./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd --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 19:57:52,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:57:52,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:57:52,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:57:52,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:57:52,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:57:52,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:57:52,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:57:52,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:57:52,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:57:52,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:57:52,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:57:52,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:57:52,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:57:52,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:57:52,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:57:52,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:57:52,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:57:52,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:57:52,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:57:52,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:57:52,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:57:52,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:57:52,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:57:52,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:57:52,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:57:52,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:57:52,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:57:52,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:57:52,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:57:52,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:57:52,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:57:52,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:57:52,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:57:52,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:57:52,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:57:52,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:57:52,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:57:52,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:57:52,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:57:52,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:57:52,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:57:52,246 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:57:52,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:57:52,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:57:52,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:57:52,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:57:52,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:57:52,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:57:52,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:57:52,249 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:57:52,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:57:52,250 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:57:52,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:57:52,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:57:52,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:57:52,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:57:52,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:57:52,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:57:52,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:57:52,252 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:57:52,252 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:57:52,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:57:52,252 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:57:52,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:57:52,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:57:52,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:57:52,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:57:52,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:52,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:57:52,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:57:52,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:57:52,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:57:52,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:57:52,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:57:52,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:57:52,255 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:57:52,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:57:52,255 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:57:52,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:57:52,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:57:52,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:57:52,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:57:52,569 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:57:52,570 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:57:52,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i [2023-08-31 19:57:53,653 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:57:53,876 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:57:53,877 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i [2023-08-31 19:57:53,900 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e6056b2/988fa694a9be49d69b17284a640fd370/FLAGe789f4c0f [2023-08-31 19:57:53,920 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e6056b2/988fa694a9be49d69b17284a640fd370 [2023-08-31 19:57:53,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:57:53,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:57:53,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:53,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:57:53,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:57:53,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:53" (1/1) ... [2023-08-31 19:57:53,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcc5cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:53, skipping insertion in model container [2023-08-31 19:57:53,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:53" (1/1) ... [2023-08-31 19:57:53,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:57:53,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:57:54,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:54,401 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:57:54,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:54,507 WARN L667 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:57:54,513 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:57:54,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54 WrapperNode [2023-08-31 19:57:54,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:54,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:54,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:57:54,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:57:54,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,550 INFO L138 Inliner]: procedures = 265, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-08-31 19:57:54,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:54,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:57:54,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:57:54,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:57:54,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:57:54,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:57:54,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:57:54,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:57:54,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (1/1) ... [2023-08-31 19:57:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:54,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:57:54,606 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 19:57:54,621 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 19:57:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:57:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:57:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:57:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:57:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:57:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:57:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:57:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:57:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:57:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:57:54,650 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 19:57:54,828 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:57:54,829 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:57:54,955 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:57:54,964 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:57:54,965 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:57:54,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:54 BoogieIcfgContainer [2023-08-31 19:57:54,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:57:54,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:57:54,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:57:54,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:57:54,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:57:53" (1/3) ... [2023-08-31 19:57:54,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b80cc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:54, skipping insertion in model container [2023-08-31 19:57:54,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:54" (2/3) ... [2023-08-31 19:57:54,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b80cc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:54, skipping insertion in model container [2023-08-31 19:57:54,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:54" (3/3) ... [2023-08-31 19:57:54,976 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.i [2023-08-31 19:57:54,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:57:54,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:57:54,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-31 19:57:54,991 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:57:55,051 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:57:55,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 161 flow [2023-08-31 19:57:55,140 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2023-08-31 19:57:55,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:55,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:57:55,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 78 transitions, 161 flow [2023-08-31 19:57:55,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:55,153 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:57:55,172 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:55,178 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:55,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 157 flow [2023-08-31 19:57:55,209 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2023-08-31 19:57:55,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:55,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:57:55,211 INFO L119 LiptonReduction]: Number of co-enabled transitions 1288 [2023-08-31 19:57:57,083 INFO L134 LiptonReduction]: Checked pairs total: 4555 [2023-08-31 19:57:57,084 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-31 19:57:57,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:57:57,100 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;@7169293e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:57:57,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-31 19:57:57,103 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-31 19:57:57,103 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:57,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:57,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:57:57,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:57,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:57,108 INFO L85 PathProgramCache]: Analyzing trace with hash 253289166, now seen corresponding path program 1 times [2023-08-31 19:57:57,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:57,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118327698] [2023-08-31 19:57:57,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:57,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:57:57,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:57,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118327698] [2023-08-31 19:57:57,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118327698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:57,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:57,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:57,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194507627] [2023-08-31 19:57:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:57,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:57,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:57,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 128 [2023-08-31 19:57:57,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states 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 19:57:57,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:57,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 128 [2023-08-31 19:57:57,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:57,474 INFO L130 PetriNetUnfolder]: 85/273 cut-off events. [2023-08-31 19:57:57,474 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:57:57,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 273 events. 85/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1386 event pairs, 10 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 470. Up to 101 conditions per place. [2023-08-31 19:57:57,479 INFO L137 encePairwiseOnDemand]: 124/128 looper letters, 28 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2023-08-31 19:57:57,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 145 flow [2023-08-31 19:57:57,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-31 19:57:57,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6536458333333334 [2023-08-31 19:57:57,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-31 19:57:57,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-31 19:57:57,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:57,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-31 19:57:57,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 19:57:57,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:57,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:57,516 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 57 flow. Second operand 3 states and 251 transitions. [2023-08-31 19:57:57,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 145 flow [2023-08-31 19:57:57,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:57,519 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 78 flow [2023-08-31 19:57:57,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-08-31 19:57:57,524 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-31 19:57:57,524 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 78 flow [2023-08-31 19:57:57,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states 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 19:57:57,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:57,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:57:57,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:57:57,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:57,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:57,528 INFO L85 PathProgramCache]: Analyzing trace with hash -737712495, now seen corresponding path program 1 times [2023-08-31 19:57:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:57,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271530700] [2023-08-31 19:57:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:57,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:57,573 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 19:57:57,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:57,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271530700] [2023-08-31 19:57:57,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271530700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:57,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:57,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:57,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050044611] [2023-08-31 19:57:57,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:57,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:57,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:57,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:57,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:57,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2023-08-31 19:57:57,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 19:57:57,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:57,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2023-08-31 19:57:57,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:57,673 INFO L130 PetriNetUnfolder]: 108/319 cut-off events. [2023-08-31 19:57:57,674 INFO L131 PetriNetUnfolder]: For 46/48 co-relation queries the response was YES. [2023-08-31 19:57:57,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 319 events. 108/319 cut-off events. For 46/48 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1625 event pairs, 69 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 606. Up to 190 conditions per place. [2023-08-31 19:57:57,677 INFO L137 encePairwiseOnDemand]: 123/128 looper letters, 24 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2023-08-31 19:57:57,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 39 transitions, 160 flow [2023-08-31 19:57:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2023-08-31 19:57:57,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6223958333333334 [2023-08-31 19:57:57,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 239 transitions. [2023-08-31 19:57:57,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 239 transitions. [2023-08-31 19:57:57,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:57,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 239 transitions. [2023-08-31 19:57:57,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states 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 19:57:57,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:57,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:57,686 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 78 flow. Second operand 3 states and 239 transitions. [2023-08-31 19:57:57,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 39 transitions, 160 flow [2023-08-31 19:57:57,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:57,688 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 108 flow [2023-08-31 19:57:57,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2023-08-31 19:57:57,688 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2023-08-31 19:57:57,689 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 108 flow [2023-08-31 19:57:57,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 19:57:57,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:57,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:57,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:57:57,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:57,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:57,690 INFO L85 PathProgramCache]: Analyzing trace with hash -484871448, now seen corresponding path program 1 times [2023-08-31 19:57:57,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:57,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888688505] [2023-08-31 19:57:57,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:57,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:57,827 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 19:57:57,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:57,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888688505] [2023-08-31 19:57:57,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888688505] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:57,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:57,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:57:57,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314594551] [2023-08-31 19:57:57,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:57,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:57,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:57,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:57,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2023-08-31 19:57:57,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:57:57,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:57,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2023-08-31 19:57:57,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:57,913 INFO L130 PetriNetUnfolder]: 54/191 cut-off events. [2023-08-31 19:57:57,914 INFO L131 PetriNetUnfolder]: For 76/80 co-relation queries the response was YES. [2023-08-31 19:57:57,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 191 events. 54/191 cut-off events. For 76/80 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 875 event pairs, 34 based on Foata normal form. 4/186 useless extension candidates. Maximal degree in co-relation 390. Up to 107 conditions per place. [2023-08-31 19:57:57,917 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 23 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2023-08-31 19:57:57,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 174 flow [2023-08-31 19:57:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2023-08-31 19:57:57,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-08-31 19:57:57,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2023-08-31 19:57:57,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2023-08-31 19:57:57,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:57,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2023-08-31 19:57:57,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 19:57:57,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:57,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:57,929 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 108 flow. Second operand 3 states and 240 transitions. [2023-08-31 19:57:57,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 174 flow [2023-08-31 19:57:57,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 146 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-31 19:57:57,932 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 94 flow [2023-08-31 19:57:57,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-08-31 19:57:57,933 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-08-31 19:57:57,933 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 94 flow [2023-08-31 19:57:57,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:57:57,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:57,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:57,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:57:57,935 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:57,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:57,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1311906282, now seen corresponding path program 1 times [2023-08-31 19:57:57,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:57,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112996426] [2023-08-31 19:57:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:57,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:57,986 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 19:57:57,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:57,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112996426] [2023-08-31 19:57:57,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112996426] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:57,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:57,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369113693] [2023-08-31 19:57:57,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:57,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:57,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:57,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:57,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:58,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2023-08-31 19:57:58,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:57:58,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:58,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2023-08-31 19:57:58,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:58,096 INFO L130 PetriNetUnfolder]: 88/253 cut-off events. [2023-08-31 19:57:58,096 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2023-08-31 19:57:58,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 253 events. 88/253 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1133 event pairs, 32 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 585. Up to 122 conditions per place. [2023-08-31 19:57:58,101 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 30 selfloop transitions, 4 changer transitions 4/43 dead transitions. [2023-08-31 19:57:58,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 43 transitions, 216 flow [2023-08-31 19:57:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:58,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-31 19:57:58,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6380208333333334 [2023-08-31 19:57:58,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-31 19:57:58,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-31 19:57:58,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:58,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-31 19:57:58,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states 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 19:57:58,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:58,115 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:58,115 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 94 flow. Second operand 3 states and 245 transitions. [2023-08-31 19:57:58,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 43 transitions, 216 flow [2023-08-31 19:57:58,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 43 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:57:58,118 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 108 flow [2023-08-31 19:57:58,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-08-31 19:57:58,118 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-31 19:57:58,119 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 108 flow [2023-08-31 19:57:58,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:57:58,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:58,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:58,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:57:58,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:58,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1978498885, now seen corresponding path program 1 times [2023-08-31 19:57:58,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:58,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468096717] [2023-08-31 19:57:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:58,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:58,148 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 19:57:58,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:58,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468096717] [2023-08-31 19:57:58,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468096717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:58,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:58,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:57:58,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221352284] [2023-08-31 19:57:58,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:58,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:58,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:58,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:58,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:58,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 128 [2023-08-31 19:57:58,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:57:58,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:58,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 128 [2023-08-31 19:57:58,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:58,204 INFO L130 PetriNetUnfolder]: 73/225 cut-off events. [2023-08-31 19:57:58,204 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2023-08-31 19:57:58,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 225 events. 73/225 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1007 event pairs, 49 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 599. Up to 173 conditions per place. [2023-08-31 19:57:58,206 INFO L137 encePairwiseOnDemand]: 124/128 looper letters, 23 selfloop transitions, 3 changer transitions 5/37 dead transitions. [2023-08-31 19:57:58,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 194 flow [2023-08-31 19:57:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:58,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2023-08-31 19:57:58,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6067708333333334 [2023-08-31 19:57:58,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2023-08-31 19:57:58,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2023-08-31 19:57:58,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:58,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2023-08-31 19:57:58,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 19:57:58,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:58,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:58,210 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 108 flow. Second operand 3 states and 233 transitions. [2023-08-31 19:57:58,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 194 flow [2023-08-31 19:57:58,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:58,212 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 105 flow [2023-08-31 19:57:58,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-08-31 19:57:58,212 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2023-08-31 19:57:58,212 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 105 flow [2023-08-31 19:57:58,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:57:58,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:58,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:58,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:57:58,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:58,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:58,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1008297957, now seen corresponding path program 1 times [2023-08-31 19:57:58,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:58,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535894312] [2023-08-31 19:57:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:58,298 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 19:57:58,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:58,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535894312] [2023-08-31 19:57:58,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535894312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:58,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:58,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:57:58,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008788528] [2023-08-31 19:57:58,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:58,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:57:58,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:58,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:57:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:57:58,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2023-08-31 19:57:58,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 19:57:58,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:58,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2023-08-31 19:57:58,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:58,372 INFO L130 PetriNetUnfolder]: 46/211 cut-off events. [2023-08-31 19:57:58,372 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-08-31 19:57:58,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 211 events. 46/211 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1050 event pairs, 8 based on Foata normal form. 12/223 useless extension candidates. Maximal degree in co-relation 586. Up to 86 conditions per place. [2023-08-31 19:57:58,373 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 22 selfloop transitions, 6 changer transitions 3/40 dead transitions. [2023-08-31 19:57:58,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 219 flow [2023-08-31 19:57:58,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:57:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:57:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2023-08-31 19:57:58,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2023-08-31 19:57:58,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2023-08-31 19:57:58,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2023-08-31 19:57:58,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:58,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2023-08-31 19:57:58,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 19:57:58,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:58,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:57:58,377 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 105 flow. Second operand 3 states and 240 transitions. [2023-08-31 19:57:58,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 219 flow [2023-08-31 19:57:58,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:57:58,379 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 126 flow [2023-08-31 19:57:58,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-31 19:57:58,380 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2023-08-31 19:57:58,380 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 126 flow [2023-08-31 19:57:58,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 19:57:58,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:57:58,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:57:58,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:57:58,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-31 19:57:58,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:57:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 690603931, now seen corresponding path program 2 times [2023-08-31 19:57:58,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:57:58,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536006725] [2023-08-31 19:57:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:57:58,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:57:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:57:58,502 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 19:57:58,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:57:58,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536006725] [2023-08-31 19:57:58,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536006725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:57:58,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:57:58,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 19:57:58,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018329536] [2023-08-31 19:57:58,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:57:58,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 19:57:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:57:58,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 19:57:58,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 19:57:58,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 128 [2023-08-31 19:57:58,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states 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 19:57:58,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:57:58,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 128 [2023-08-31 19:57:58,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:57:58,600 INFO L130 PetriNetUnfolder]: 18/121 cut-off events. [2023-08-31 19:57:58,600 INFO L131 PetriNetUnfolder]: For 87/89 co-relation queries the response was YES. [2023-08-31 19:57:58,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 121 events. 18/121 cut-off events. For 87/89 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 477 event pairs, 6 based on Foata normal form. 8/129 useless extension candidates. Maximal degree in co-relation 352. Up to 64 conditions per place. [2023-08-31 19:57:58,601 INFO L137 encePairwiseOnDemand]: 123/128 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-31 19:57:58,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 30 transitions, 168 flow [2023-08-31 19:57:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 19:57:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 19:57:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2023-08-31 19:57:58,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5859375 [2023-08-31 19:57:58,618 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 300 transitions. [2023-08-31 19:57:58,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 300 transitions. [2023-08-31 19:57:58,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:57:58,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 300 transitions. [2023-08-31 19:57:58,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 19:57:58,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states 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 19:57:58,620 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states 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 19:57:58,620 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 126 flow. Second operand 4 states and 300 transitions. [2023-08-31 19:57:58,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 30 transitions, 168 flow [2023-08-31 19:57:58,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 154 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-31 19:57:58,622 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-31 19:57:58,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-31 19:57:58,623 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-31 19:57:58,623 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-31 19:57:58,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 0 states have call successors, (0), 0 states 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 19:57:58,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-31 19:57:58,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-31 19:57:58,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2023-08-31 19:57:58,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-31 19:57:58,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-08-31 19:57:58,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-31 19:57:58,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-31 19:57:58,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-31 19:57:58,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-31 19:57:58,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:57:58,638 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-31 19:57:58,642 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:57:58,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:57:58,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:57:58 BasicIcfg [2023-08-31 19:57:58,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:57:58,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:57:58,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:57:58,646 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:57:58,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:54" (3/4) ... [2023-08-31 19:57:58,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:57:58,652 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 19:57:58,671 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-31 19:57:58,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 19:57:58,672 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 19:57:58,699 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:57:58,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:57:58,700 INFO L158 Benchmark]: Toolchain (without parser) took 4776.20ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 62.7MB in the beginning and 32.4MB in the end (delta: 30.4MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2023-08-31 19:57:58,700 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 40.9MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:58,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.74ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 58.5MB in the end (delta: 3.9MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2023-08-31 19:57:58,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.34ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 56.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:58,701 INFO L158 Benchmark]: Boogie Preprocessor took 19.09ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 54.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:57:58,702 INFO L158 Benchmark]: RCFGBuilder took 399.38ms. Allocated memory is still 83.9MB. Free memory was 54.8MB in the beginning and 41.7MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-31 19:57:58,702 INFO L158 Benchmark]: TraceAbstraction took 3673.82ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 40.9MB in the beginning and 34.5MB in the end (delta: 6.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-08-31 19:57:58,703 INFO L158 Benchmark]: Witness Printer took 53.92ms. Allocated memory is still 102.8MB. Free memory was 34.5MB in the beginning and 32.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:57:58,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 40.9MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.74ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 58.5MB in the end (delta: 3.9MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.34ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 56.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.09ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 54.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.38ms. Allocated memory is still 83.9MB. Free memory was 54.8MB in the beginning and 41.7MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3673.82ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 40.9MB in the beginning and 34.5MB in the end (delta: 6.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 53.92ms. Allocated memory is still 102.8MB. Free memory was 34.5MB in the beginning and 32.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 81 PlacesBefore, 31 PlacesAfterwards, 77 TransitionsBefore, 27 TransitionsAfterwards, 1288 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 4555 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1611, independent: 1324, independent conditional: 0, independent unconditional: 1324, dependent: 287, dependent conditional: 0, dependent unconditional: 287, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 627, independent: 580, independent conditional: 0, independent unconditional: 580, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1611, independent: 744, independent conditional: 0, independent unconditional: 744, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 627, unknown conditional: 0, unknown unconditional: 627] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 941]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 944]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: 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, 109 locations, 9 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: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 10 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=6, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 19:57:58,723 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