./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.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 bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:52:57,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:52:57,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:52:57,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:52:57,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:52:57,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:52:57,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:52:57,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:52:57,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:52:57,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:52:57,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:52:57,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:52:57,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:52:57,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:52:57,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:52:57,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:52:57,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:52:57,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:52:57,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:52:57,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:52:57,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:52:57,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:52:57,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:52:57,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:52:57,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:52:57,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:52:57,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:52:57,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:52:57,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:52:57,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:52:57,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:52:57,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:52:57,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:52:57,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:52:57,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:52:57,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:52:57,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:52:57,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:52:57,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:52:57,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:52:57,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:52:57,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:52:57,379 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:52:57,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:52:57,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:52:57,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:52:57,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:52:57,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:52:57,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:52:57,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:52:57,382 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:52:57,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:52:57,382 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:52:57,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:52:57,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:52:57,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:52:57,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:52:57,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:52:57,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:52:57,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:52:57,384 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:52:57,384 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:52:57,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:52:57,384 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:52:57,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:52:57,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:52:57,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:52:57,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:52:57,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:57,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:52:57,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:52:57,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:52:57,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:52:57,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:52:57,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:52:57,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:52:57,387 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:52:57,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:52:57,388 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:52:57,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:52:57,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:52:57,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:52:57,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:52:57,732 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:52:57,733 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:52:57,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2023-08-28 17:52:58,934 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:52:59,223 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:52:59,223 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2023-08-28 17:52:59,245 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274205d8f/f1b15dd74d994fcda177db77b92e690e/FLAGba99c3fe1 [2023-08-28 17:52:59,256 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274205d8f/f1b15dd74d994fcda177db77b92e690e [2023-08-28 17:52:59,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:52:59,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:52:59,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:59,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:52:59,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:52:59,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@feaa9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59, skipping insertion in model container [2023-08-28 17:52:59,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:52:59,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:52:59,451 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:52:59,595 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2023-08-28 17:52:59,602 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2023-08-28 17:52:59,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:59,625 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:52:59,648 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-28 17:52:59,668 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2023-08-28 17:52:59,684 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2023-08-28 17:52:59,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:59,730 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:59,731 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:59,731 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-28 17:52:59,737 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:52:59,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59 WrapperNode [2023-08-28 17:52:59,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:59,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:59,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:52:59,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:52:59,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,797 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-08-28 17:52:59,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:59,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:52:59,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:52:59,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:52:59,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:52:59,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:52:59,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:52:59,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:52:59,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (1/1) ... [2023-08-28 17:52:59,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:59,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:52:59,871 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) [2023-08-28 17:52:59,885 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 [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-28 17:52:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 17:52:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:52:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:52:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:52:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:52:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-28 17:52:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:52:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:52:59,908 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:53:00,007 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:53:00,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:53:00,346 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:53:00,456 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:53:00,458 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-28 17:53:00,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:00 BoogieIcfgContainer [2023-08-28 17:53:00,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:53:00,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:53:00,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:53:00,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:53:00,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:52:59" (1/3) ... [2023-08-28 17:53:00,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f1a909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:53:00, skipping insertion in model container [2023-08-28 17:53:00,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:59" (2/3) ... [2023-08-28 17:53:00,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f1a909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:53:00, skipping insertion in model container [2023-08-28 17:53:00,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:00" (3/3) ... [2023-08-28 17:53:00,469 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2023-08-28 17:53:00,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:53:00,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:53:00,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-28 17:53:00,485 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:53:00,583 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:53:00,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 167 transitions, 350 flow [2023-08-28 17:53:00,696 INFO L130 PetriNetUnfolder]: 20/165 cut-off events. [2023-08-28 17:53:00,696 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:53:00,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 165 events. 20/165 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 348 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 133. Up to 3 conditions per place. [2023-08-28 17:53:00,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 167 transitions, 350 flow [2023-08-28 17:53:00,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 156 transitions, 321 flow [2023-08-28 17:53:00,716 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:53:00,734 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 156 transitions, 321 flow [2023-08-28 17:53:00,741 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 156 transitions, 321 flow [2023-08-28 17:53:00,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 156 transitions, 321 flow [2023-08-28 17:53:00,791 INFO L130 PetriNetUnfolder]: 20/156 cut-off events. [2023-08-28 17:53:00,791 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:53:00,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 156 events. 20/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 353 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 133. Up to 3 conditions per place. [2023-08-28 17:53:00,802 INFO L119 LiptonReduction]: Number of co-enabled transitions 10260 [2023-08-28 17:53:02,955 INFO L134 LiptonReduction]: Checked pairs total: 24524 [2023-08-28 17:53:02,956 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-28 17:53:02,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:53:02,986 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;@139ad70f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:53:02,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-08-28 17:53:02,988 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-28 17:53:02,989 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:53:02,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:02,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-28 17:53:02,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:02,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:02,994 INFO L85 PathProgramCache]: Analyzing trace with hash 852394, now seen corresponding path program 1 times [2023-08-28 17:53:03,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:03,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695244795] [2023-08-28 17:53:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:03,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695244795] [2023-08-28 17:53:03,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695244795] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:03,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:03,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 17:53:03,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265173247] [2023-08-28 17:53:03,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:53:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:03,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:53:03,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:53:03,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 278 [2023-08-28 17:53:03,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 85 transitions, 179 flow. Second operand has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:03,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 278 [2023-08-28 17:53:03,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:03,485 INFO L130 PetriNetUnfolder]: 1105/1882 cut-off events. [2023-08-28 17:53:03,486 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-28 17:53:03,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3618 conditions, 1882 events. 1105/1882 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 8495 event pairs, 765 based on Foata normal form. 0/1438 useless extension candidates. Maximal degree in co-relation 3448. Up to 1683 conditions per place. [2023-08-28 17:53:03,496 INFO L137 encePairwiseOnDemand]: 248/278 looper letters, 47 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2023-08-28 17:53:03,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 55 transitions, 213 flow [2023-08-28 17:53:03,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:53:03,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:53:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 271 transitions. [2023-08-28 17:53:03,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48741007194244607 [2023-08-28 17:53:03,528 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 271 transitions. [2023-08-28 17:53:03,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 271 transitions. [2023-08-28 17:53:03,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:03,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 271 transitions. [2023-08-28 17:53:03,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,538 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,540 INFO L175 Difference]: Start difference. First operand has 82 places, 85 transitions, 179 flow. Second operand 2 states and 271 transitions. [2023-08-28 17:53:03,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 55 transitions, 213 flow [2023-08-28 17:53:03,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-28 17:53:03,545 INFO L231 Difference]: Finished difference. Result has 50 places, 55 transitions, 114 flow [2023-08-28 17:53:03,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=50, PETRI_TRANSITIONS=55} [2023-08-28 17:53:03,549 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -32 predicate places. [2023-08-28 17:53:03,550 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 55 transitions, 114 flow [2023-08-28 17:53:03,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:03,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:03,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:53:03,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:03,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:03,552 INFO L85 PathProgramCache]: Analyzing trace with hash -815700060, now seen corresponding path program 1 times [2023-08-28 17:53:03,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:03,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395090111] [2023-08-28 17:53:03,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:03,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:03,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:03,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395090111] [2023-08-28 17:53:03,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395090111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:03,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:03,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:03,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729826644] [2023-08-28 17:53:03,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:03,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:03,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:03,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 278 [2023-08-28 17:53:03,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:03,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 278 [2023-08-28 17:53:03,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:03,854 INFO L130 PetriNetUnfolder]: 1208/2013 cut-off events. [2023-08-28 17:53:03,854 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:53:03,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3900 conditions, 2013 events. 1208/2013 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8911 event pairs, 738 based on Foata normal form. 0/1563 useless extension candidates. Maximal degree in co-relation 3897. Up to 1664 conditions per place. [2023-08-28 17:53:03,863 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 69 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2023-08-28 17:53:03,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 80 transitions, 314 flow [2023-08-28 17:53:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:03,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-08-28 17:53:03,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41007194244604317 [2023-08-28 17:53:03,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-08-28 17:53:03,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-08-28 17:53:03,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:03,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-08-28 17:53:03,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,871 INFO L175 Difference]: Start difference. First operand has 50 places, 55 transitions, 114 flow. Second operand 3 states and 342 transitions. [2023-08-28 17:53:03,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 80 transitions, 314 flow [2023-08-28 17:53:03,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 80 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:53:03,873 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 152 flow [2023-08-28 17:53:03,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2023-08-28 17:53:03,873 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -28 predicate places. [2023-08-28 17:53:03,874 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 152 flow [2023-08-28 17:53:03,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:03,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:03,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:53:03,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:03,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -645561612, now seen corresponding path program 1 times [2023-08-28 17:53:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:03,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190008269] [2023-08-28 17:53:03,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:03,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:03,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:03,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190008269] [2023-08-28 17:53:03,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190008269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:03,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:03,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:03,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126801341] [2023-08-28 17:53:03,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:03,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:03,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:03,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 278 [2023-08-28 17:53:03,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:03,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:03,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 278 [2023-08-28 17:53:03,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:04,153 INFO L130 PetriNetUnfolder]: 1251/2068 cut-off events. [2023-08-28 17:53:04,154 INFO L131 PetriNetUnfolder]: For 179/193 co-relation queries the response was YES. [2023-08-28 17:53:04,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4346 conditions, 2068 events. 1251/2068 cut-off events. For 179/193 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9065 event pairs, 748 based on Foata normal form. 0/1630 useless extension candidates. Maximal degree in co-relation 4341. Up to 1724 conditions per place. [2023-08-28 17:53:04,163 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 71 selfloop transitions, 8 changer transitions 0/86 dead transitions. [2023-08-28 17:53:04,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 86 transitions, 381 flow [2023-08-28 17:53:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-08-28 17:53:04,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41007194244604317 [2023-08-28 17:53:04,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-08-28 17:53:04,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-08-28 17:53:04,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:04,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-08-28 17:53:04,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,169 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 152 flow. Second operand 3 states and 342 transitions. [2023-08-28 17:53:04,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 86 transitions, 381 flow [2023-08-28 17:53:04,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 86 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:04,173 INFO L231 Difference]: Finished difference. Result has 56 places, 65 transitions, 210 flow [2023-08-28 17:53:04,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=56, PETRI_TRANSITIONS=65} [2023-08-28 17:53:04,174 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -26 predicate places. [2023-08-28 17:53:04,175 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 65 transitions, 210 flow [2023-08-28 17:53:04,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:04,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:04,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:53:04,176 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:04,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:04,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2091282543, now seen corresponding path program 1 times [2023-08-28 17:53:04,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:04,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78970752] [2023-08-28 17:53:04,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:04,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:04,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78970752] [2023-08-28 17:53:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78970752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:04,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:04,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486082407] [2023-08-28 17:53:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:04,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:04,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:04,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 278 [2023-08-28 17:53:04,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 65 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:04,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 278 [2023-08-28 17:53:04,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:04,467 INFO L130 PetriNetUnfolder]: 1359/2190 cut-off events. [2023-08-28 17:53:04,468 INFO L131 PetriNetUnfolder]: For 762/822 co-relation queries the response was YES. [2023-08-28 17:53:04,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5031 conditions, 2190 events. 1359/2190 cut-off events. For 762/822 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9222 event pairs, 472 based on Foata normal form. 14/1810 useless extension candidates. Maximal degree in co-relation 5025. Up to 1117 conditions per place. [2023-08-28 17:53:04,476 INFO L137 encePairwiseOnDemand]: 270/278 looper letters, 82 selfloop transitions, 8 changer transitions 16/112 dead transitions. [2023-08-28 17:53:04,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 112 transitions, 539 flow [2023-08-28 17:53:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-08-28 17:53:04,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44004796163069543 [2023-08-28 17:53:04,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-08-28 17:53:04,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-08-28 17:53:04,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:04,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-08-28 17:53:04,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,483 INFO L175 Difference]: Start difference. First operand has 56 places, 65 transitions, 210 flow. Second operand 3 states and 367 transitions. [2023-08-28 17:53:04,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 112 transitions, 539 flow [2023-08-28 17:53:04,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 112 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:04,488 INFO L231 Difference]: Finished difference. Result has 58 places, 65 transitions, 238 flow [2023-08-28 17:53:04,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=58, PETRI_TRANSITIONS=65} [2023-08-28 17:53:04,489 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -24 predicate places. [2023-08-28 17:53:04,489 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 65 transitions, 238 flow [2023-08-28 17:53:04,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:04,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:04,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:53:04,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:04,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash -56495155, now seen corresponding path program 1 times [2023-08-28 17:53:04,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985542116] [2023-08-28 17:53:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:04,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:04,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:04,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985542116] [2023-08-28 17:53:04,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985542116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:04,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:04,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-28 17:53:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576273848] [2023-08-28 17:53:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:04,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:04,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:04,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 278 [2023-08-28 17:53:04,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:04,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 278 [2023-08-28 17:53:04,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:04,836 INFO L130 PetriNetUnfolder]: 1916/3259 cut-off events. [2023-08-28 17:53:04,837 INFO L131 PetriNetUnfolder]: For 2084/2126 co-relation queries the response was YES. [2023-08-28 17:53:04,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7808 conditions, 3259 events. 1916/3259 cut-off events. For 2084/2126 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 16615 event pairs, 626 based on Foata normal form. 0/2673 useless extension candidates. Maximal degree in co-relation 7801. Up to 1632 conditions per place. [2023-08-28 17:53:04,850 INFO L137 encePairwiseOnDemand]: 271/278 looper letters, 98 selfloop transitions, 6 changer transitions 0/114 dead transitions. [2023-08-28 17:53:04,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 114 transitions, 631 flow [2023-08-28 17:53:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:04,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2023-08-28 17:53:04,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4520383693045564 [2023-08-28 17:53:04,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2023-08-28 17:53:04,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2023-08-28 17:53:04,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:04,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2023-08-28 17:53:04,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,857 INFO L175 Difference]: Start difference. First operand has 58 places, 65 transitions, 238 flow. Second operand 3 states and 377 transitions. [2023-08-28 17:53:04,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 114 transitions, 631 flow [2023-08-28 17:53:04,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 599 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:04,864 INFO L231 Difference]: Finished difference. Result has 60 places, 70 transitions, 268 flow [2023-08-28 17:53:04,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=60, PETRI_TRANSITIONS=70} [2023-08-28 17:53:04,865 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -22 predicate places. [2023-08-28 17:53:04,865 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 70 transitions, 268 flow [2023-08-28 17:53:04,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:04,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:04,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:53:04,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:04,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:04,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1023655501, now seen corresponding path program 2 times [2023-08-28 17:53:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:04,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313876322] [2023-08-28 17:53:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:04,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:04,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:04,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313876322] [2023-08-28 17:53:04,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313876322] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:04,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:04,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 17:53:04,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106579104] [2023-08-28 17:53:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:04,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-28 17:53:04,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:04,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-28 17:53:04,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-28 17:53:04,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 278 [2023-08-28 17:53:04,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 70 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:04,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:04,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 278 [2023-08-28 17:53:04,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:05,285 INFO L130 PetriNetUnfolder]: 1842/3059 cut-off events. [2023-08-28 17:53:05,285 INFO L131 PetriNetUnfolder]: For 1368/1400 co-relation queries the response was YES. [2023-08-28 17:53:05,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7367 conditions, 3059 events. 1842/3059 cut-off events. For 1368/1400 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 15026 event pairs, 434 based on Foata normal form. 20/2641 useless extension candidates. Maximal degree in co-relation 7359. Up to 1074 conditions per place. [2023-08-28 17:53:05,296 INFO L137 encePairwiseOnDemand]: 261/278 looper letters, 79 selfloop transitions, 21 changer transitions 29/139 dead transitions. [2023-08-28 17:53:05,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 139 transitions, 719 flow [2023-08-28 17:53:05,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 17:53:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 17:53:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 575 transitions. [2023-08-28 17:53:05,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4136690647482014 [2023-08-28 17:53:05,299 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 575 transitions. [2023-08-28 17:53:05,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 575 transitions. [2023-08-28 17:53:05,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:05,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 575 transitions. [2023-08-28 17:53:05,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,303 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,304 INFO L175 Difference]: Start difference. First operand has 60 places, 70 transitions, 268 flow. Second operand 5 states and 575 transitions. [2023-08-28 17:53:05,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 139 transitions, 719 flow [2023-08-28 17:53:05,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 139 transitions, 707 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:05,308 INFO L231 Difference]: Finished difference. Result has 66 places, 84 transitions, 416 flow [2023-08-28 17:53:05,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=416, PETRI_PLACES=66, PETRI_TRANSITIONS=84} [2023-08-28 17:53:05,309 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2023-08-28 17:53:05,309 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 84 transitions, 416 flow [2023-08-28 17:53:05,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:05,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:05,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:53:05,310 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-28 17:53:05,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash 7842867, now seen corresponding path program 3 times [2023-08-28 17:53:05,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:05,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744423879] [2023-08-28 17:53:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:05,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:05,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744423879] [2023-08-28 17:53:05,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744423879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:05,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:05,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 17:53:05,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121408924] [2023-08-28 17:53:05,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:05,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-28 17:53:05,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:05,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-28 17:53:05,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-28 17:53:05,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 278 [2023-08-28 17:53:05,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 84 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:05,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 278 [2023-08-28 17:53:05,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:05,678 INFO L130 PetriNetUnfolder]: 1514/2503 cut-off events. [2023-08-28 17:53:05,679 INFO L131 PetriNetUnfolder]: For 2317/2337 co-relation queries the response was YES. [2023-08-28 17:53:05,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7354 conditions, 2503 events. 1514/2503 cut-off events. For 2317/2337 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 11570 event pairs, 308 based on Foata normal form. 26/2337 useless extension candidates. Maximal degree in co-relation 7343. Up to 884 conditions per place. [2023-08-28 17:53:05,688 INFO L137 encePairwiseOnDemand]: 261/278 looper letters, 0 selfloop transitions, 0 changer transitions 153/153 dead transitions. [2023-08-28 17:53:05,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 153 transitions, 1011 flow [2023-08-28 17:53:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 17:53:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 17:53:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2023-08-28 17:53:05,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4093525179856115 [2023-08-28 17:53:05,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2023-08-28 17:53:05,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2023-08-28 17:53:05,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:05,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2023-08-28 17:53:05,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,701 INFO L175 Difference]: Start difference. First operand has 66 places, 84 transitions, 416 flow. Second operand 5 states and 569 transitions. [2023-08-28 17:53:05,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 153 transitions, 1011 flow [2023-08-28 17:53:05,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 153 transitions, 955 flow, removed 17 selfloop flow, removed 4 redundant places. [2023-08-28 17:53:05,711 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2023-08-28 17:53:05,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2023-08-28 17:53:05,712 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -20 predicate places. [2023-08-28 17:53:05,713 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2023-08-28 17:53:05,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:05,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (67 of 68 remaining) [2023-08-28 17:53:05,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2023-08-28 17:53:05,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2023-08-28 17:53:05,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2023-08-28 17:53:05,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2023-08-28 17:53:05,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (62 of 68 remaining) [2023-08-28 17:53:05,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2023-08-28 17:53:05,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2023-08-28 17:53:05,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2023-08-28 17:53:05,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2023-08-28 17:53:05,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2023-08-28 17:53:05,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2023-08-28 17:53:05,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2023-08-28 17:53:05,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2023-08-28 17:53:05,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2023-08-28 17:53:05,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2023-08-28 17:53:05,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2023-08-28 17:53:05,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2023-08-28 17:53:05,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2023-08-28 17:53:05,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2023-08-28 17:53:05,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2023-08-28 17:53:05,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 68 remaining) [2023-08-28 17:53:05,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2023-08-28 17:53:05,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2023-08-28 17:53:05,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2023-08-28 17:53:05,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2023-08-28 17:53:05,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2023-08-28 17:53:05,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2023-08-28 17:53:05,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2023-08-28 17:53:05,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2023-08-28 17:53:05,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2023-08-28 17:53:05,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2023-08-28 17:53:05,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2023-08-28 17:53:05,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2023-08-28 17:53:05,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 68 remaining) [2023-08-28 17:53:05,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 68 remaining) [2023-08-28 17:53:05,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (31 of 68 remaining) [2023-08-28 17:53:05,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2023-08-28 17:53:05,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2023-08-28 17:53:05,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2023-08-28 17:53:05,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2023-08-28 17:53:05,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (26 of 68 remaining) [2023-08-28 17:53:05,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (25 of 68 remaining) [2023-08-28 17:53:05,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 68 remaining) [2023-08-28 17:53:05,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2023-08-28 17:53:05,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2023-08-28 17:53:05,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2023-08-28 17:53:05,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2023-08-28 17:53:05,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2023-08-28 17:53:05,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2023-08-28 17:53:05,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2023-08-28 17:53:05,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2023-08-28 17:53:05,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2023-08-28 17:53:05,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2023-08-28 17:53:05,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2023-08-28 17:53:05,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2023-08-28 17:53:05,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 68 remaining) [2023-08-28 17:53:05,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2023-08-28 17:53:05,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2023-08-28 17:53:05,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2023-08-28 17:53:05,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2023-08-28 17:53:05,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2023-08-28 17:53:05,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2023-08-28 17:53:05,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2023-08-28 17:53:05,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2023-08-28 17:53:05,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2023-08-28 17:53:05,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2023-08-28 17:53:05,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2023-08-28 17:53:05,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:53:05,740 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-08-28 17:53:05,746 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:53:05,746 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:53:05,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:53:05 BasicIcfg [2023-08-28 17:53:05,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:53:05,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:53:05,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:53:05,750 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:53:05,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:00" (3/4) ... [2023-08-28 17:53:05,753 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:53:05,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2023-08-28 17:53:05,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-08-28 17:53:05,761 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-28 17:53:05,761 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:53:05,761 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:53:05,762 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:53:05,791 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:53:05,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:53:05,792 INFO L158 Benchmark]: Toolchain (without parser) took 6532.19ms. Allocated memory was 86.0MB in the beginning and 297.8MB in the end (delta: 211.8MB). Free memory was 63.4MB in the beginning and 193.4MB in the end (delta: -130.0MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,792 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:53:05,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.28ms. Allocated memory is still 86.0MB. Free memory was 63.1MB in the beginning and 42.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.95ms. Allocated memory is still 86.0MB. Free memory was 42.3MB in the beginning and 65.4MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,796 INFO L158 Benchmark]: Boogie Preprocessor took 42.50ms. Allocated memory is still 86.0MB. Free memory was 65.4MB in the beginning and 63.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,796 INFO L158 Benchmark]: RCFGBuilder took 618.55ms. Allocated memory is still 86.0MB. Free memory was 63.3MB in the beginning and 35.1MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,796 INFO L158 Benchmark]: TraceAbstraction took 5287.44ms. Allocated memory was 86.0MB in the beginning and 297.8MB in the end (delta: 211.8MB). Free memory was 34.7MB in the beginning and 195.5MB in the end (delta: -160.9MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,797 INFO L158 Benchmark]: Witness Printer took 41.73ms. Allocated memory is still 297.8MB. Free memory was 195.5MB in the beginning and 193.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:53:05,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.28ms. Allocated memory is still 86.0MB. Free memory was 63.1MB in the beginning and 42.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.95ms. Allocated memory is still 86.0MB. Free memory was 42.3MB in the beginning and 65.4MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.50ms. Allocated memory is still 86.0MB. Free memory was 65.4MB in the beginning and 63.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.55ms. Allocated memory is still 86.0MB. Free memory was 63.3MB in the beginning and 35.1MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5287.44ms. Allocated memory was 86.0MB in the beginning and 297.8MB in the end (delta: 211.8MB). Free memory was 34.7MB in the beginning and 195.5MB in the end (delta: -160.9MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. * Witness Printer took 41.73ms. Allocated memory is still 297.8MB. Free memory was 195.5MB in the beginning and 193.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 143 PlacesBefore, 82 PlacesAfterwards, 156 TransitionsBefore, 85 TransitionsAfterwards, 10260 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 10 ChoiceCompositions, 111 TotalNumberOfCompositions, 24524 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9037, independent: 8664, independent conditional: 0, independent unconditional: 8664, dependent: 373, dependent conditional: 0, dependent unconditional: 373, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4461, independent: 4382, independent conditional: 0, independent unconditional: 4382, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9037, independent: 4282, independent conditional: 0, independent unconditional: 4282, dependent: 294, dependent conditional: 0, dependent unconditional: 294, unknown: 4461, unknown conditional: 0, unknown unconditional: 4461] , Statistics on independence cache: Total cache size (in pairs): 474, Positive cache size: 432, Positive conditional cache size: 0, Positive unconditional cache size: 432, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 768]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 779]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 782]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 794]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 798]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 801]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 802]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 804]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 812]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 704]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 820]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 821]: 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 5 procedures, 246 locations, 68 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: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 284 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1073 IncrementalHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 23 mSDtfsCounter, 1073 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=6, InterpolantAutomatonStates: 24, 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, 0.3s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 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 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:53:05,830 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