./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_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 cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:51:31,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:51:31,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:51:31,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:51:31,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:51:31,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:51:31,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:51:31,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:51:31,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:51:31,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:51:31,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:51:31,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:51:31,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:51:31,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:51:31,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:51:31,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:51:31,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:51:31,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:51:31,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:51:31,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:51:31,412 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:51:31,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:51:31,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:51:31,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:51:31,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:51:31,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:51:31,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:51:31,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:51:31,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:51:31,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:51:31,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:51:31,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:51:31,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:51:31,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:51:31,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:51:31,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:51:31,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:51:31,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:51:31,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:51:31,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:51:31,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:51:31,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:51:31,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:51:31,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:51:31,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:51:31,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:51:31,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:51:31,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:51:31,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:51:31,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:51:31,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:51:31,470 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:51:31,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:51:31,471 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:51:31,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:51:31,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:51:31,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:51:31,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:51:31,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:51:31,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:51:31,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:51:31,473 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:51:31,473 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:51:31,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:51:31,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:51:31,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:51:31,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:51:31,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:51:31,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:51:31,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:31,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:51:31,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:51:31,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:51:31,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:51:31,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:51:31,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:51:31,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:51:31,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:51:31,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 [2022-04-18 15:51:31,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:51:31,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:51:31,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:51:31,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:51:31,756 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:51:31,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-04-18 15:51:31,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d24dfb27/6d42c1b706a043cd839a1715e8474764/FLAG7c32e4161 [2022-04-18 15:51:32,338 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:51:32,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-04-18 15:51:32,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d24dfb27/6d42c1b706a043cd839a1715e8474764/FLAG7c32e4161 [2022-04-18 15:51:32,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d24dfb27/6d42c1b706a043cd839a1715e8474764 [2022-04-18 15:51:32,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:51:32,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:51:32,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:32,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:51:32,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:51:32,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:32" (1/1) ... [2022-04-18 15:51:32,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f70eab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:32, skipping insertion in model container [2022-04-18 15:51:32,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:32" (1/1) ... [2022-04-18 15:51:32,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:51:32,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:51:33,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-04-18 15:51:33,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:33,157 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:51:33,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-04-18 15:51:33,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:33,237 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:51:33,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33 WrapperNode [2022-04-18 15:51:33,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:33,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:33,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:51:33,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:51:33,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,301 INFO L137 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 141 [2022-04-18 15:51:33,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:33,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:51:33,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:51:33,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:51:33,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:51:33,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:51:33,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:51:33,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:51:33,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (1/1) ... [2022-04-18 15:51:33,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:33,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:33,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 15:51:33,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 15:51:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 15:51:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 15:51:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:51:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-04-18 15:51:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 15:51:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:51:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:51:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:51:33,405 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:51:33,549 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:51:33,551 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:51:33,801 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:51:33,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:51:33,810 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 15:51:33,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:33 BoogieIcfgContainer [2022-04-18 15:51:33,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:51:33,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:51:33,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:51:33,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:51:33,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:51:32" (1/3) ... [2022-04-18 15:51:33,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ac4fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:33, skipping insertion in model container [2022-04-18 15:51:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:33" (2/3) ... [2022-04-18 15:51:33,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ac4fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:33, skipping insertion in model container [2022-04-18 15:51:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:33" (3/3) ... [2022-04-18 15:51:33,830 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2022-04-18 15:51:33,848 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:51:33,849 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:51:33,849 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-04-18 15:51:33,849 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:51:33,909 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 15:51:33,955 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:51:33,961 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 15:51:33,961 INFO L341 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-04-18 15:51:33,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 196 transitions, 407 flow [2022-04-18 15:51:34,065 INFO L129 PetriNetUnfolder]: 5/193 cut-off events. [2022-04-18 15:51:34,066 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:51:34,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 193 events. 5/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 387 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2022-04-18 15:51:34,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 196 transitions, 407 flow [2022-04-18 15:51:34,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 193 transitions, 395 flow [2022-04-18 15:51:34,118 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2022-04-18 15:51:34,121 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:51:34,121 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:34,122 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:34,122 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:34,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:34,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1887228511, now seen corresponding path program 1 times [2022-04-18 15:51:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:34,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180983010] [2022-04-18 15:51:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:34,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:34,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:34,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180983010] [2022-04-18 15:51:34,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180983010] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:34,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:34,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144680840] [2022-04-18 15:51:34,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:34,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:34,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:34,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:34,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:34,458 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 196 [2022-04-18 15:51:34,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 193 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:34,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:34,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 196 [2022-04-18 15:51:34,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:35,328 INFO L129 PetriNetUnfolder]: 1131/4918 cut-off events. [2022-04-18 15:51:35,328 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-04-18 15:51:35,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6666 conditions, 4918 events. 1131/4918 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 49304 event pairs, 686 based on Foata normal form. 218/4201 useless extension candidates. Maximal degree in co-relation 6617. Up to 1264 conditions per place. [2022-04-18 15:51:35,392 INFO L132 encePairwiseOnDemand]: 185/196 looper letters, 24 selfloop transitions, 6 changer transitions 0/198 dead transitions. [2022-04-18 15:51:35,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 198 transitions, 471 flow [2022-04-18 15:51:35,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2022-04-18 15:51:35,412 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9387755102040817 [2022-04-18 15:51:35,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2022-04-18 15:51:35,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2022-04-18 15:51:35,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:35,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2022-04-18 15:51:35,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:35,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:35,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:35,439 INFO L186 Difference]: Start difference. First operand has 198 places, 193 transitions, 395 flow. Second operand 3 states and 552 transitions. [2022-04-18 15:51:35,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 198 transitions, 471 flow [2022-04-18 15:51:35,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 198 transitions, 466 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 15:51:35,455 INFO L242 Difference]: Finished difference. Result has 195 places, 190 transitions, 422 flow [2022-04-18 15:51:35,457 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=195, PETRI_TRANSITIONS=190} [2022-04-18 15:51:35,462 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -3 predicate places. [2022-04-18 15:51:35,462 INFO L478 AbstractCegarLoop]: Abstraction has has 195 places, 190 transitions, 422 flow [2022-04-18 15:51:35,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:35,463 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:35,463 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:35,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:51:35,464 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:35,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:35,465 INFO L85 PathProgramCache]: Analyzing trace with hash 764004897, now seen corresponding path program 1 times [2022-04-18 15:51:35,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:35,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311949575] [2022-04-18 15:51:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:35,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311949575] [2022-04-18 15:51:35,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311949575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:35,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:35,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:35,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452354546] [2022-04-18 15:51:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:35,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:35,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:35,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:35,603 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 196 [2022-04-18 15:51:35,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 190 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:35,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:35,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 196 [2022-04-18 15:51:35,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:36,382 INFO L129 PetriNetUnfolder]: 719/5852 cut-off events. [2022-04-18 15:51:36,382 INFO L130 PetriNetUnfolder]: For 735/1107 co-relation queries the response was YES. [2022-04-18 15:51:36,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8105 conditions, 5852 events. 719/5852 cut-off events. For 735/1107 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 67634 event pairs, 277 based on Foata normal form. 1/5228 useless extension candidates. Maximal degree in co-relation 8057. Up to 941 conditions per place. [2022-04-18 15:51:36,458 INFO L132 encePairwiseOnDemand]: 186/196 looper letters, 21 selfloop transitions, 10 changer transitions 0/202 dead transitions. [2022-04-18 15:51:36,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 202 transitions, 534 flow [2022-04-18 15:51:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2022-04-18 15:51:36,461 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2022-04-18 15:51:36,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2022-04-18 15:51:36,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2022-04-18 15:51:36,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:36,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2022-04-18 15:51:36,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:36,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:36,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:36,466 INFO L186 Difference]: Start difference. First operand has 195 places, 190 transitions, 422 flow. Second operand 3 states and 546 transitions. [2022-04-18 15:51:36,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 202 transitions, 534 flow [2022-04-18 15:51:36,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 202 transitions, 514 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:36,481 INFO L242 Difference]: Finished difference. Result has 197 places, 200 transitions, 510 flow [2022-04-18 15:51:36,482 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=197, PETRI_TRANSITIONS=200} [2022-04-18 15:51:36,483 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -1 predicate places. [2022-04-18 15:51:36,483 INFO L478 AbstractCegarLoop]: Abstraction has has 197 places, 200 transitions, 510 flow [2022-04-18 15:51:36,484 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:36,484 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:36,484 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:36,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:51:36,484 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1771614900, now seen corresponding path program 1 times [2022-04-18 15:51:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:36,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211063802] [2022-04-18 15:51:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:36,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211063802] [2022-04-18 15:51:36,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211063802] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:36,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:36,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:36,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184461589] [2022-04-18 15:51:36,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:36,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:36,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:36,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:36,596 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 196 [2022-04-18 15:51:36,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 200 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:36,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:36,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 196 [2022-04-18 15:51:36,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:37,935 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 7#L706-1true, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 54#L693true, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:37,936 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,936 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,936 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,937 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,937 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][203], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 41#L692-4true, 7#L706-1true, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:37,938 INFO L384 tUnfolder$Statistics]: this new event has 99 ancestors and is not cut-off event [2022-04-18 15:51:37,938 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is not cut-off event [2022-04-18 15:51:37,938 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is not cut-off event [2022-04-18 15:51:37,939 INFO L387 tUnfolder$Statistics]: existing Event has 99 ancestors and is not cut-off event [2022-04-18 15:51:37,939 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][203], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 41#L692-4true, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:37,940 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,940 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,940 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,940 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,940 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][203], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 41#L692-4true, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:37,941 INFO L384 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,941 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,941 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:37,941 INFO L387 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-04-18 15:51:38,035 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 54#L693true, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:38,036 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,036 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,036 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,036 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,037 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 54#L693true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:38,037 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,037 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,037 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,037 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 15:51:38,916 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 7#L706-1true, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 87#L695-3true, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:38,916 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-04-18 15:51:38,916 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-04-18 15:51:38,916 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-04-18 15:51:38,917 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-04-18 15:51:38,999 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 87#L695-3true, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,000 INFO L384 tUnfolder$Statistics]: this new event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,000 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,000 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,000 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,003 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 87#L695-3true, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,003 INFO L384 tUnfolder$Statistics]: this new event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,003 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,003 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,003 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,078 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, 7#L706-1true, t3_funThread1of1ForFork2InUse, 19#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,079 INFO L384 tUnfolder$Statistics]: this new event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,079 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,079 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,079 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,079 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, 141#L695-4true, Black: 210#true, t_funThread1of1ForFork0InUse, 7#L706-1true, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,080 INFO L384 tUnfolder$Statistics]: this new event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,080 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,080 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,080 INFO L387 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-04-18 15:51:39,324 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, Black: 210#true, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, 19#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,324 INFO L384 tUnfolder$Statistics]: this new event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,325 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,325 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,325 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,325 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, 141#L695-4true, Black: 210#true, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,325 INFO L384 tUnfolder$Statistics]: this new event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,325 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,326 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,326 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,327 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, 19#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,328 INFO L384 tUnfolder$Statistics]: this new event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,328 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,328 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,328 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,328 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][144], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, 141#L695-4true, Black: 210#true, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, 151#L729-4true, t2_funThread1of1ForFork1InUse, 216#true, 212#(= |#race~g~0| 0)]) [2022-04-18 15:51:39,328 INFO L384 tUnfolder$Statistics]: this new event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,329 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,329 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:39,329 INFO L387 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-04-18 15:51:41,249 INFO L129 PetriNetUnfolder]: 9795/43337 cut-off events. [2022-04-18 15:51:41,249 INFO L130 PetriNetUnfolder]: For 823/916 co-relation queries the response was YES. [2022-04-18 15:51:41,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60706 conditions, 43337 events. 9795/43337 cut-off events. For 823/916 co-relation queries the response was YES. Maximal size of possible extension queue 1535. Compared 643071 event pairs, 6199 based on Foata normal form. 5/35821 useless extension candidates. Maximal degree in co-relation 60657. Up to 12729 conditions per place. [2022-04-18 15:51:41,894 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 27 selfloop transitions, 6 changer transitions 0/213 dead transitions. [2022-04-18 15:51:41,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 213 transitions, 606 flow [2022-04-18 15:51:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:41,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2022-04-18 15:51:41,896 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9149659863945578 [2022-04-18 15:51:41,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2022-04-18 15:51:41,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2022-04-18 15:51:41,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:41,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2022-04-18 15:51:41,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:41,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:41,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:41,901 INFO L186 Difference]: Start difference. First operand has 197 places, 200 transitions, 510 flow. Second operand 3 states and 538 transitions. [2022-04-18 15:51:41,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 213 transitions, 606 flow [2022-04-18 15:51:41,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 213 transitions, 586 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:41,910 INFO L242 Difference]: Finished difference. Result has 199 places, 205 transitions, 536 flow [2022-04-18 15:51:41,910 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=199, PETRI_TRANSITIONS=205} [2022-04-18 15:51:41,912 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, 1 predicate places. [2022-04-18 15:51:41,913 INFO L478 AbstractCegarLoop]: Abstraction has has 199 places, 205 transitions, 536 flow [2022-04-18 15:51:41,913 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:41,913 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:41,913 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:41,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:51:41,914 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1438635879, now seen corresponding path program 1 times [2022-04-18 15:51:41,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:41,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129179833] [2022-04-18 15:51:41,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:41,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:41,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:41,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129179833] [2022-04-18 15:51:41,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129179833] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:41,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:41,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:41,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78504559] [2022-04-18 15:51:41,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:41,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:41,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:42,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:42,001 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 196 [2022-04-18 15:51:42,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 205 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:42,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:42,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 196 [2022-04-18 15:51:42,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:44,313 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][173], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, 181#ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACEtrue, 224#(= |#race~h~0| 0), Black: 210#true, t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, t2_funThread1of1ForFork1InUse, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 216#true, 54#L693true]) [2022-04-18 15:51:44,314 INFO L384 tUnfolder$Statistics]: this new event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,314 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,314 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,314 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,315 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][173], [Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, 224#(= |#race~h~0| 0), t_funThread1of1ForFork0InUse, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t3_funThread1of1ForFork2InUse, t2_funThread1of1ForFork1InUse, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 173#L732-2true, 216#true, 54#L693true]) [2022-04-18 15:51:44,315 INFO L384 tUnfolder$Statistics]: this new event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,315 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,315 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:44,315 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:46,445 INFO L129 PetriNetUnfolder]: 8204/48625 cut-off events. [2022-04-18 15:51:46,445 INFO L130 PetriNetUnfolder]: For 6113/8045 co-relation queries the response was YES. [2022-04-18 15:51:46,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72201 conditions, 48625 events. 8204/48625 cut-off events. For 6113/8045 co-relation queries the response was YES. Maximal size of possible extension queue 1763. Compared 776826 event pairs, 2379 based on Foata normal form. 14/43023 useless extension candidates. Maximal degree in co-relation 72151. Up to 9316 conditions per place. [2022-04-18 15:51:47,022 INFO L132 encePairwiseOnDemand]: 185/196 looper letters, 26 selfloop transitions, 11 changer transitions 0/220 dead transitions. [2022-04-18 15:51:47,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 220 transitions, 666 flow [2022-04-18 15:51:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2022-04-18 15:51:47,025 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.923469387755102 [2022-04-18 15:51:47,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2022-04-18 15:51:47,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2022-04-18 15:51:47,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:47,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2022-04-18 15:51:47,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,029 INFO L186 Difference]: Start difference. First operand has 199 places, 205 transitions, 536 flow. Second operand 3 states and 543 transitions. [2022-04-18 15:51:47,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 220 transitions, 666 flow [2022-04-18 15:51:47,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 220 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:47,077 INFO L242 Difference]: Finished difference. Result has 201 places, 216 transitions, 632 flow [2022-04-18 15:51:47,077 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=201, PETRI_TRANSITIONS=216} [2022-04-18 15:51:47,079 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, 3 predicate places. [2022-04-18 15:51:47,079 INFO L478 AbstractCegarLoop]: Abstraction has has 201 places, 216 transitions, 632 flow [2022-04-18 15:51:47,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,080 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:47,080 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:47,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:51:47,081 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -758136751, now seen corresponding path program 1 times [2022-04-18 15:51:47,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:47,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026845929] [2022-04-18 15:51:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:47,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:47,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:47,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026845929] [2022-04-18 15:51:47,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026845929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:47,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:47,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684737741] [2022-04-18 15:51:47,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:47,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:47,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:47,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:47,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:47,145 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 196 [2022-04-18 15:51:47,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 216 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:47,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 196 [2022-04-18 15:51:47,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:49,559 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][173], [Black: 222#true, 224#(= |#race~h~0| 0), t_funThread1of1ForFork0InUse, 88#t2_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t3_funThread1of1ForFork2InUse, t2_funThread1of1ForFork1InUse, 173#L732-2true, 54#L693true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 185#L717-1true, Black: 210#true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:49,560 INFO L384 tUnfolder$Statistics]: this new event has 110 ancestors and is cut-off event [2022-04-18 15:51:49,560 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is cut-off event [2022-04-18 15:51:49,560 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is cut-off event [2022-04-18 15:51:49,560 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is cut-off event [2022-04-18 15:51:49,696 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([456] L717-->L717-1: Formula: (= |v_#race~h~0_4| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_4|} AuxVars[] AssignedVars[#race~h~0][173], [Black: 222#true, 224#(= |#race~h~0| 0), t_funThread1of1ForFork0InUse, t3_funThread1of1ForFork2InUse, t2_funThread1of1ForFork1InUse, 54#L693true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 101#L706-2true, 185#L717-1true, 181#ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACEtrue, Black: 210#true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:49,696 INFO L384 tUnfolder$Statistics]: this new event has 110 ancestors and is not cut-off event [2022-04-18 15:51:49,696 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:49,696 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:49,696 INFO L387 tUnfolder$Statistics]: existing Event has 110 ancestors and is not cut-off event [2022-04-18 15:51:53,412 INFO L129 PetriNetUnfolder]: 10545/60816 cut-off events. [2022-04-18 15:51:53,413 INFO L130 PetriNetUnfolder]: For 20234/25160 co-relation queries the response was YES. [2022-04-18 15:51:53,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104418 conditions, 60816 events. 10545/60816 cut-off events. For 20234/25160 co-relation queries the response was YES. Maximal size of possible extension queue 2069. Compared 991903 event pairs, 3327 based on Foata normal form. 66/55793 useless extension candidates. Maximal degree in co-relation 104367. Up to 14119 conditions per place. [2022-04-18 15:51:54,220 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 44 selfloop transitions, 10 changer transitions 0/235 dead transitions. [2022-04-18 15:51:54,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 235 transitions, 836 flow [2022-04-18 15:51:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:54,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2022-04-18 15:51:54,223 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9149659863945578 [2022-04-18 15:51:54,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2022-04-18 15:51:54,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2022-04-18 15:51:54,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:54,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2022-04-18 15:51:54,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,227 INFO L186 Difference]: Start difference. First operand has 201 places, 216 transitions, 632 flow. Second operand 3 states and 538 transitions. [2022-04-18 15:51:54,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 235 transitions, 836 flow [2022-04-18 15:51:54,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 235 transitions, 802 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:54,274 INFO L242 Difference]: Finished difference. Result has 203 places, 224 transitions, 708 flow [2022-04-18 15:51:54,275 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=203, PETRI_TRANSITIONS=224} [2022-04-18 15:51:54,277 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, 5 predicate places. [2022-04-18 15:51:54,278 INFO L478 AbstractCegarLoop]: Abstraction has has 203 places, 224 transitions, 708 flow [2022-04-18 15:51:54,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,278 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:54,278 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:54,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:51:54,279 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash 76571227, now seen corresponding path program 1 times [2022-04-18 15:51:54,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:54,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222844224] [2022-04-18 15:51:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:54,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:54,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:54,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222844224] [2022-04-18 15:51:54,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222844224] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:54,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:54,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:51:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133280246] [2022-04-18 15:51:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:54,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:54,355 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 196 [2022-04-18 15:51:54,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 224 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:54,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:54,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 196 [2022-04-18 15:51:54,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:55,430 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([256] L732-->L732-1: Formula: (= |v_#race~h~0_7| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_7|} AuxVars[] AssignedVars[#race~h~0][217], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), 137#L732-1true, t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 87#L695-3true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,430 INFO L384 tUnfolder$Statistics]: this new event has 121 ancestors and is not cut-off event [2022-04-18 15:51:55,431 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is not cut-off event [2022-04-18 15:51:55,431 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is not cut-off event [2022-04-18 15:51:55,431 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is not cut-off event [2022-04-18 15:51:55,475 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([256] L732-->L732-1: Formula: (= |v_#race~h~0_7| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_7|} AuxVars[] AssignedVars[#race~h~0][217], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), 137#L732-1true, t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, 141#L695-4true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,476 INFO L384 tUnfolder$Statistics]: this new event has 122 ancestors and is not cut-off event [2022-04-18 15:51:55,476 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is not cut-off event [2022-04-18 15:51:55,476 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is not cut-off event [2022-04-18 15:51:55,476 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is not cut-off event [2022-04-18 15:51:55,519 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([256] L732-->L732-1: Formula: (= |v_#race~h~0_7| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_7|} AuxVars[] AssignedVars[#race~h~0][106], [Black: 222#true, t_funThread1of1ForFork0InUse, 137#L732-1true, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 62#L696true, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,519 INFO L384 tUnfolder$Statistics]: this new event has 123 ancestors and is not cut-off event [2022-04-18 15:51:55,519 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is not cut-off event [2022-04-18 15:51:55,519 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is not cut-off event [2022-04-18 15:51:55,519 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is not cut-off event [2022-04-18 15:51:55,702 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([354] L733-->L733-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#B~0.base_9|))) (and (= (select .cse0 |v_~#B~0.offset_9|) 0) (= |v_#pthreadsMutex_15| (store |v_#pthreadsMutex_16| |v_~#B~0.base_9| (store .cse0 |v_~#B~0.offset_9| 1))) (= |v_ULTIMATE.start_main_#t~nondet24#1_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#B~0.base=|v_~#B~0.base_9|, ~#B~0.offset=|v_~#B~0.offset_9|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#B~0.base=|v_~#B~0.base_9|, ULTIMATE.start_main_#t~nondet24#1=|v_ULTIMATE.start_main_#t~nondet24#1_2|, ~#B~0.offset=|v_~#B~0.offset_9|} AuxVars[] AssignedVars[#pthreadsMutex, ULTIMATE.start_main_#t~nondet24#1][180], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 234#true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 4#L733-1true, 124#L708true, Black: 210#true, 96#L688-2true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,702 INFO L384 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-04-18 15:51:55,702 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-04-18 15:51:55,702 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-04-18 15:51:55,702 INFO L387 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-04-18 15:51:55,799 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][222], [Black: 222#true, t_funThread1of1ForFork0InUse, 122#L736true, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 87#L695-3true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,799 INFO L384 tUnfolder$Statistics]: this new event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,800 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,800 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,800 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,800 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][222], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 109#L719true, t2_funThread1of1ForFork1InUse, 87#L695-3true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 21#L737true, 7#L706-1true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,801 INFO L384 tUnfolder$Statistics]: this new event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,801 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,801 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,801 INFO L387 tUnfolder$Statistics]: existing Event has 129 ancestors and is not cut-off event [2022-04-18 15:51:55,842 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][222], [Black: 222#true, t_funThread1of1ForFork0InUse, 122#L736true, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 141#L695-4true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,842 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,843 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,843 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,843 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,843 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][222], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 109#L719true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 141#L695-4true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, 21#L737true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,843 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,843 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,844 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,844 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,845 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][222], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 87#L695-3true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, 21#L737true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,845 INFO L384 tUnfolder$Statistics]: this new event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,845 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,845 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,845 INFO L387 tUnfolder$Statistics]: existing Event has 130 ancestors and is not cut-off event [2022-04-18 15:51:55,883 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][101], [Black: 222#true, t_funThread1of1ForFork0InUse, 122#L736true, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 62#L696true, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,883 INFO L384 tUnfolder$Statistics]: this new event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,883 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,883 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,883 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,884 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][101], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 62#L696true, 109#L719true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 21#L737true, 7#L706-1true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,884 INFO L384 tUnfolder$Statistics]: this new event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,884 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,884 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,884 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,887 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][222], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 141#L695-4true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, 21#L737true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,888 INFO L384 tUnfolder$Statistics]: this new event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,888 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,888 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,888 INFO L387 tUnfolder$Statistics]: existing Event has 131 ancestors and is not cut-off event [2022-04-18 15:51:55,928 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([425] L706-->L706-1: Formula: (= |v_#race~h~0_1| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_1|} AuxVars[] AssignedVars[#race~h~0][101], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 62#L696true, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 210#true, 7#L706-1true, 21#L737true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|), 228#true]) [2022-04-18 15:51:55,929 INFO L384 tUnfolder$Statistics]: this new event has 132 ancestors and is not cut-off event [2022-04-18 15:51:55,929 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is not cut-off event [2022-04-18 15:51:55,929 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is not cut-off event [2022-04-18 15:51:55,929 INFO L387 tUnfolder$Statistics]: existing Event has 132 ancestors and is not cut-off event [2022-04-18 15:51:56,259 INFO L129 PetriNetUnfolder]: 2748/16505 cut-off events. [2022-04-18 15:51:56,259 INFO L130 PetriNetUnfolder]: For 3648/3992 co-relation queries the response was YES. [2022-04-18 15:51:56,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26822 conditions, 16505 events. 2748/16505 cut-off events. For 3648/3992 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 221003 event pairs, 730 based on Foata normal form. 493/15981 useless extension candidates. Maximal degree in co-relation 26764. Up to 2688 conditions per place. [2022-04-18 15:51:56,357 INFO L132 encePairwiseOnDemand]: 183/196 looper letters, 25 selfloop transitions, 13 changer transitions 0/237 dead transitions. [2022-04-18 15:51:56,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 237 transitions, 814 flow [2022-04-18 15:51:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:56,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-04-18 15:51:56,358 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2022-04-18 15:51:56,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-04-18 15:51:56,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-04-18 15:51:56,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:56,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-04-18 15:51:56,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,363 INFO L186 Difference]: Start difference. First operand has 203 places, 224 transitions, 708 flow. Second operand 3 states and 532 transitions. [2022-04-18 15:51:56,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 237 transitions, 814 flow [2022-04-18 15:51:56,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 237 transitions, 782 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:56,386 INFO L242 Difference]: Finished difference. Result has 204 places, 232 transitions, 747 flow [2022-04-18 15:51:56,386 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=204, PETRI_TRANSITIONS=232} [2022-04-18 15:51:56,387 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, 6 predicate places. [2022-04-18 15:51:56,387 INFO L478 AbstractCegarLoop]: Abstraction has has 204 places, 232 transitions, 747 flow [2022-04-18 15:51:56,388 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,388 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:56,388 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:56,388 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:51:56,388 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:56,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:56,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1200186773, now seen corresponding path program 1 times [2022-04-18 15:51:56,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:56,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985341416] [2022-04-18 15:51:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:56,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:56,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:56,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:56,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985341416] [2022-04-18 15:51:56,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985341416] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:56,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:56,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 15:51:56,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900049276] [2022-04-18 15:51:56,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:56,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:56,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:56,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:56,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:56,583 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 196 [2022-04-18 15:51:56,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 232 transitions, 747 flow. Second operand has 6 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:56,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:56,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 196 [2022-04-18 15:51:56,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:57,007 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([354] L733-->L733-1: Formula: (let ((.cse0 (select |v_#pthreadsMutex_16| |v_~#B~0.base_9|))) (and (= (select .cse0 |v_~#B~0.offset_9|) 0) (= |v_#pthreadsMutex_15| (store |v_#pthreadsMutex_16| |v_~#B~0.base_9| (store .cse0 |v_~#B~0.offset_9| 1))) (= |v_ULTIMATE.start_main_#t~nondet24#1_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#B~0.base=|v_~#B~0.base_9|, ~#B~0.offset=|v_~#B~0.offset_9|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#B~0.base=|v_~#B~0.base_9|, ULTIMATE.start_main_#t~nondet24#1=|v_ULTIMATE.start_main_#t~nondet24#1_2|, ~#B~0.offset=|v_~#B~0.offset_9|} AuxVars[] AssignedVars[#pthreadsMutex, ULTIMATE.start_main_#t~nondet24#1][119], [248#(and (= (select (select |#pthreadsMutex| |~#B~0.base|) |~#B~0.offset|) 1) (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 234#true, Black: 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 146#t2_funENTRYtrue, 4#L733-1true, Black: 210#true, 96#L688-2true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,007 INFO L384 tUnfolder$Statistics]: this new event has 112 ancestors and is not cut-off event [2022-04-18 15:51:57,007 INFO L387 tUnfolder$Statistics]: existing Event has 112 ancestors and is not cut-off event [2022-04-18 15:51:57,007 INFO L387 tUnfolder$Statistics]: existing Event has 112 ancestors and is not cut-off event [2022-04-18 15:51:57,007 INFO L387 tUnfolder$Statistics]: existing Event has 112 ancestors and is not cut-off event [2022-04-18 15:51:57,073 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([429] L707-->L708: Formula: (= |v_#pthreadsMutex_3| (store |v_#pthreadsMutex_4| |v_~#A~0.base_2| (store (select |v_#pthreadsMutex_4| |v_~#A~0.base_2|) |v_~#A~0.offset_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_4|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_3|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} AuxVars[] AssignedVars[#pthreadsMutex][192], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 151#L729-4true, 234#true, 246#(and (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, Black: 210#true, 96#L688-2true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,073 INFO L384 tUnfolder$Statistics]: this new event has 117 ancestors and is cut-off event [2022-04-18 15:51:57,073 INFO L387 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-04-18 15:51:57,073 INFO L387 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-04-18 15:51:57,073 INFO L387 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-04-18 15:51:57,129 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([429] L707-->L708: Formula: (= |v_#pthreadsMutex_3| (store |v_#pthreadsMutex_4| |v_~#A~0.base_2| (store (select |v_#pthreadsMutex_4| |v_~#A~0.base_2|) |v_~#A~0.offset_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_4|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_3|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} AuxVars[] AssignedVars[#pthreadsMutex][114], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 234#true, 246#(and (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, 179#L730-1true, Black: 210#true, 96#L688-2true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,130 INFO L384 tUnfolder$Statistics]: this new event has 120 ancestors and is cut-off event [2022-04-18 15:51:57,130 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-04-18 15:51:57,130 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-04-18 15:51:57,130 INFO L387 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-04-18 15:51:57,172 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([256] L732-->L732-1: Formula: (= |v_#race~h~0_7| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_7|} AuxVars[] AssignedVars[#race~h~0][217], [248#(and (= (select (select |#pthreadsMutex| |~#B~0.base|) |~#B~0.offset|) 1) (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), 137#L732-1true, t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 87#L695-3true, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, Black: 210#true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,172 INFO L384 tUnfolder$Statistics]: this new event has 121 ancestors and is not cut-off event [2022-04-18 15:51:57,172 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is not cut-off event [2022-04-18 15:51:57,172 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is not cut-off event [2022-04-18 15:51:57,172 INFO L387 tUnfolder$Statistics]: existing Event has 121 ancestors and is not cut-off event [2022-04-18 15:51:57,192 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([256] L732-->L732-1: Formula: (= |v_#race~h~0_7| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_7|} AuxVars[] AssignedVars[#race~h~0][217], [248#(and (= (select (select |#pthreadsMutex| |~#B~0.base|) |~#B~0.offset|) 1) (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), 137#L732-1true, t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, 141#L695-4true, Black: 210#true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,192 INFO L384 tUnfolder$Statistics]: this new event has 122 ancestors and is not cut-off event [2022-04-18 15:51:57,192 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is not cut-off event [2022-04-18 15:51:57,192 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is not cut-off event [2022-04-18 15:51:57,192 INFO L387 tUnfolder$Statistics]: existing Event has 122 ancestors and is not cut-off event [2022-04-18 15:51:57,211 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([256] L732-->L732-1: Formula: (= |v_#race~h~0_7| 0) InVars {} OutVars{#race~h~0=|v_#race~h~0_7|} AuxVars[] AssignedVars[#race~h~0][107], [248#(and (= (select (select |#pthreadsMutex| |~#B~0.base|) |~#B~0.offset|) 1) (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 222#true, t_funThread1of1ForFork0InUse, 137#L732-1true, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 62#L696true, 148#L720true, t2_funThread1of1ForFork1InUse, Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, Black: 210#true, 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,211 INFO L384 tUnfolder$Statistics]: this new event has 123 ancestors and is not cut-off event [2022-04-18 15:51:57,211 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is not cut-off event [2022-04-18 15:51:57,211 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is not cut-off event [2022-04-18 15:51:57,211 INFO L387 tUnfolder$Statistics]: existing Event has 123 ancestors and is not cut-off event [2022-04-18 15:51:57,223 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([429] L707-->L708: Formula: (= |v_#pthreadsMutex_3| (store |v_#pthreadsMutex_4| |v_~#A~0.base_2| (store (select |v_#pthreadsMutex_4| |v_~#A~0.base_2|) |v_~#A~0.offset_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_4|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_3|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} AuxVars[] AssignedVars[#pthreadsMutex][191], [248#(and (= (select (select |#pthreadsMutex| |~#B~0.base|) |~#B~0.offset|) 1) (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, t2_funThread1of1ForFork1InUse, 234#true, Black: 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 5#L714-1true, 124#L708true, Black: 210#true, 96#L688-2true, 21#L737true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,224 INFO L384 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-04-18 15:51:57,224 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-04-18 15:51:57,224 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-04-18 15:51:57,224 INFO L387 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-04-18 15:51:57,540 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([429] L707-->L708: Formula: (= |v_#pthreadsMutex_3| (store |v_#pthreadsMutex_4| |v_~#A~0.base_2| (store (select |v_#pthreadsMutex_4| |v_~#A~0.base_2|) |v_~#A~0.offset_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_4|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_3|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} AuxVars[] AssignedVars[#pthreadsMutex][192], [Black: 222#true, t_funThread1of1ForFork0InUse, 122#L736true, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 234#true, 246#(and (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, Black: 210#true, 96#L688-2true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,540 INFO L384 tUnfolder$Statistics]: this new event has 136 ancestors and is cut-off event [2022-04-18 15:51:57,540 INFO L387 tUnfolder$Statistics]: existing Event has 136 ancestors and is cut-off event [2022-04-18 15:51:57,540 INFO L387 tUnfolder$Statistics]: existing Event has 136 ancestors and is cut-off event [2022-04-18 15:51:57,541 INFO L387 tUnfolder$Statistics]: existing Event has 136 ancestors and is cut-off event [2022-04-18 15:51:57,550 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([429] L707-->L708: Formula: (= |v_#pthreadsMutex_3| (store |v_#pthreadsMutex_4| |v_~#A~0.base_2| (store (select |v_#pthreadsMutex_4| |v_~#A~0.base_2|) |v_~#A~0.offset_2| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_4|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_3|, ~#A~0.offset=|v_~#A~0.offset_2|, ~#A~0.base=|v_~#A~0.base_2|} AuxVars[] AssignedVars[#pthreadsMutex][192], [Black: 222#true, t_funThread1of1ForFork0InUse, Black: 230#(= |t_funThread1of1ForFork0_#t~nondet7| |#race~h~0|), t3_funThread1of1ForFork2InUse, 148#L720true, t2_funThread1of1ForFork1InUse, 234#true, 246#(and (<= |~#A~0.base| 3) (not (= |~#B~0.base| |~#A~0.base|))), Black: 236#(= (select (select |#pthreadsMutex| |~#A~0.base|) |~#A~0.offset|) 1), Black: 206#(= |t_funThread1of1ForFork0_#t~nondet4| |#race~g~0|), 124#L708true, Black: 210#true, 96#L688-2true, 21#L737true, Black: 218#(= |t_funThread1of1ForFork0_#t~nondet5| |#race~h~0|)]) [2022-04-18 15:51:57,550 INFO L384 tUnfolder$Statistics]: this new event has 137 ancestors and is cut-off event [2022-04-18 15:51:57,550 INFO L387 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-04-18 15:51:57,550 INFO L387 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-04-18 15:51:57,550 INFO L387 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-04-18 15:51:57,583 INFO L129 PetriNetUnfolder]: 1052/8192 cut-off events. [2022-04-18 15:51:57,583 INFO L130 PetriNetUnfolder]: For 2375/2944 co-relation queries the response was YES. [2022-04-18 15:51:57,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14992 conditions, 8192 events. 1052/8192 cut-off events. For 2375/2944 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 97088 event pairs, 144 based on Foata normal form. 344/8042 useless extension candidates. Maximal degree in co-relation 14927. Up to 1164 conditions per place. [2022-04-18 15:51:57,621 INFO L132 encePairwiseOnDemand]: 188/196 looper letters, 34 selfloop transitions, 11 changer transitions 3/227 dead transitions. [2022-04-18 15:51:57,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 227 transitions, 807 flow [2022-04-18 15:51:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 15:51:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 15:51:57,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 825 transitions. [2022-04-18 15:51:57,624 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8418367346938775 [2022-04-18 15:51:57,624 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 825 transitions. [2022-04-18 15:51:57,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 825 transitions. [2022-04-18 15:51:57,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:57,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 825 transitions. [2022-04-18 15:51:57,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:57,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:57,630 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:57,630 INFO L186 Difference]: Start difference. First operand has 204 places, 232 transitions, 747 flow. Second operand 5 states and 825 transitions. [2022-04-18 15:51:57,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 227 transitions, 807 flow [2022-04-18 15:51:57,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 227 transitions, 790 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:57,638 INFO L242 Difference]: Finished difference. Result has 205 places, 218 transitions, 682 flow [2022-04-18 15:51:57,639 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=682, PETRI_PLACES=205, PETRI_TRANSITIONS=218} [2022-04-18 15:51:57,639 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, 7 predicate places. [2022-04-18 15:51:57,640 INFO L478 AbstractCegarLoop]: Abstraction has has 205 places, 218 transitions, 682 flow [2022-04-18 15:51:57,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:57,641 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:57,641 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:57,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 15:51:57,641 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 15:51:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:57,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1378217845, now seen corresponding path program 2 times [2022-04-18 15:51:57,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:57,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824154323] [2022-04-18 15:51:57,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:57,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824154323] [2022-04-18 15:51:57,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824154323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:57,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:57,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 15:51:57,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114398719] [2022-04-18 15:51:57,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:57,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:57,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:57,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:57,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:57,798 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 196 [2022-04-18 15:51:57,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 218 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:57,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:57,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 196 [2022-04-18 15:51:57,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:58,041 INFO L129 PetriNetUnfolder]: 131/1810 cut-off events. [2022-04-18 15:51:58,042 INFO L130 PetriNetUnfolder]: For 668/701 co-relation queries the response was YES. [2022-04-18 15:51:58,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3449 conditions, 1810 events. 131/1810 cut-off events. For 668/701 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14471 event pairs, 24 based on Foata normal form. 43/1803 useless extension candidates. Maximal degree in co-relation 3382. Up to 220 conditions per place. [2022-04-18 15:51:58,052 INFO L132 encePairwiseOnDemand]: 184/196 looper letters, 0 selfloop transitions, 0 changer transitions 193/193 dead transitions. [2022-04-18 15:51:58,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 193 transitions, 642 flow [2022-04-18 15:51:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 15:51:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 15:51:58,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 826 transitions. [2022-04-18 15:51:58,054 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8428571428571429 [2022-04-18 15:51:58,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 826 transitions. [2022-04-18 15:51:58,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 826 transitions. [2022-04-18 15:51:58,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:58,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 826 transitions. [2022-04-18 15:51:58,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.2) internal successors, (826), 5 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:58,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:58,059 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:58,059 INFO L186 Difference]: Start difference. First operand has 205 places, 218 transitions, 682 flow. Second operand 5 states and 826 transitions. [2022-04-18 15:51:58,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 193 transitions, 642 flow [2022-04-18 15:51:58,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 193 transitions, 554 flow, removed 28 selfloop flow, removed 9 redundant places. [2022-04-18 15:51:58,067 INFO L242 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2022-04-18 15:51:58,067 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2022-04-18 15:51:58,069 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -5 predicate places. [2022-04-18 15:51:58,069 INFO L478 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2022-04-18 15:51:58,070 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:58,072 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2022-04-18 15:51:58,072 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 19 remaining) [2022-04-18 15:51:58,073 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2022-04-18 15:51:58,074 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2022-04-18 15:51:58,080 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2022-04-18 15:51:58,080 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2022-04-18 15:51:58,080 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 15:51:58,084 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:58,089 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:51:58,089 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:51:58,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:51:58 BasicIcfg [2022-04-18 15:51:58,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:51:58,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:51:58,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:51:58,096 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:51:58,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:33" (3/4) ... [2022-04-18 15:51:58,099 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 15:51:58,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-04-18 15:51:58,104 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2022-04-18 15:51:58,105 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-04-18 15:51:58,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-04-18 15:51:58,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 15:51:58,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 15:51:58,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 15:51:58,138 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 15:51:58,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:51:58,139 INFO L158 Benchmark]: Toolchain (without parser) took 25315.77ms. Allocated memory was 104.9MB in the beginning and 10.7GB in the end (delta: 10.6GB). Free memory was 70.9MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-04-18 15:51:58,139 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 59.2MB in the beginning and 59.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:58,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.56ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 15:51:58,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.53ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 66.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:58,140 INFO L158 Benchmark]: Boogie Preprocessor took 30.49ms. Allocated memory is still 104.9MB. Free memory was 66.8MB in the beginning and 65.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:58,140 INFO L158 Benchmark]: RCFGBuilder took 479.77ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 65.1MB in the beginning and 104.5MB in the end (delta: -39.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-04-18 15:51:58,140 INFO L158 Benchmark]: TraceAbstraction took 24279.89ms. Allocated memory was 130.0MB in the beginning and 10.7GB in the end (delta: 10.5GB). Free memory was 104.0MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-04-18 15:51:58,140 INFO L158 Benchmark]: Witness Printer took 42.40ms. Allocated memory is still 10.7GB. Free memory was 9.2GB in the beginning and 9.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:51:58,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 59.2MB in the beginning and 59.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.56ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.53ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 66.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.49ms. Allocated memory is still 104.9MB. Free memory was 66.8MB in the beginning and 65.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.77ms. Allocated memory was 104.9MB in the beginning and 130.0MB in the end (delta: 25.2MB). Free memory was 65.1MB in the beginning and 104.5MB in the end (delta: -39.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 24279.89ms. Allocated memory was 130.0MB in the beginning and 10.7GB in the end (delta: 10.5GB). Free memory was 104.0MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 42.40ms. Allocated memory is still 10.7GB. Free memory was 9.2GB in the beginning and 9.2GB 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: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: 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 7 procedures, 291 locations, 19 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: 24.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 101 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=747occurred in iteration=6, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 541 ConstructedInterpolants, 0 QuantifiedInterpolants, 1288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 15:51:58,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE