,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545234052] [2023-08-31 20:56:03,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545234052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:03,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:03,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:03,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305701010] [2023-08-31 20:56:03,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:03,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:03,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:03,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:04,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-31 20:56:04,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 137 transitions, 896 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:04,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:04,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-31 20:56:04,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:04,705 INFO L130 PetriNetUnfolder]: 348/971 cut-off events. [2023-08-31 20:56:04,705 INFO L131 PetriNetUnfolder]: For 1960/1960 co-relation queries the response was YES. [2023-08-31 20:56:04,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 971 events. 348/971 cut-off events. For 1960/1960 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5340 event pairs, 50 based on Foata normal form. 16/982 useless extension candidates. Maximal degree in co-relation 3647. Up to 475 conditions per place. [2023-08-31 20:56:04,712 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 125 selfloop transitions, 57 changer transitions 15/214 dead transitions. [2023-08-31 20:56:04,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 214 transitions, 1613 flow [2023-08-31 20:56:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:56:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:56:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1118 transitions. [2023-08-31 20:56:04,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5595595595595596 [2023-08-31 20:56:04,716 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1118 transitions. [2023-08-31 20:56:04,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1118 transitions. [2023-08-31 20:56:04,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:04,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1118 transitions. [2023-08-31 20:56:04,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.22222222222223) internal successors, (1118), 9 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:04,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:04,722 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:04,722 INFO L175 Difference]: Start difference. First operand has 89 places, 137 transitions, 896 flow. Second operand 9 states and 1118 transitions. [2023-08-31 20:56:04,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 214 transitions, 1613 flow [2023-08-31 20:56:04,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 214 transitions, 1603 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 20:56:04,738 INFO L231 Difference]: Finished difference. Result has 97 places, 147 transitions, 1175 flow [2023-08-31 20:56:04,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1175, PETRI_PLACES=97, PETRI_TRANSITIONS=147} [2023-08-31 20:56:04,740 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2023-08-31 20:56:04,740 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 147 transitions, 1175 flow [2023-08-31 20:56:04,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:04,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:04,741 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] [2023-08-31 20:56:04,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:56:04,741 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)] === [2023-08-31 20:56:04,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:04,742 INFO L85 PathProgramCache]: Analyzing trace with hash -968877818, now seen corresponding path program 3 times [2023-08-31 20:56:04,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:04,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844426027] [2023-08-31 20:56:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:04,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:05,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:05,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844426027] [2023-08-31 20:56:05,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844426027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:05,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:05,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:05,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675337934] [2023-08-31 20:56:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:05,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:05,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:05,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-31 20:56:05,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 147 transitions, 1175 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:05,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:05,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-31 20:56:05,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:06,238 INFO L130 PetriNetUnfolder]: 411/1173 cut-off events. [2023-08-31 20:56:06,239 INFO L131 PetriNetUnfolder]: For 3635/3635 co-relation queries the response was YES. [2023-08-31 20:56:06,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4868 conditions, 1173 events. 411/1173 cut-off events. For 3635/3635 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6933 event pairs, 42 based on Foata normal form. 20/1186 useless extension candidates. Maximal degree in co-relation 4836. Up to 304 conditions per place. [2023-08-31 20:56:06,248 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 185 selfloop transitions, 83 changer transitions 18/303 dead transitions. [2023-08-31 20:56:06,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 303 transitions, 2706 flow [2023-08-31 20:56:06,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:06,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1250 transitions. [2023-08-31 20:56:06,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630630630630631 [2023-08-31 20:56:06,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1250 transitions. [2023-08-31 20:56:06,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1250 transitions. [2023-08-31 20:56:06,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:06,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1250 transitions. [2023-08-31 20:56:06,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:06,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:06,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:06,260 INFO L175 Difference]: Start difference. First operand has 97 places, 147 transitions, 1175 flow. Second operand 10 states and 1250 transitions. [2023-08-31 20:56:06,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 303 transitions, 2706 flow [2023-08-31 20:56:06,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 303 transitions, 2647 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:56:06,281 INFO L231 Difference]: Finished difference. Result has 107 places, 186 transitions, 1871 flow [2023-08-31 20:56:06,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1129, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1871, PETRI_PLACES=107, PETRI_TRANSITIONS=186} [2023-08-31 20:56:06,282 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 50 predicate places. [2023-08-31 20:56:06,283 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 186 transitions, 1871 flow [2023-08-31 20:56:06,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:06,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:06,283 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] [2023-08-31 20:56:06,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:56:06,284 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)] === [2023-08-31 20:56:06,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:06,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1387659590, now seen corresponding path program 4 times [2023-08-31 20:56:06,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:06,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647024489] [2023-08-31 20:56:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:06,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:06,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:06,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647024489] [2023-08-31 20:56:06,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647024489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:06,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:06,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:06,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242313572] [2023-08-31 20:56:06,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:06,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:06,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:06,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:07,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-31 20:56:07,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 186 transitions, 1871 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:07,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:07,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-31 20:56:07,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:07,755 INFO L130 PetriNetUnfolder]: 451/1322 cut-off events. [2023-08-31 20:56:07,756 INFO L131 PetriNetUnfolder]: For 6795/6795 co-relation queries the response was YES. [2023-08-31 20:56:07,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6035 conditions, 1322 events. 451/1322 cut-off events. For 6795/6795 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8258 event pairs, 59 based on Foata normal form. 20/1336 useless extension candidates. Maximal degree in co-relation 5996. Up to 596 conditions per place. [2023-08-31 20:56:07,766 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 167 selfloop transitions, 91 changer transitions 18/293 dead transitions. [2023-08-31 20:56:07,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 293 transitions, 3022 flow [2023-08-31 20:56:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1247 transitions. [2023-08-31 20:56:07,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5617117117117117 [2023-08-31 20:56:07,770 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1247 transitions. [2023-08-31 20:56:07,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1247 transitions. [2023-08-31 20:56:07,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:07,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1247 transitions. [2023-08-31 20:56:07,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.7) internal successors, (1247), 10 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:07,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:07,777 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:07,777 INFO L175 Difference]: Start difference. First operand has 107 places, 186 transitions, 1871 flow. Second operand 10 states and 1247 transitions. [2023-08-31 20:56:07,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 293 transitions, 3022 flow [2023-08-31 20:56:07,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 293 transitions, 2973 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-08-31 20:56:07,806 INFO L231 Difference]: Finished difference. Result has 119 places, 206 transitions, 2448 flow [2023-08-31 20:56:07,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1822, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2448, PETRI_PLACES=119, PETRI_TRANSITIONS=206} [2023-08-31 20:56:07,807 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 62 predicate places. [2023-08-31 20:56:07,807 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 206 transitions, 2448 flow [2023-08-31 20:56:07,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:07,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:07,808 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] [2023-08-31 20:56:07,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:56:07,808 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)] === [2023-08-31 20:56:07,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash 652243900, now seen corresponding path program 5 times [2023-08-31 20:56:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:07,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189044467] [2023-08-31 20:56:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:07,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:08,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:08,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189044467] [2023-08-31 20:56:08,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189044467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:08,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:08,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:08,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523494283] [2023-08-31 20:56:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:08,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:08,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:08,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:08,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:08,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-31 20:56:08,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 206 transitions, 2448 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:08,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:08,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-31 20:56:08,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:09,233 INFO L130 PetriNetUnfolder]: 430/1324 cut-off events. [2023-08-31 20:56:09,233 INFO L131 PetriNetUnfolder]: For 8726/8726 co-relation queries the response was YES. [2023-08-31 20:56:09,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6485 conditions, 1324 events. 430/1324 cut-off events. For 8726/8726 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8546 event pairs, 35 based on Foata normal form. 20/1339 useless extension candidates. Maximal degree in co-relation 6440. Up to 465 conditions per place. [2023-08-31 20:56:09,244 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 189 selfloop transitions, 98 changer transitions 21/325 dead transitions. [2023-08-31 20:56:09,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 325 transitions, 3806 flow [2023-08-31 20:56:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:09,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1248 transitions. [2023-08-31 20:56:09,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5621621621621622 [2023-08-31 20:56:09,248 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1248 transitions. [2023-08-31 20:56:09,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1248 transitions. [2023-08-31 20:56:09,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:09,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1248 transitions. [2023-08-31 20:56:09,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.8) internal successors, (1248), 10 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,255 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,255 INFO L175 Difference]: Start difference. First operand has 119 places, 206 transitions, 2448 flow. Second operand 10 states and 1248 transitions. [2023-08-31 20:56:09,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 325 transitions, 3806 flow [2023-08-31 20:56:09,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 325 transitions, 3694 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-08-31 20:56:09,292 INFO L231 Difference]: Finished difference. Result has 123 places, 220 transitions, 2954 flow [2023-08-31 20:56:09,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2330, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2954, PETRI_PLACES=123, PETRI_TRANSITIONS=220} [2023-08-31 20:56:09,292 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-31 20:56:09,293 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 220 transitions, 2954 flow [2023-08-31 20:56:09,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:09,294 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] [2023-08-31 20:56:09,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:56:09,294 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)] === [2023-08-31 20:56:09,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:09,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1053192051, now seen corresponding path program 1 times [2023-08-31 20:56:09,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:09,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160426668] [2023-08-31 20:56:09,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:09,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:09,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:09,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160426668] [2023-08-31 20:56:09,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160426668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:09,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:09,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:09,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474114208] [2023-08-31 20:56:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:09,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:09,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:09,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:09,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:09,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 222 [2023-08-31 20:56:09,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 220 transitions, 2954 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:09,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 222 [2023-08-31 20:56:09,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:09,869 INFO L130 PetriNetUnfolder]: 452/1326 cut-off events. [2023-08-31 20:56:09,870 INFO L131 PetriNetUnfolder]: For 9653/9660 co-relation queries the response was YES. [2023-08-31 20:56:09,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 1326 events. 452/1326 cut-off events. For 9653/9660 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8266 event pairs, 150 based on Foata normal form. 29/1351 useless extension candidates. Maximal degree in co-relation 7127. Up to 1069 conditions per place. [2023-08-31 20:56:09,880 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 126 selfloop transitions, 51 changer transitions 92/279 dead transitions. [2023-08-31 20:56:09,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 279 transitions, 4183 flow [2023-08-31 20:56:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 645 transitions. [2023-08-31 20:56:09,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48423423423423423 [2023-08-31 20:56:09,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 645 transitions. [2023-08-31 20:56:09,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 645 transitions. [2023-08-31 20:56:09,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:09,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 645 transitions. [2023-08-31 20:56:09,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,888 INFO L175 Difference]: Start difference. First operand has 123 places, 220 transitions, 2954 flow. Second operand 6 states and 645 transitions. [2023-08-31 20:56:09,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 279 transitions, 4183 flow [2023-08-31 20:56:09,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 279 transitions, 3963 flow, removed 53 selfloop flow, removed 6 redundant places. [2023-08-31 20:56:09,927 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 2233 flow [2023-08-31 20:56:09,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2810, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2233, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2023-08-31 20:56:09,929 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-31 20:56:09,929 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 2233 flow [2023-08-31 20:56:09,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:09,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:09,930 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] [2023-08-31 20:56:09,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:56:09,930 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:09,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash 553714978, now seen corresponding path program 1 times [2023-08-31 20:56:09,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:09,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800401002] [2023-08-31 20:56:09,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:09,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:10,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:10,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800401002] [2023-08-31 20:56:10,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800401002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:10,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:10,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:56:10,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30726132] [2023-08-31 20:56:10,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:10,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:56:10,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:56:10,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:56:10,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 222 [2023-08-31 20:56:10,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 2233 flow. Second operand has 10 states, 10 states have (on average 95.6) internal successors, (956), 10 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:10,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:10,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 222 [2023-08-31 20:56:10,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:10,838 INFO L130 PetriNetUnfolder]: 344/993 cut-off events. [2023-08-31 20:56:10,839 INFO L131 PetriNetUnfolder]: For 8323/8323 co-relation queries the response was YES. [2023-08-31 20:56:10,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5352 conditions, 993 events. 344/993 cut-off events. For 8323/8323 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5495 event pairs, 126 based on Foata normal form. 18/1009 useless extension candidates. Maximal degree in co-relation 5305. Up to 667 conditions per place. [2023-08-31 20:56:10,850 INFO L137 encePairwiseOnDemand]: 214/222 looper letters, 0 selfloop transitions, 0 changer transitions 233/233 dead transitions. [2023-08-31 20:56:10,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 233 transitions, 3095 flow [2023-08-31 20:56:10,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:56:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:56:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 898 transitions. [2023-08-31 20:56:10,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4494494494494494 [2023-08-31 20:56:10,853 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 898 transitions. [2023-08-31 20:56:10,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 898 transitions. [2023-08-31 20:56:10,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:10,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 898 transitions. [2023-08-31 20:56:10,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:10,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:10,865 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:10,865 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 2233 flow. Second operand 9 states and 898 transitions. [2023-08-31 20:56:10,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 233 transitions, 3095 flow [2023-08-31 20:56:10,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 233 transitions, 2692 flow, removed 82 selfloop flow, removed 8 redundant places. [2023-08-31 20:56:10,898 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2023-08-31 20:56:10,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1858, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2023-08-31 20:56:10,900 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 63 predicate places. [2023-08-31 20:56:10,900 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2023-08-31 20:56:10,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 95.6) internal successors, (956), 10 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:10,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-08-31 20:56:10,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-31 20:56:10,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-08-31 20:56:10,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-31 20:56:10,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-08-31 20:56:10,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-31 20:56:10,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-31 20:56:10,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-31 20:56:10,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-31 20:56:10,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-31 20:56:10,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-31 20:56:10,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:56:10,905 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:10,909 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:56:10,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:56:10,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:56:10 BasicIcfg [2023-08-31 20:56:10,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:56:10,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:56:10,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:56:10,913 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:56:10,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:55:53" (3/4) ... [2023-08-31 20:56:10,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:56:10,920 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:56:10,925 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-31 20:56:10,925 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 20:56:10,925 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:56:10,925 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 20:56:10,959 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:56:10,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:56:10,960 INFO L158 Benchmark]: Toolchain (without parser) took 18194.78ms. Allocated memory was 71.3MB in the beginning and 264.2MB in the end (delta: 192.9MB). Free memory was 39.3MB in the beginning and 101.3MB in the end (delta: -62.0MB). Peak memory consumption was 130.5MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,960 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:56:10,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.82ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 34.6MB in the end (delta: 4.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.82ms. Allocated memory is still 71.3MB. Free memory was 34.6MB in the beginning and 32.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,961 INFO L158 Benchmark]: Boogie Preprocessor took 50.97ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 30.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,961 INFO L158 Benchmark]: RCFGBuilder took 575.60ms. Allocated memory is still 71.3MB. Free memory was 30.3MB in the beginning and 33.9MB in the end (delta: -3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,962 INFO L158 Benchmark]: TraceAbstraction took 17039.26ms. Allocated memory was 71.3MB in the beginning and 264.2MB in the end (delta: 192.9MB). Free memory was 33.1MB in the beginning and 104.4MB in the end (delta: -71.2MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,962 INFO L158 Benchmark]: Witness Printer took 46.61ms. Allocated memory is still 264.2MB. Free memory was 104.4MB in the beginning and 101.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:56:10,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.82ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 34.6MB in the end (delta: 4.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.82ms. Allocated memory is still 71.3MB. Free memory was 34.6MB in the beginning and 32.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.97ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 30.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.60ms. Allocated memory is still 71.3MB. Free memory was 30.3MB in the beginning and 33.9MB in the end (delta: -3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 17039.26ms. Allocated memory was 71.3MB in the beginning and 264.2MB in the end (delta: 192.9MB). Free memory was 33.1MB in the beginning and 104.4MB in the end (delta: -71.2MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. * Witness Printer took 46.61ms. Allocated memory is still 264.2MB. Free memory was 104.4MB in the beginning and 101.3MB 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: 3.6s, 126 PlacesBefore, 57 PlacesAfterwards, 131 TransitionsBefore, 61 TransitionsAfterwards, 4026 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 81 TotalNumberOfCompositions, 20613 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4422, independent: 3802, independent conditional: 0, independent unconditional: 3802, 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: 1771, independent: 1688, independent conditional: 0, independent unconditional: 1688, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4422, independent: 2114, independent conditional: 0, independent unconditional: 2114, dependent: 537, dependent conditional: 0, dependent unconditional: 537, unknown: 1771, unknown conditional: 0, unknown unconditional: 1771] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, 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, 190 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: 16.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3454 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2679 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 954 mSDsCounter, 992 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9637 IncrementalHoareTripleChecker+Invalid, 10629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 992 mSolverCounterUnsat, 145 mSDtfsCounter, 9637 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2954occurred in iteration=11, InterpolantAutomatonStates: 101, 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, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 3293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2023-08-31 20:56:10,992 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