./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.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 a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:48:47,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:48:47,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:48:47,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:48:47,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:48:47,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:48:47,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:48:47,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:48:47,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:48:47,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:48:47,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:48:47,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:48:47,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:48:47,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:48:47,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:48:47,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:48:47,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:48:47,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:48:47,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:48:47,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:48:47,354 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:48:47,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:48:47,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:48:47,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:48:47,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:48:47,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:48:47,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:48:47,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:48:47,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:48:47,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:48:47,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:48:47,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:48:47,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:48:47,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:48:47,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:48:47,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:48:47,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:48:47,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:48:47,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:48:47,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:48:47,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:48:47,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:48:47,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:48:47,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:48:47,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:48:47,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:48:47,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:48:47,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:48:47,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:48:47,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:48:47,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:48:47,394 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:48:47,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:48:47,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:48:47,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:48:47,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:48:47,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:48:47,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:48:47,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:48:47,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:48:47,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:48:47,396 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:48:47,396 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:48:47,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:48:47,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:48:47,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:48:47,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:48:47,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:48:47,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:48:47,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:48:47,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:48:47,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:48:47,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:48:47,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:48:47,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:48:47,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:48:47,399 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:48:47,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:48:47,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2022-04-18 15:48:47,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:48:47,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:48:47,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:48:47,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:48:47,632 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:48:47,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-04-18 15:48:47,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad9b1d425/8dc078416f824e7ca37cb6b98f27c246/FLAG528e3ee16 [2022-04-18 15:48:48,089 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:48:48,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-04-18 15:48:48,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad9b1d425/8dc078416f824e7ca37cb6b98f27c246/FLAG528e3ee16 [2022-04-18 15:48:48,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad9b1d425/8dc078416f824e7ca37cb6b98f27c246 [2022-04-18 15:48:48,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:48:48,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:48:48,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:48:48,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:48:48,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:48:48,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54db2f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48, skipping insertion in model container [2022-04-18 15:48:48,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:48:48,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:48:48,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-04-18 15:48:48,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:48:48,448 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:48:48,455 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-04-18 15:48:48,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:48:48,507 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:48:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48 WrapperNode [2022-04-18 15:48:48,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:48:48,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:48:48,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:48:48,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:48:48,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,560 INFO L137 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2022-04-18 15:48:48,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:48:48,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:48:48,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:48:48,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:48:48,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:48:48,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:48:48,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:48:48,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:48:48,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (1/1) ... [2022-04-18 15:48:48,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:48:48,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:48:48,620 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) [2022-04-18 15:48:48,648 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 [2022-04-18 15:48:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:48:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 15:48:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 15:48:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:48:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:48:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:48:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:48:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:48:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:48:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:48:48,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:48:48,663 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:48:48,804 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:48:48,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:48:49,006 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:48:49,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:48:49,011 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 15:48:49,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:48:49 BoogieIcfgContainer [2022-04-18 15:48:49,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:48:49,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:48:49,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:48:49,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:48:49,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:48:48" (1/3) ... [2022-04-18 15:48:49,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd27c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:48:49, skipping insertion in model container [2022-04-18 15:48:49,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:48" (2/3) ... [2022-04-18 15:48:49,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd27c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:48:49, skipping insertion in model container [2022-04-18 15:48:49,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:48:49" (3/3) ... [2022-04-18 15:48:49,021 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-04-18 15:48:49,025 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:48:49,025 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:48:49,025 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-04-18 15:48:49,025 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:48:49,080 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 15:48:49,110 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:48:49,114 INFO L340 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 [2022-04-18 15:48:49,114 INFO L341 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-04-18 15:48:49,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 139 transitions, 286 flow [2022-04-18 15:48:49,166 INFO L129 PetriNetUnfolder]: 3/138 cut-off events. [2022-04-18 15:48:49,166 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:48:49,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 3/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-04-18 15:48:49,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 139 transitions, 286 flow [2022-04-18 15:48:49,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 130 transitions, 263 flow [2022-04-18 15:48:49,181 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2022-04-18 15:48:49,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:48:49,181 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:49,189 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:49,189 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-04-18 15:48:49,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash 134864827, now seen corresponding path program 1 times [2022-04-18 15:48:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:49,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244885540] [2022-04-18 15:48:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:49,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:49,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:48:49,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244885540] [2022-04-18 15:48:49,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244885540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:49,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:49,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:49,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552120441] [2022-04-18 15:48:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:49,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:49,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:49,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:49,437 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2022-04-18 15:48:49,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 130 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:49,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2022-04-18 15:48:49,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:49,620 INFO L129 PetriNetUnfolder]: 99/775 cut-off events. [2022-04-18 15:48:49,621 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 15:48:49,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 775 events. 99/775 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4564 event pairs, 28 based on Foata normal form. 41/712 useless extension candidates. Maximal degree in co-relation 971. Up to 160 conditions per place. [2022-04-18 15:48:49,628 INFO L132 encePairwiseOnDemand]: 121/139 looper letters, 22 selfloop transitions, 10 changer transitions 0/134 dead transitions. [2022-04-18 15:48:49,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 134 transitions, 335 flow [2022-04-18 15:48:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2022-04-18 15:48:49,643 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.894484412470024 [2022-04-18 15:48:49,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2022-04-18 15:48:49,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2022-04-18 15:48:49,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:49,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2022-04-18 15:48:49,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,658 INFO L186 Difference]: Start difference. First operand has 131 places, 130 transitions, 263 flow. Second operand 3 states and 373 transitions. [2022-04-18 15:48:49,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 134 transitions, 335 flow [2022-04-18 15:48:49,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 134 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:48:49,668 INFO L242 Difference]: Finished difference. Result has 129 places, 130 transitions, 324 flow [2022-04-18 15:48:49,669 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=129, PETRI_TRANSITIONS=130} [2022-04-18 15:48:49,672 INFO L335 CegarLoopForPetriNet]: 131 programPoint places, -2 predicate places. [2022-04-18 15:48:49,672 INFO L478 AbstractCegarLoop]: Abstraction has has 129 places, 130 transitions, 324 flow [2022-04-18 15:48:49,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,673 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:49,673 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:49,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:48:49,674 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-04-18 15:48:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1882724339, now seen corresponding path program 1 times [2022-04-18 15:48:49,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:49,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420100738] [2022-04-18 15:48:49,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:49,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:48:49,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:49,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420100738] [2022-04-18 15:48:49,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420100738] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:49,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:49,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:49,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789634648] [2022-04-18 15:48:49,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:49,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:49,765 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 139 [2022-04-18 15:48:49,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 130 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:49,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 139 [2022-04-18 15:48:49,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:49,876 INFO L129 PetriNetUnfolder]: 117/936 cut-off events. [2022-04-18 15:48:49,876 INFO L130 PetriNetUnfolder]: For 217/235 co-relation queries the response was YES. [2022-04-18 15:48:49,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 936 events. 117/936 cut-off events. For 217/235 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5938 event pairs, 49 based on Foata normal form. 2/851 useless extension candidates. Maximal degree in co-relation 1409. Up to 236 conditions per place. [2022-04-18 15:48:49,882 INFO L132 encePairwiseOnDemand]: 132/139 looper letters, 38 selfloop transitions, 8 changer transitions 0/146 dead transitions. [2022-04-18 15:48:49,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 146 transitions, 488 flow [2022-04-18 15:48:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2022-04-18 15:48:49,885 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8585131894484412 [2022-04-18 15:48:49,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2022-04-18 15:48:49,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2022-04-18 15:48:49,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:49,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2022-04-18 15:48:49,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,889 INFO L186 Difference]: Start difference. First operand has 129 places, 130 transitions, 324 flow. Second operand 3 states and 358 transitions. [2022-04-18 15:48:49,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 146 transitions, 488 flow [2022-04-18 15:48:49,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 146 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:49,898 INFO L242 Difference]: Finished difference. Result has 131 places, 137 transitions, 376 flow [2022-04-18 15:48:49,898 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=131, PETRI_TRANSITIONS=137} [2022-04-18 15:48:49,899 INFO L335 CegarLoopForPetriNet]: 131 programPoint places, 0 predicate places. [2022-04-18 15:48:49,899 INFO L478 AbstractCegarLoop]: Abstraction has has 131 places, 137 transitions, 376 flow [2022-04-18 15:48:49,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:49,900 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:49,900 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:49,900 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:48:49,902 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-04-18 15:48:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2056892169, now seen corresponding path program 1 times [2022-04-18 15:48:49,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:49,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989779243] [2022-04-18 15:48:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:49,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:48:50,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:50,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989779243] [2022-04-18 15:48:50,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989779243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:50,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:50,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 15:48:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491492282] [2022-04-18 15:48:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:50,107 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:48:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:50,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:48:50,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:48:50,110 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 139 [2022-04-18 15:48:50,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 137 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:50,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 139 [2022-04-18 15:48:50,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:50,260 INFO L129 PetriNetUnfolder]: 47/588 cut-off events. [2022-04-18 15:48:50,260 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-04-18 15:48:50,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 588 events. 47/588 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2689 event pairs, 23 based on Foata normal form. 10/563 useless extension candidates. Maximal degree in co-relation 797. Up to 94 conditions per place. [2022-04-18 15:48:50,264 INFO L132 encePairwiseOnDemand]: 127/139 looper letters, 25 selfloop transitions, 12 changer transitions 0/131 dead transitions. [2022-04-18 15:48:50,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 131 transitions, 382 flow [2022-04-18 15:48:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 15:48:50,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 15:48:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 566 transitions. [2022-04-18 15:48:50,266 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.814388489208633 [2022-04-18 15:48:50,267 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 566 transitions. [2022-04-18 15:48:50,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 566 transitions. [2022-04-18 15:48:50,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:50,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 566 transitions. [2022-04-18 15:48:50,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 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) [2022-04-18 15:48:50,271 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 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) [2022-04-18 15:48:50,271 INFO L186 Difference]: Start difference. First operand has 131 places, 137 transitions, 376 flow. Second operand 5 states and 566 transitions. [2022-04-18 15:48:50,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 131 transitions, 382 flow [2022-04-18 15:48:50,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 131 transitions, 356 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-04-18 15:48:50,278 INFO L242 Difference]: Finished difference. Result has 128 places, 127 transitions, 320 flow [2022-04-18 15:48:50,278 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2022-04-18 15:48:50,280 INFO L335 CegarLoopForPetriNet]: 131 programPoint places, -3 predicate places. [2022-04-18 15:48:50,280 INFO L478 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 320 flow [2022-04-18 15:48:50,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,280 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:50,281 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:50,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:48:50,281 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-04-18 15:48:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1874400102, now seen corresponding path program 1 times [2022-04-18 15:48:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:50,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453632939] [2022-04-18 15:48:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:48:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:50,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453632939] [2022-04-18 15:48:50,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453632939] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:50,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:50,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:48:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266186576] [2022-04-18 15:48:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:50,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:48:50,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:50,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:48:50,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:48:50,352 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 139 [2022-04-18 15:48:50,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:50,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 139 [2022-04-18 15:48:50,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:50,398 INFO L129 PetriNetUnfolder]: 16/418 cut-off events. [2022-04-18 15:48:50,398 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-04-18 15:48:50,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 418 events. 16/418 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1603 event pairs, 6 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 563. Up to 64 conditions per place. [2022-04-18 15:48:50,400 INFO L132 encePairwiseOnDemand]: 136/139 looper letters, 18 selfloop transitions, 2 changer transitions 3/126 dead transitions. [2022-04-18 15:48:50,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 126 transitions, 358 flow [2022-04-18 15:48:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:48:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:48:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-04-18 15:48:50,401 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8201438848920863 [2022-04-18 15:48:50,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-04-18 15:48:50,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-04-18 15:48:50,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:50,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-04-18 15:48:50,402 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) [2022-04-18 15:48:50,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,404 INFO L186 Difference]: Start difference. First operand has 128 places, 127 transitions, 320 flow. Second operand 3 states and 342 transitions. [2022-04-18 15:48:50,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 126 transitions, 358 flow [2022-04-18 15:48:50,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 126 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:50,406 INFO L242 Difference]: Finished difference. Result has 127 places, 123 transitions, 313 flow [2022-04-18 15:48:50,407 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=127, PETRI_TRANSITIONS=123} [2022-04-18 15:48:50,407 INFO L335 CegarLoopForPetriNet]: 131 programPoint places, -4 predicate places. [2022-04-18 15:48:50,407 INFO L478 AbstractCegarLoop]: Abstraction has has 127 places, 123 transitions, 313 flow [2022-04-18 15:48:50,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,408 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:48:50,408 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:48:50,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:48:50,408 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-04-18 15:48:50,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:48:50,409 INFO L85 PathProgramCache]: Analyzing trace with hash 758383794, now seen corresponding path program 1 times [2022-04-18 15:48:50,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:48:50,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818105415] [2022-04-18 15:48:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:48:50,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:48:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:48:50,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:48:50,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:48:50,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818105415] [2022-04-18 15:48:50,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818105415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:48:50,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:48:50,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:48:50,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976295584] [2022-04-18 15:48:50,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:48:50,522 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:48:50,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:48:50,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:48:50,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:48:50,524 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 139 [2022-04-18 15:48:50,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 123 transitions, 313 flow. Second operand has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:48:50,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 139 [2022-04-18 15:48:50,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:48:50,561 INFO L129 PetriNetUnfolder]: 16/396 cut-off events. [2022-04-18 15:48:50,562 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 15:48:50,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 396 events. 16/396 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1450 event pairs, 6 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 539. Up to 41 conditions per place. [2022-04-18 15:48:50,563 INFO L132 encePairwiseOnDemand]: 134/139 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2022-04-18 15:48:50,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 122 transitions, 331 flow [2022-04-18 15:48:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:48:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:48:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2022-04-18 15:48:50,565 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8693045563549161 [2022-04-18 15:48:50,565 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 725 transitions. [2022-04-18 15:48:50,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 725 transitions. [2022-04-18 15:48:50,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:48:50,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 725 transitions. [2022-04-18 15:48:50,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,569 INFO L186 Difference]: Start difference. First operand has 127 places, 123 transitions, 313 flow. Second operand 6 states and 725 transitions. [2022-04-18 15:48:50,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 122 transitions, 331 flow [2022-04-18 15:48:50,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 122 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:48:50,571 INFO L242 Difference]: Finished difference. Result has 126 places, 0 transitions, 0 flow [2022-04-18 15:48:50,571 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=126, PETRI_TRANSITIONS=0} [2022-04-18 15:48:50,573 INFO L335 CegarLoopForPetriNet]: 131 programPoint places, -5 predicate places. [2022-04-18 15:48:50,573 INFO L478 AbstractCegarLoop]: Abstraction has has 126 places, 0 transitions, 0 flow [2022-04-18 15:48:50,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:48:50,575 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2022-04-18 15:48:50,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2022-04-18 15:48:50,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2022-04-18 15:48:50,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2022-04-18 15:48:50,576 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2022-04-18 15:48:50,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2022-04-18 15:48:50,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2022-04-18 15:48:50,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2022-04-18 15:48:50,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-04-18 15:48:50,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2022-04-18 15:48:50,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2022-04-18 15:48:50,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2022-04-18 15:48:50,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2022-04-18 15:48:50,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:48:50,588 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 15:48:50,591 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:48:50,591 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:48:50,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:48:50 BasicIcfg [2022-04-18 15:48:50,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:48:50,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:48:50,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:48:50,594 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:48:50,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:48:49" (3/4) ... [2022-04-18 15:48:50,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 15:48:50,600 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-04-18 15:48:50,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-04-18 15:48:50,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 15:48:50,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 15:48:50,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 15:48:50,637 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 15:48:50,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:48:50,638 INFO L158 Benchmark]: Toolchain (without parser) took 2517.25ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 75.0MB in the end (delta: -8.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,638 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:48:50,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.46ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 103.2MB in the end (delta: -36.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.77ms. Allocated memory is still 136.3MB. Free memory was 103.2MB in the beginning and 101.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,639 INFO L158 Benchmark]: Boogie Preprocessor took 33.72ms. Allocated memory is still 136.3MB. Free memory was 101.2MB in the beginning and 99.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,639 INFO L158 Benchmark]: RCFGBuilder took 417.52ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 84.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,640 INFO L158 Benchmark]: TraceAbstraction took 1579.20ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 77.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,640 INFO L158 Benchmark]: Witness Printer took 44.16ms. Allocated memory is still 136.3MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:48:50,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.46ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 66.6MB in the beginning and 103.2MB in the end (delta: -36.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.77ms. Allocated memory is still 136.3MB. Free memory was 103.2MB in the beginning and 101.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.72ms. Allocated memory is still 136.3MB. Free memory was 101.2MB in the beginning and 99.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.52ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 84.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1579.20ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 77.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 44.16ms. Allocated memory is still 136.3MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 173 locations, 13 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 144 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 63 mSDtfsCounter, 144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 0.4s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 579 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 15:48:50,674 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