./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.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/goblint-regression/13-privatized_30-traces-oplus-vs-meet_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 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 --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 [2023-08-29 02:38:30,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:38:30,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:38:30,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:38:30,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:38:30,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:38:30,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:38:30,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:38:30,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:38:30,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:38:31,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:38:31,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:38:31,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:38:31,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:38:31,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:38:31,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:38:31,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:38:31,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:38:31,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:38:31,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:38:31,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:38:31,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:38:31,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:38:31,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:38:31,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:38:31,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:38:31,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:38:31,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:38:31,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:38:31,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:38:31,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:38:31,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:38:31,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:38:31,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:38:31,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:38:31,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:38:31,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:38:31,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:38:31,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:38:31,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:38:31,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:38:31,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:38:31,078 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:38:31,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:38:31,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:38:31,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:38:31,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:38:31,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:38:31,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:38:31,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:38:31,082 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:38:31,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:38:31,083 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:38:31,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:38:31,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:38:31,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:38:31,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:38:31,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:38:31,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:38:31,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:38:31,084 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:38:31,084 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:38:31,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:38:31,085 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:38:31,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:38:31,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:38:31,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:38:31,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:38:31,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:38:31,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:38:31,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:38:31,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:38:31,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:38:31,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:38:31,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:38:31,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:38:31,087 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:38:31,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:38:31,087 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:38:31,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:38:31,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:38:31,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:38:31,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:38:31,400 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:38:31,400 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:38:31,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-08-29 02:38:32,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:38:32,866 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:38:32,867 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-08-29 02:38:32,879 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9883a448b/d29e4d670df54435a6bf1fcaf676e67a/FLAGd7056f95d [2023-08-29 02:38:32,891 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9883a448b/d29e4d670df54435a6bf1fcaf676e67a [2023-08-29 02:38:32,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:38:32,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:38:32,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:38:32,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:38:32,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:38:32,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:38:32" (1/1) ... [2023-08-29 02:38:32,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fb5c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:32, skipping insertion in model container [2023-08-29 02:38:32,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:38:32" (1/1) ... [2023-08-29 02:38:32,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:38:32,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:38:33,122 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-08-29 02:38:33,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:38:33,287 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:38:33,301 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-08-29 02:38:33,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:38:33,393 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:38:33,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33 WrapperNode [2023-08-29 02:38:33,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:38:33,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:38:33,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:38:33,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:38:33,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,438 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2023-08-29 02:38:33,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:38:33,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:38:33,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:38:33,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:38:33,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:38:33,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:38:33,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:38:33,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:38:33,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (1/1) ... [2023-08-29 02:38:33,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:38:33,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:38:33,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:38:33,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:38:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:38:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:38:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:38:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:38:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:38:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:38:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:38:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:38:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:38:33,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:38:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:38:33,534 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:38:33,632 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:38:33,634 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:38:33,805 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:38:33,812 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:38:33,812 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:38:33,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:38:33 BoogieIcfgContainer [2023-08-29 02:38:33,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:38:33,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:38:33,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:38:33,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:38:33,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:38:32" (1/3) ... [2023-08-29 02:38:33,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9e51a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:38:33, skipping insertion in model container [2023-08-29 02:38:33,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:33" (2/3) ... [2023-08-29 02:38:33,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9e51a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:38:33, skipping insertion in model container [2023-08-29 02:38:33,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:38:33" (3/3) ... [2023-08-29 02:38:33,834 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2023-08-29 02:38:33,841 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:38:33,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:38:33,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 02:38:33,865 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:38:33,976 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 02:38:34,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 96 transitions, 200 flow [2023-08-29 02:38:34,089 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2023-08-29 02:38:34,091 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:38:34,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 2/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-29 02:38:34,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 96 transitions, 200 flow [2023-08-29 02:38:34,102 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 179 flow [2023-08-29 02:38:34,105 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:38:34,118 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 88 transitions, 179 flow [2023-08-29 02:38:34,124 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 88 transitions, 179 flow [2023-08-29 02:38:34,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 179 flow [2023-08-29 02:38:34,161 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-08-29 02:38:34,162 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:38:34,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-29 02:38:34,165 INFO L119 LiptonReduction]: Number of co-enabled transitions 1200 [2023-08-29 02:38:36,687 INFO L134 LiptonReduction]: Checked pairs total: 5054 [2023-08-29 02:38:36,688 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-08-29 02:38:36,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:38:36,705 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;@7832360e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:38:36,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 02:38:36,707 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:38:36,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:38:36,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:36,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:38:36,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 02:38:36,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:36,712 INFO L85 PathProgramCache]: Analyzing trace with hash 331, now seen corresponding path program 1 times [2023-08-29 02:38:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916699786] [2023-08-29 02:38:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:36,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:36,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:36,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916699786] [2023-08-29 02:38:36,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916699786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:36,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:36,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:38:36,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387402270] [2023-08-29 02:38:36,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:36,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:38:36,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:36,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:38:36,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:38:36,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 169 [2023-08-29 02:38:36,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:36,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:36,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 169 [2023-08-29 02:38:36,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:36,885 INFO L130 PetriNetUnfolder]: 56/172 cut-off events. [2023-08-29 02:38:36,886 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:38:36,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 172 events. 56/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 620 event pairs, 56 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 297. Up to 130 conditions per place. [2023-08-29 02:38:36,889 INFO L137 encePairwiseOnDemand]: 166/169 looper letters, 17 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2023-08-29 02:38:36,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 87 flow [2023-08-29 02:38:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:38:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:38:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 200 transitions. [2023-08-29 02:38:36,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.591715976331361 [2023-08-29 02:38:36,901 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 200 transitions. [2023-08-29 02:38:36,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 200 transitions. [2023-08-29 02:38:36,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:36,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 200 transitions. [2023-08-29 02:38:36,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:36,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:36,913 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:36,915 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 61 flow. Second operand 2 states and 200 transitions. [2023-08-29 02:38:36,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 87 flow [2023-08-29 02:38:36,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:38:36,919 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 52 flow [2023-08-29 02:38:36,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-08-29 02:38:36,924 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2023-08-29 02:38:36,924 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 52 flow [2023-08-29 02:38:36,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:36,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:36,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 02:38:36,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:38:36,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 02:38:36,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:36,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1132956593, now seen corresponding path program 1 times [2023-08-29 02:38:36,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:36,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186930699] [2023-08-29 02:38:36,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:36,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:37,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:37,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186930699] [2023-08-29 02:38:37,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186930699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:37,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:37,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394874367] [2023-08-29 02:38:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:37,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:37,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:37,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:37,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 169 [2023-08-29 02:38:37,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:37,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 169 [2023-08-29 02:38:37,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:37,149 INFO L130 PetriNetUnfolder]: 107/288 cut-off events. [2023-08-29 02:38:37,149 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:38:37,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 288 events. 107/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1285 event pairs, 22 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 537. Up to 125 conditions per place. [2023-08-29 02:38:37,152 INFO L137 encePairwiseOnDemand]: 163/169 looper letters, 27 selfloop transitions, 5 changer transitions 2/39 dead transitions. [2023-08-29 02:38:37,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 148 flow [2023-08-29 02:38:37,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-29 02:38:37,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5542406311637081 [2023-08-29 02:38:37,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-29 02:38:37,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-29 02:38:37,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:37,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-29 02:38:37,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,162 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 52 flow. Second operand 3 states and 281 transitions. [2023-08-29 02:38:37,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 39 transitions, 148 flow [2023-08-29 02:38:37,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 148 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:38:37,164 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 86 flow [2023-08-29 02:38:37,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-08-29 02:38:37,165 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-08-29 02:38:37,165 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 86 flow [2023-08-29 02:38:37,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:37,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:37,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:38:37,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 02:38:37,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:37,168 INFO L85 PathProgramCache]: Analyzing trace with hash 735858307, now seen corresponding path program 1 times [2023-08-29 02:38:37,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:37,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250149488] [2023-08-29 02:38:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:37,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:37,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:37,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250149488] [2023-08-29 02:38:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250149488] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:37,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:37,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:37,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925208807] [2023-08-29 02:38:37,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:37,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:37,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:37,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:37,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:37,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 169 [2023-08-29 02:38:37,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:37,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 169 [2023-08-29 02:38:37,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:37,314 INFO L130 PetriNetUnfolder]: 101/274 cut-off events. [2023-08-29 02:38:37,314 INFO L131 PetriNetUnfolder]: For 52/54 co-relation queries the response was YES. [2023-08-29 02:38:37,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 274 events. 101/274 cut-off events. For 52/54 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1177 event pairs, 75 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 582. Up to 214 conditions per place. [2023-08-29 02:38:37,320 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 26 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2023-08-29 02:38:37,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 164 flow [2023-08-29 02:38:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:37,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-08-29 02:38:37,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5404339250493096 [2023-08-29 02:38:37,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-08-29 02:38:37,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-08-29 02:38:37,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:37,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-08-29 02:38:37,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,330 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 86 flow. Second operand 3 states and 274 transitions. [2023-08-29 02:38:37,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 164 flow [2023-08-29 02:38:37,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:38:37,333 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 97 flow [2023-08-29 02:38:37,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-08-29 02:38:37,334 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2023-08-29 02:38:37,334 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 97 flow [2023-08-29 02:38:37,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:37,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:37,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:38:37,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 02:38:37,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:37,336 INFO L85 PathProgramCache]: Analyzing trace with hash 648973133, now seen corresponding path program 1 times [2023-08-29 02:38:37,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:37,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223188772] [2023-08-29 02:38:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:37,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:37,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:37,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223188772] [2023-08-29 02:38:37,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223188772] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:37,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:37,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:38:37,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223547049] [2023-08-29 02:38:37,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:37,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:37,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:37,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 169 [2023-08-29 02:38:37,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:37,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 169 [2023-08-29 02:38:37,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:37,512 INFO L130 PetriNetUnfolder]: 77/228 cut-off events. [2023-08-29 02:38:37,512 INFO L131 PetriNetUnfolder]: For 59/60 co-relation queries the response was YES. [2023-08-29 02:38:37,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 228 events. 77/228 cut-off events. For 59/60 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 954 event pairs, 34 based on Foata normal form. 8/234 useless extension candidates. Maximal degree in co-relation 494. Up to 133 conditions per place. [2023-08-29 02:38:37,514 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 23 selfloop transitions, 6 changer transitions 6/42 dead transitions. [2023-08-29 02:38:37,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 194 flow [2023-08-29 02:38:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2023-08-29 02:38:37,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562130177514792 [2023-08-29 02:38:37,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2023-08-29 02:38:37,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2023-08-29 02:38:37,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:37,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2023-08-29 02:38:37,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,519 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 97 flow. Second operand 3 states and 282 transitions. [2023-08-29 02:38:37,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 194 flow [2023-08-29 02:38:37,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 42 transitions, 178 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-29 02:38:37,521 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 102 flow [2023-08-29 02:38:37,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2023-08-29 02:38:37,522 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-08-29 02:38:37,522 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 102 flow [2023-08-29 02:38:37,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:37,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:37,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:38:37,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 02:38:37,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash 664908407, now seen corresponding path program 1 times [2023-08-29 02:38:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126530240] [2023-08-29 02:38:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:37,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:37,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:37,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126530240] [2023-08-29 02:38:37,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126530240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:37,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:37,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:37,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168757368] [2023-08-29 02:38:37,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:37,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:37,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 169 [2023-08-29 02:38:37,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:37,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 169 [2023-08-29 02:38:37,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:37,621 INFO L130 PetriNetUnfolder]: 67/197 cut-off events. [2023-08-29 02:38:37,622 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-08-29 02:38:37,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 197 events. 67/197 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 788 event pairs, 45 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 485. Up to 154 conditions per place. [2023-08-29 02:38:37,623 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 19 selfloop transitions, 4 changer transitions 9/37 dead transitions. [2023-08-29 02:38:37,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 188 flow [2023-08-29 02:38:37,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-08-29 02:38:37,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5404339250493096 [2023-08-29 02:38:37,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-08-29 02:38:37,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-08-29 02:38:37,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:37,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-08-29 02:38:37,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,627 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 102 flow. Second operand 3 states and 274 transitions. [2023-08-29 02:38:37,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 188 flow [2023-08-29 02:38:37,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 178 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:38:37,629 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 98 flow [2023-08-29 02:38:37,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-08-29 02:38:37,630 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2023-08-29 02:38:37,631 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 98 flow [2023-08-29 02:38:37,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:37,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:37,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:38:37,632 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 02:38:37,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1292888514, now seen corresponding path program 1 times [2023-08-29 02:38:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:37,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487587832] [2023-08-29 02:38:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:37,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:37,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487587832] [2023-08-29 02:38:37,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487587832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:37,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:37,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:38:37,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775507136] [2023-08-29 02:38:37,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:37,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:37,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:37,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:37,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:37,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2023-08-29 02:38:37,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:37,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2023-08-29 02:38:37,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:37,763 INFO L130 PetriNetUnfolder]: 8/49 cut-off events. [2023-08-29 02:38:37,764 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 02:38:37,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 49 events. 8/49 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 95 event pairs, 0 based on Foata normal form. 11/60 useless extension candidates. Maximal degree in co-relation 129. Up to 26 conditions per place. [2023-08-29 02:38:37,764 INFO L137 encePairwiseOnDemand]: 163/169 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2023-08-29 02:38:37,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 138 flow [2023-08-29 02:38:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-08-29 02:38:37,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5285996055226825 [2023-08-29 02:38:37,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-08-29 02:38:37,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-08-29 02:38:37,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:37,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-08-29 02:38:37,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,769 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 98 flow. Second operand 3 states and 268 transitions. [2023-08-29 02:38:37,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 138 flow [2023-08-29 02:38:37,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 113 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-29 02:38:37,770 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-08-29 02:38:37,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-08-29 02:38:37,771 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2023-08-29 02:38:37,771 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-08-29 02:38:37,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:37,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 02:38:37,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 02:38:37,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 02:38:37,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 02:38:37,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 02:38:37,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 02:38:37,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 02:38:37,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 02:38:37,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:38:37,776 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-29 02:38:37,781 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:38:37,781 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:38:37,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:38:37 BasicIcfg [2023-08-29 02:38:37,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:38:37,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:38:37,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:38:37,785 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:38:37,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:38:33" (3/4) ... [2023-08-29 02:38:37,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 02:38:37,793 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 02:38:37,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-29 02:38:37,797 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 02:38:37,797 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 02:38:37,797 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 02:38:37,827 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 02:38:37,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:38:37,828 INFO L158 Benchmark]: Toolchain (without parser) took 4932.78ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 47.2MB in the beginning and 41.1MB in the end (delta: 6.1MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,828 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:38:37,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.76ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.0MB in the beginning and 59.3MB in the end (delta: -12.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,829 INFO L158 Benchmark]: Boogie Preprocessor took 22.74ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 55.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,830 INFO L158 Benchmark]: RCFGBuilder took 350.35ms. Allocated memory is still 86.0MB. Free memory was 55.9MB in the beginning and 41.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,830 INFO L158 Benchmark]: TraceAbstraction took 3968.44ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 40.8MB in the beginning and 44.2MB in the end (delta: -3.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,830 INFO L158 Benchmark]: Witness Printer took 42.43ms. Allocated memory is still 104.9MB. Free memory was 44.2MB in the beginning and 41.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:38:37,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.76ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.0MB in the beginning and 59.3MB in the end (delta: -12.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.74ms. Allocated memory is still 86.0MB. Free memory was 57.2MB in the beginning and 55.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.35ms. Allocated memory is still 86.0MB. Free memory was 55.9MB in the beginning and 41.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3968.44ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 40.8MB in the beginning and 44.2MB in the end (delta: -3.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 42.43ms. Allocated memory is still 104.9MB. Free memory was 44.2MB in the beginning and 41.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 90 PlacesBefore, 32 PlacesAfterwards, 88 TransitionsBefore, 29 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 5054 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1921, independent: 1603, independent conditional: 0, independent unconditional: 1603, dependent: 318, dependent conditional: 0, dependent unconditional: 318, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 626, independent: 585, independent conditional: 0, independent unconditional: 585, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1921, independent: 1018, independent conditional: 0, independent unconditional: 1018, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 626, unknown conditional: 0, unknown unconditional: 626] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: 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: 704]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: 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, 121 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 21 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 02:38:37,854 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