./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c --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/weaver/unroll-cond-3.wvr.c -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 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:53,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:53,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:53,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:53,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:53,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:53,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:53,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:53,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:53,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:53,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:53,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:53,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:53,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:53,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:53,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:53,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:53,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:53,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:53,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:53,282 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:53,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:53,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:53,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:53,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:53,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:53,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:53,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:53,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:53,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:53,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:53,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:53,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:53,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:53,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:53,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:53,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:53,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:53,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:53,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:53,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:53,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:53,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:53,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:53,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:53,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:53,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:53,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:53,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:53,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:53,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:53,327 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:53,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:53,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:53,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:53,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:53,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:53,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:53,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:53,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:53,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:53,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:53,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:53,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:53,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:53,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:53,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:53,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:53,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:53,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:53,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:53,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:53,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade [2022-04-18 16:36:53,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:53,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:53,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:53,519 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:53,520 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:53,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2022-04-18 16:36:53,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b42246c75/37e8efd6cca04c2fa92f413c29f72950/FLAG3bf91e5b9 [2022-04-18 16:36:53,934 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:53,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2022-04-18 16:36:53,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b42246c75/37e8efd6cca04c2fa92f413c29f72950/FLAG3bf91e5b9 [2022-04-18 16:36:53,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b42246c75/37e8efd6cca04c2fa92f413c29f72950 [2022-04-18 16:36:53,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:53,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:53,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:53,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:53,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:53,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:53" (1/1) ... [2022-04-18 16:36:53,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798095c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:53, skipping insertion in model container [2022-04-18 16:36:53,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:53" (1/1) ... [2022-04-18 16:36:53,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:53,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:54,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c[2641,2654] [2022-04-18 16:36:54,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:54,136 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:54,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c[2641,2654] [2022-04-18 16:36:54,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:54,172 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:54,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54 WrapperNode [2022-04-18 16:36:54,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:54,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:54,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:54,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:54,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,219 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 345 [2022-04-18 16:36:54,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:54,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:54,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:54,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:54,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:54,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:54,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:54,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:54,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:54,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:54,312 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 16:36:54,375 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 16:36:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:54,397 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 16:36:54,469 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:54,471 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:54,931 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:54,938 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:54,939 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:54,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:54 BoogieIcfgContainer [2022-04-18 16:36:54,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:54,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:54,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:54,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:54,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:53" (1/3) ... [2022-04-18 16:36:54,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18861169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:54, skipping insertion in model container [2022-04-18 16:36:54,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (2/3) ... [2022-04-18 16:36:54,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18861169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:54, skipping insertion in model container [2022-04-18 16:36:54,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:54" (3/3) ... [2022-04-18 16:36:54,946 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2022-04-18 16:36:54,950 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:54,950 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:54,950 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-04-18 16:36:54,950 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:55,049 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:36:55,084 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:55,089 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 16:36:55,090 INFO L341 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2022-04-18 16:36:55,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 453 transitions, 922 flow [2022-04-18 16:36:55,220 INFO L129 PetriNetUnfolder]: 24/451 cut-off events. [2022-04-18 16:36:55,220 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:36:55,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 451 events. 24/451 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1136 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 317. Up to 2 conditions per place. [2022-04-18 16:36:55,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 436 places, 453 transitions, 922 flow [2022-04-18 16:36:55,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 433 transitions, 878 flow [2022-04-18 16:36:55,247 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2022-04-18 16:36:55,247 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:55,247 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:55,248 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] [2022-04-18 16:36:55,249 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:55,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1764078807, now seen corresponding path program 1 times [2022-04-18 16:36:55,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:55,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609185488] [2022-04-18 16:36:55,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:55,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:55,393 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 16:36:55,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:55,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609185488] [2022-04-18 16:36:55,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609185488] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:55,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:55,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901344827] [2022-04-18 16:36:55,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:55,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:55,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:55,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:55,440 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 453 [2022-04-18 16:36:55,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 433 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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 16:36:55,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:55,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 453 [2022-04-18 16:36:55,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:55,631 INFO L129 PetriNetUnfolder]: 94/1528 cut-off events. [2022-04-18 16:36:55,632 INFO L130 PetriNetUnfolder]: For 38/83 co-relation queries the response was YES. [2022-04-18 16:36:55,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1666 conditions, 1528 events. 94/1528 cut-off events. For 38/83 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 9886 event pairs, 39 based on Foata normal form. 32/1236 useless extension candidates. Maximal degree in co-relation 1471. Up to 112 conditions per place. [2022-04-18 16:36:55,643 INFO L132 encePairwiseOnDemand]: 438/453 looper letters, 19 selfloop transitions, 2 changer transitions 3/420 dead transitions. [2022-04-18 16:36:55,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 420 transitions, 894 flow [2022-04-18 16:36:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:55,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2022-04-18 16:36:55,659 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9455481972038263 [2022-04-18 16:36:55,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1285 transitions. [2022-04-18 16:36:55,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1285 transitions. [2022-04-18 16:36:55,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:55,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1285 transitions. [2022-04-18 16:36:55,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:36:55,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:55,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:55,682 INFO L186 Difference]: Start difference. First operand has 417 places, 433 transitions, 878 flow. Second operand 3 states and 1285 transitions. [2022-04-18 16:36:55,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 420 transitions, 894 flow [2022-04-18 16:36:55,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 420 transitions, 886 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:55,697 INFO L242 Difference]: Finished difference. Result has 414 places, 417 transitions, 842 flow [2022-04-18 16:36:55,704 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=414, PETRI_TRANSITIONS=417} [2022-04-18 16:36:55,707 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -3 predicate places. [2022-04-18 16:36:55,707 INFO L478 AbstractCegarLoop]: Abstraction has has 414 places, 417 transitions, 842 flow [2022-04-18 16:36:55,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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 16:36:55,708 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:55,709 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] [2022-04-18 16:36:55,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:55,709 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:55,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:55,713 INFO L85 PathProgramCache]: Analyzing trace with hash -491916375, now seen corresponding path program 1 times [2022-04-18 16:36:55,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:55,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381859458] [2022-04-18 16:36:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:55,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:55,791 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 16:36:55,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:55,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381859458] [2022-04-18 16:36:55,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381859458] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:55,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:55,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:55,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374160429] [2022-04-18 16:36:55,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:55,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:55,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:55,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:55,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:55,795 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 453 [2022-04-18 16:36:55,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 417 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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 16:36:55,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:55,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 453 [2022-04-18 16:36:55,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:56,059 INFO L129 PetriNetUnfolder]: 157/1816 cut-off events. [2022-04-18 16:36:56,059 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-04-18 16:36:56,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2033 conditions, 1816 events. 157/1816 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11665 event pairs, 63 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 2002. Up to 206 conditions per place. [2022-04-18 16:36:56,076 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 31 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-04-18 16:36:56,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 416 transitions, 906 flow [2022-04-18 16:36:56,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2022-04-18 16:36:56,079 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9190581309786607 [2022-04-18 16:36:56,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2022-04-18 16:36:56,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2022-04-18 16:36:56,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:56,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2022-04-18 16:36:56,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 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 16:36:56,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:56,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:56,085 INFO L186 Difference]: Start difference. First operand has 414 places, 417 transitions, 842 flow. Second operand 3 states and 1249 transitions. [2022-04-18 16:36:56,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 416 transitions, 906 flow [2022-04-18 16:36:56,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 416 transitions, 902 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:56,091 INFO L242 Difference]: Finished difference. Result has 410 places, 416 transitions, 840 flow [2022-04-18 16:36:56,091 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=410, PETRI_TRANSITIONS=416} [2022-04-18 16:36:56,092 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -7 predicate places. [2022-04-18 16:36:56,093 INFO L478 AbstractCegarLoop]: Abstraction has has 410 places, 416 transitions, 840 flow [2022-04-18 16:36:56,093 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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 16:36:56,093 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:56,094 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] [2022-04-18 16:36:56,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:56,094 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:56,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:56,095 INFO L85 PathProgramCache]: Analyzing trace with hash 792135515, now seen corresponding path program 1 times [2022-04-18 16:36:56,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:56,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004396188] [2022-04-18 16:36:56,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:56,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:56,146 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 16:36:56,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:56,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004396188] [2022-04-18 16:36:56,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004396188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:56,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:56,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:56,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633256723] [2022-04-18 16:36:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:56,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:56,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:56,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:56,151 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 453 [2022-04-18 16:36:56,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 416 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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 16:36:56,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:56,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 453 [2022-04-18 16:36:56,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:56,318 INFO L129 PetriNetUnfolder]: 104/1509 cut-off events. [2022-04-18 16:36:56,318 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-04-18 16:36:56,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1637 conditions, 1509 events. 104/1509 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9012 event pairs, 32 based on Foata normal form. 0/1224 useless extension candidates. Maximal degree in co-relation 1598. Up to 117 conditions per place. [2022-04-18 16:36:56,333 INFO L132 encePairwiseOnDemand]: 444/453 looper letters, 21 selfloop transitions, 1 changer transitions 0/408 dead transitions. [2022-04-18 16:36:56,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 408 transitions, 868 flow [2022-04-18 16:36:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1254 transitions. [2022-04-18 16:36:56,336 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9227373068432672 [2022-04-18 16:36:56,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1254 transitions. [2022-04-18 16:36:56,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1254 transitions. [2022-04-18 16:36:56,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:56,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1254 transitions. [2022-04-18 16:36:56,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 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 16:36:56,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:56,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:56,343 INFO L186 Difference]: Start difference. First operand has 410 places, 416 transitions, 840 flow. Second operand 3 states and 1254 transitions. [2022-04-18 16:36:56,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 408 transitions, 868 flow [2022-04-18 16:36:56,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 408 transitions, 864 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:56,348 INFO L242 Difference]: Finished difference. Result has 402 places, 408 transitions, 822 flow [2022-04-18 16:36:56,349 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=822, PETRI_PLACES=402, PETRI_TRANSITIONS=408} [2022-04-18 16:36:56,351 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -15 predicate places. [2022-04-18 16:36:56,351 INFO L478 AbstractCegarLoop]: Abstraction has has 402 places, 408 transitions, 822 flow [2022-04-18 16:36:56,352 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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 16:36:56,352 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:56,352 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] [2022-04-18 16:36:56,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:56,353 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:56,354 INFO L85 PathProgramCache]: Analyzing trace with hash -76131750, now seen corresponding path program 1 times [2022-04-18 16:36:56,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:56,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459192862] [2022-04-18 16:36:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:56,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:56,430 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 16:36:56,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:56,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459192862] [2022-04-18 16:36:56,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459192862] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:56,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:56,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:56,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987562637] [2022-04-18 16:36:56,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:56,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:56,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:56,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:56,438 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 453 [2022-04-18 16:36:56,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 408 transitions, 822 flow. Second operand has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 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 16:36:56,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:56,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 453 [2022-04-18 16:36:56,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:56,610 INFO L129 PetriNetUnfolder]: 149/1665 cut-off events. [2022-04-18 16:36:56,610 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-04-18 16:36:56,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 1665 events. 149/1665 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10340 event pairs, 63 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 1831. Up to 194 conditions per place. [2022-04-18 16:36:56,628 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 25 selfloop transitions, 2 changer transitions 0/407 dead transitions. [2022-04-18 16:36:56,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 407 transitions, 874 flow [2022-04-18 16:36:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1261 transitions. [2022-04-18 16:36:56,631 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.927888153053716 [2022-04-18 16:36:56,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1261 transitions. [2022-04-18 16:36:56,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1261 transitions. [2022-04-18 16:36:56,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:56,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1261 transitions. [2022-04-18 16:36:56,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 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 16:36:56,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:56,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:56,639 INFO L186 Difference]: Start difference. First operand has 402 places, 408 transitions, 822 flow. Second operand 3 states and 1261 transitions. [2022-04-18 16:36:56,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 407 transitions, 874 flow [2022-04-18 16:36:56,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 407 transitions, 873 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:56,645 INFO L242 Difference]: Finished difference. Result has 402 places, 407 transitions, 823 flow [2022-04-18 16:36:56,646 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=402, PETRI_TRANSITIONS=407} [2022-04-18 16:36:56,647 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -15 predicate places. [2022-04-18 16:36:56,650 INFO L478 AbstractCegarLoop]: Abstraction has has 402 places, 407 transitions, 823 flow [2022-04-18 16:36:56,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 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 16:36:56,651 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:56,651 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] [2022-04-18 16:36:56,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:56,652 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash -914124486, now seen corresponding path program 1 times [2022-04-18 16:36:56,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:56,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645857028] [2022-04-18 16:36:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:56,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:56,808 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 16:36:56,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:56,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645857028] [2022-04-18 16:36:56,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645857028] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:56,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:56,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:56,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270300283] [2022-04-18 16:36:56,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:56,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:56,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:56,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:56,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:56,812 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2022-04-18 16:36:56,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 407 transitions, 823 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 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 16:36:56,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:56,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2022-04-18 16:36:56,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:58,653 INFO L129 PetriNetUnfolder]: 3608/17633 cut-off events. [2022-04-18 16:36:58,654 INFO L130 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-04-18 16:36:58,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22590 conditions, 17633 events. 3608/17633 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 197637 event pairs, 2772 based on Foata normal form. 0/14037 useless extension candidates. Maximal degree in co-relation 22553. Up to 4939 conditions per place. [2022-04-18 16:36:58,768 INFO L132 encePairwiseOnDemand]: 447/453 looper letters, 63 selfloop transitions, 5 changer transitions 0/406 dead transitions. [2022-04-18 16:36:58,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 406 transitions, 957 flow [2022-04-18 16:36:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2289 transitions. [2022-04-18 16:36:58,772 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8421633554083885 [2022-04-18 16:36:58,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2289 transitions. [2022-04-18 16:36:58,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2289 transitions. [2022-04-18 16:36:58,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:58,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2289 transitions. [2022-04-18 16:36:58,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 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 16:36:58,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:36:58,782 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:36:58,782 INFO L186 Difference]: Start difference. First operand has 402 places, 407 transitions, 823 flow. Second operand 6 states and 2289 transitions. [2022-04-18 16:36:58,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 406 transitions, 957 flow [2022-04-18 16:36:58,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 406 transitions, 953 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:58,788 INFO L242 Difference]: Finished difference. Result has 404 places, 406 transitions, 827 flow [2022-04-18 16:36:58,788 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=827, PETRI_PLACES=404, PETRI_TRANSITIONS=406} [2022-04-18 16:36:58,790 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -13 predicate places. [2022-04-18 16:36:58,790 INFO L478 AbstractCegarLoop]: Abstraction has has 404 places, 406 transitions, 827 flow [2022-04-18 16:36:58,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 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 16:36:58,792 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:58,792 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] [2022-04-18 16:36:58,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:58,793 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:58,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:58,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1222076666, now seen corresponding path program 1 times [2022-04-18 16:36:58,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:58,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178297493] [2022-04-18 16:36:58,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:58,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:58,836 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 16:36:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:58,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178297493] [2022-04-18 16:36:58,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178297493] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:58,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:58,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:58,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119092562] [2022-04-18 16:36:58,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:58,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:58,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:58,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:58,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:58,839 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 453 [2022-04-18 16:36:58,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 406 transitions, 827 flow. Second operand has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 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 16:36:58,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:58,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 453 [2022-04-18 16:36:58,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:58,923 INFO L129 PetriNetUnfolder]: 63/1170 cut-off events. [2022-04-18 16:36:58,924 INFO L130 PetriNetUnfolder]: For 8/19 co-relation queries the response was YES. [2022-04-18 16:36:58,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1249 conditions, 1170 events. 63/1170 cut-off events. For 8/19 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6529 event pairs, 12 based on Foata normal form. 1/967 useless extension candidates. Maximal degree in co-relation 1231. Up to 62 conditions per place. [2022-04-18 16:36:58,932 INFO L132 encePairwiseOnDemand]: 447/453 looper letters, 15 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2022-04-18 16:36:58,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 405 transitions, 860 flow [2022-04-18 16:36:58,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:58,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1281 transitions. [2022-04-18 16:36:58,934 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9426048565121413 [2022-04-18 16:36:58,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1281 transitions. [2022-04-18 16:36:58,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1281 transitions. [2022-04-18 16:36:58,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:58,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1281 transitions. [2022-04-18 16:36:58,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 427.0) internal successors, (1281), 3 states have internal predecessors, (1281), 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 16:36:58,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:58,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:58,939 INFO L186 Difference]: Start difference. First operand has 404 places, 406 transitions, 827 flow. Second operand 3 states and 1281 transitions. [2022-04-18 16:36:58,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 405 transitions, 860 flow [2022-04-18 16:36:58,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 405 transitions, 850 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:58,945 INFO L242 Difference]: Finished difference. Result has 398 places, 404 transitions, 823 flow [2022-04-18 16:36:58,946 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=398, PETRI_TRANSITIONS=404} [2022-04-18 16:36:58,946 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -19 predicate places. [2022-04-18 16:36:58,946 INFO L478 AbstractCegarLoop]: Abstraction has has 398 places, 404 transitions, 823 flow [2022-04-18 16:36:58,947 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 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 16:36:58,947 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:58,947 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:58,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:58,947 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:58,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:58,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1550776646, now seen corresponding path program 1 times [2022-04-18 16:36:58,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:58,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549511403] [2022-04-18 16:36:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:58,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:58,971 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 16:36:58,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:58,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549511403] [2022-04-18 16:36:58,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549511403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:58,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:58,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:58,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508383665] [2022-04-18 16:36:58,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:58,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:58,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:58,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:58,975 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 453 [2022-04-18 16:36:58,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 404 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 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 16:36:58,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:58,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 453 [2022-04-18 16:36:58,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:59,062 INFO L129 PetriNetUnfolder]: 34/690 cut-off events. [2022-04-18 16:36:59,062 INFO L130 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-04-18 16:36:59,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 690 events. 34/690 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2871 event pairs, 3 based on Foata normal form. 1/589 useless extension candidates. Maximal degree in co-relation 715. Up to 21 conditions per place. [2022-04-18 16:36:59,067 INFO L132 encePairwiseOnDemand]: 446/453 looper letters, 13 selfloop transitions, 3 changer transitions 0/401 dead transitions. [2022-04-18 16:36:59,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 401 transitions, 850 flow [2022-04-18 16:36:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:59,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1280 transitions. [2022-04-18 16:36:59,070 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.94186902133922 [2022-04-18 16:36:59,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1280 transitions. [2022-04-18 16:36:59,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1280 transitions. [2022-04-18 16:36:59,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:59,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1280 transitions. [2022-04-18 16:36:59,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.6666666666667) internal successors, (1280), 3 states have internal predecessors, (1280), 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 16:36:59,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:59,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:59,075 INFO L186 Difference]: Start difference. First operand has 398 places, 404 transitions, 823 flow. Second operand 3 states and 1280 transitions. [2022-04-18 16:36:59,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 401 transitions, 850 flow [2022-04-18 16:36:59,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 401 transitions, 850 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:59,080 INFO L242 Difference]: Finished difference. Result has 396 places, 400 transitions, 821 flow [2022-04-18 16:36:59,080 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=396, PETRI_TRANSITIONS=400} [2022-04-18 16:36:59,081 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -21 predicate places. [2022-04-18 16:36:59,081 INFO L478 AbstractCegarLoop]: Abstraction has has 396 places, 400 transitions, 821 flow [2022-04-18 16:36:59,081 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 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 16:36:59,081 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:59,082 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] [2022-04-18 16:36:59,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:59,082 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1563848883, now seen corresponding path program 1 times [2022-04-18 16:36:59,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:59,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477923959] [2022-04-18 16:36:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:59,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:59,108 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 16:36:59,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:59,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477923959] [2022-04-18 16:36:59,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477923959] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:59,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:59,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680943216] [2022-04-18 16:36:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:59,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:59,111 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 453 [2022-04-18 16:36:59,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 400 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 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 16:36:59,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:59,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 453 [2022-04-18 16:36:59,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:59,211 INFO L129 PetriNetUnfolder]: 77/872 cut-off events. [2022-04-18 16:36:59,212 INFO L130 PetriNetUnfolder]: For 48/53 co-relation queries the response was YES. [2022-04-18 16:36:59,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 872 events. 77/872 cut-off events. For 48/53 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4748 event pairs, 15 based on Foata normal form. 2/778 useless extension candidates. Maximal degree in co-relation 1044. Up to 124 conditions per place. [2022-04-18 16:36:59,217 INFO L132 encePairwiseOnDemand]: 426/453 looper letters, 39 selfloop transitions, 10 changer transitions 5/385 dead transitions. [2022-04-18 16:36:59,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 385 transitions, 894 flow [2022-04-18 16:36:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:59,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:59,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2022-04-18 16:36:59,220 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8704930095658573 [2022-04-18 16:36:59,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2022-04-18 16:36:59,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2022-04-18 16:36:59,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:59,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2022-04-18 16:36:59,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 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 16:36:59,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:59,224 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:36:59,224 INFO L186 Difference]: Start difference. First operand has 396 places, 400 transitions, 821 flow. Second operand 3 states and 1183 transitions. [2022-04-18 16:36:59,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 385 transitions, 894 flow [2022-04-18 16:36:59,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 385 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:59,229 INFO L242 Difference]: Finished difference. Result has 380 places, 379 transitions, 792 flow [2022-04-18 16:36:59,229 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=792, PETRI_PLACES=380, PETRI_TRANSITIONS=379} [2022-04-18 16:36:59,230 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -37 predicate places. [2022-04-18 16:36:59,230 INFO L478 AbstractCegarLoop]: Abstraction has has 380 places, 379 transitions, 792 flow [2022-04-18 16:36:59,231 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 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 16:36:59,231 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:59,231 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, 1] [2022-04-18 16:36:59,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:59,231 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:36:59,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:59,232 INFO L85 PathProgramCache]: Analyzing trace with hash -282154071, now seen corresponding path program 1 times [2022-04-18 16:36:59,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:59,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824114922] [2022-04-18 16:36:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:59,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:59,290 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 16:36:59,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:59,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824114922] [2022-04-18 16:36:59,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824114922] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:59,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:59,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:59,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133075784] [2022-04-18 16:36:59,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:59,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:59,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:59,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:59,294 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 453 [2022-04-18 16:36:59,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 379 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 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 16:36:59,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:59,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 453 [2022-04-18 16:36:59,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,447 INFO L129 PetriNetUnfolder]: 3327/9966 cut-off events. [2022-04-18 16:37:00,447 INFO L130 PetriNetUnfolder]: For 1/5 co-relation queries the response was YES. [2022-04-18 16:37:00,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15363 conditions, 9966 events. 3327/9966 cut-off events. For 1/5 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 88172 event pairs, 794 based on Foata normal form. 3/8674 useless extension candidates. Maximal degree in co-relation 15323. Up to 1831 conditions per place. [2022-04-18 16:37:00,526 INFO L132 encePairwiseOnDemand]: 448/453 looper letters, 199 selfloop transitions, 4 changer transitions 0/522 dead transitions. [2022-04-18 16:37:00,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 522 transitions, 1484 flow [2022-04-18 16:37:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:00,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2454 transitions. [2022-04-18 16:37:00,531 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9028697571743929 [2022-04-18 16:37:00,531 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2454 transitions. [2022-04-18 16:37:00,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2454 transitions. [2022-04-18 16:37:00,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2454 transitions. [2022-04-18 16:37:00,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 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 16:37:00,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:00,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:00,538 INFO L186 Difference]: Start difference. First operand has 380 places, 379 transitions, 792 flow. Second operand 6 states and 2454 transitions. [2022-04-18 16:37:00,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 522 transitions, 1484 flow [2022-04-18 16:37:00,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 522 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:00,546 INFO L242 Difference]: Finished difference. Result has 377 places, 378 transitions, 778 flow [2022-04-18 16:37:00,546 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=778, PETRI_PLACES=377, PETRI_TRANSITIONS=378} [2022-04-18 16:37:00,547 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -40 predicate places. [2022-04-18 16:37:00,547 INFO L478 AbstractCegarLoop]: Abstraction has has 377 places, 378 transitions, 778 flow [2022-04-18 16:37:00,547 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 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 16:37:00,547 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,548 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, 1, 1, 1, 1] [2022-04-18 16:37:00,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:37:00,548 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash 139453766, now seen corresponding path program 1 times [2022-04-18 16:37:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945049305] [2022-04-18 16:37:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,569 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 16:37:00,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945049305] [2022-04-18 16:37:00,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945049305] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:00,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899732624] [2022-04-18 16:37:00,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:00,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:00,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:00,572 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 453 [2022-04-18 16:37:00,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 378 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 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 16:37:00,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 453 [2022-04-18 16:37:00,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,708 INFO L129 PetriNetUnfolder]: 104/1536 cut-off events. [2022-04-18 16:37:00,708 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-04-18 16:37:00,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1536 events. 104/1536 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9272 event pairs, 11 based on Foata normal form. 0/1371 useless extension candidates. Maximal degree in co-relation 1642. Up to 106 conditions per place. [2022-04-18 16:37:00,718 INFO L132 encePairwiseOnDemand]: 443/453 looper letters, 19 selfloop transitions, 4 changer transitions 0/378 dead transitions. [2022-04-18 16:37:00,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 378 transitions, 826 flow [2022-04-18 16:37:00,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1271 transitions. [2022-04-18 16:37:00,721 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9352465047829286 [2022-04-18 16:37:00,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1271 transitions. [2022-04-18 16:37:00,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1271 transitions. [2022-04-18 16:37:00,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1271 transitions. [2022-04-18 16:37:00,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.6666666666667) internal successors, (1271), 3 states have internal predecessors, (1271), 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 16:37:00,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:00,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:00,726 INFO L186 Difference]: Start difference. First operand has 377 places, 378 transitions, 778 flow. Second operand 3 states and 1271 transitions. [2022-04-18 16:37:00,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 378 transitions, 826 flow [2022-04-18 16:37:00,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 378 transitions, 819 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:37:00,730 INFO L242 Difference]: Finished difference. Result has 370 places, 376 transitions, 787 flow [2022-04-18 16:37:00,730 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=787, PETRI_PLACES=370, PETRI_TRANSITIONS=376} [2022-04-18 16:37:00,731 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -47 predicate places. [2022-04-18 16:37:00,731 INFO L478 AbstractCegarLoop]: Abstraction has has 370 places, 376 transitions, 787 flow [2022-04-18 16:37:00,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 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 16:37:00,732 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:00,732 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:37:00,732 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:00,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,733 INFO L85 PathProgramCache]: Analyzing trace with hash -443232020, now seen corresponding path program 1 times [2022-04-18 16:37:00,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704794208] [2022-04-18 16:37:00,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,771 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 16:37:00,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704794208] [2022-04-18 16:37:00,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704794208] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:00,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943382574] [2022-04-18 16:37:00,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,772 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:00,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:00,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:00,774 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 453 [2022-04-18 16:37:00,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 376 transitions, 787 flow. Second operand has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 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 16:37:00,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 453 [2022-04-18 16:37:00,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,989 INFO L129 PetriNetUnfolder]: 133/2434 cut-off events. [2022-04-18 16:37:00,989 INFO L130 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-04-18 16:37:00,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 2434 events. 133/2434 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 17205 event pairs, 14 based on Foata normal form. 1/2178 useless extension candidates. Maximal degree in co-relation 2635. Up to 66 conditions per place. [2022-04-18 16:37:01,002 INFO L132 encePairwiseOnDemand]: 447/453 looper letters, 29 selfloop transitions, 6 changer transitions 0/393 dead transitions. [2022-04-18 16:37:01,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 393 transitions, 895 flow [2022-04-18 16:37:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2131 transitions. [2022-04-18 16:37:01,005 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9408388520971303 [2022-04-18 16:37:01,005 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2131 transitions. [2022-04-18 16:37:01,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2131 transitions. [2022-04-18 16:37:01,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:01,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2131 transitions. [2022-04-18 16:37:01,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 426.2) internal successors, (2131), 5 states have internal predecessors, (2131), 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 16:37:01,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 453.0) internal successors, (2718), 6 states have internal predecessors, (2718), 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 16:37:01,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 453.0) internal successors, (2718), 6 states have internal predecessors, (2718), 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 16:37:01,012 INFO L186 Difference]: Start difference. First operand has 370 places, 376 transitions, 787 flow. Second operand 5 states and 2131 transitions. [2022-04-18 16:37:01,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 393 transitions, 895 flow [2022-04-18 16:37:01,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 393 transitions, 895 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:01,016 INFO L242 Difference]: Finished difference. Result has 377 places, 380 transitions, 825 flow [2022-04-18 16:37:01,017 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=825, PETRI_PLACES=377, PETRI_TRANSITIONS=380} [2022-04-18 16:37:01,017 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -40 predicate places. [2022-04-18 16:37:01,017 INFO L478 AbstractCegarLoop]: Abstraction has has 377 places, 380 transitions, 825 flow [2022-04-18 16:37:01,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 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 16:37:01,018 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:01,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:01,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:37:01,018 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:01,018 INFO L85 PathProgramCache]: Analyzing trace with hash -174564307, now seen corresponding path program 1 times [2022-04-18 16:37:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:01,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736689539] [2022-04-18 16:37:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:01,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:01,076 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 16:37:01,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:01,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736689539] [2022-04-18 16:37:01,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736689539] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:01,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:01,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:01,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992909018] [2022-04-18 16:37:01,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:01,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:01,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:01,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:01,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:01,080 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 453 [2022-04-18 16:37:01,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 380 transitions, 825 flow. Second operand has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 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 16:37:01,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:01,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 453 [2022-04-18 16:37:01,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:04,015 INFO L129 PetriNetUnfolder]: 6304/27737 cut-off events. [2022-04-18 16:37:04,015 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-04-18 16:37:04,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37893 conditions, 27737 events. 6304/27737 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 314653 event pairs, 4881 based on Foata normal form. 0/24580 useless extension candidates. Maximal degree in co-relation 37848. Up to 8183 conditions per place. [2022-04-18 16:37:04,197 INFO L132 encePairwiseOnDemand]: 448/453 looper letters, 174 selfloop transitions, 4 changer transitions 0/499 dead transitions. [2022-04-18 16:37:04,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 499 transitions, 1419 flow [2022-04-18 16:37:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:04,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2429 transitions. [2022-04-18 16:37:04,202 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8936718175128772 [2022-04-18 16:37:04,202 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2429 transitions. [2022-04-18 16:37:04,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2429 transitions. [2022-04-18 16:37:04,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:04,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2429 transitions. [2022-04-18 16:37:04,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.8333333333333) internal successors, (2429), 6 states have internal predecessors, (2429), 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 16:37:04,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:04,317 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:04,317 INFO L186 Difference]: Start difference. First operand has 377 places, 380 transitions, 825 flow. Second operand 6 states and 2429 transitions. [2022-04-18 16:37:04,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 499 transitions, 1419 flow [2022-04-18 16:37:04,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 499 transitions, 1419 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:04,325 INFO L242 Difference]: Finished difference. Result has 381 places, 379 transitions, 831 flow [2022-04-18 16:37:04,326 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=831, PETRI_PLACES=381, PETRI_TRANSITIONS=379} [2022-04-18 16:37:04,327 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -36 predicate places. [2022-04-18 16:37:04,327 INFO L478 AbstractCegarLoop]: Abstraction has has 381 places, 379 transitions, 831 flow [2022-04-18 16:37:04,328 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 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 16:37:04,328 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:04,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:04,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:37:04,328 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:04,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:04,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1716155398, now seen corresponding path program 1 times [2022-04-18 16:37:04,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:04,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218154982] [2022-04-18 16:37:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:04,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:04,417 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 16:37:04,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:04,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218154982] [2022-04-18 16:37:04,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218154982] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:04,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:04,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:04,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374978081] [2022-04-18 16:37:04,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:04,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:04,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:04,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:04,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:04,421 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 453 [2022-04-18 16:37:04,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 379 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 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 16:37:04,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:04,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 453 [2022-04-18 16:37:04,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:07,516 INFO L129 PetriNetUnfolder]: 9028/29194 cut-off events. [2022-04-18 16:37:07,516 INFO L130 PetriNetUnfolder]: For 2720/2720 co-relation queries the response was YES. [2022-04-18 16:37:07,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46510 conditions, 29194 events. 9028/29194 cut-off events. For 2720/2720 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 310623 event pairs, 3652 based on Foata normal form. 0/26493 useless extension candidates. Maximal degree in co-relation 46464. Up to 6934 conditions per place. [2022-04-18 16:37:07,689 INFO L132 encePairwiseOnDemand]: 447/453 looper letters, 226 selfloop transitions, 6 changer transitions 0/542 dead transitions. [2022-04-18 16:37:07,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 542 transitions, 1629 flow [2022-04-18 16:37:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2438 transitions. [2022-04-18 16:37:07,693 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8969830757910228 [2022-04-18 16:37:07,694 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2438 transitions. [2022-04-18 16:37:07,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2438 transitions. [2022-04-18 16:37:07,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:07,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2438 transitions. [2022-04-18 16:37:07,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 406.3333333333333) internal successors, (2438), 6 states have internal predecessors, (2438), 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 16:37:07,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:07,701 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:07,701 INFO L186 Difference]: Start difference. First operand has 381 places, 379 transitions, 831 flow. Second operand 6 states and 2438 transitions. [2022-04-18 16:37:07,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 542 transitions, 1629 flow [2022-04-18 16:37:07,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 542 transitions, 1622 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:37:07,709 INFO L242 Difference]: Finished difference. Result has 381 places, 378 transitions, 834 flow [2022-04-18 16:37:07,710 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=834, PETRI_PLACES=381, PETRI_TRANSITIONS=378} [2022-04-18 16:37:07,710 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -36 predicate places. [2022-04-18 16:37:07,710 INFO L478 AbstractCegarLoop]: Abstraction has has 381 places, 378 transitions, 834 flow [2022-04-18 16:37:07,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 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 16:37:07,711 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:07,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:07,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:37:07,712 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:07,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash -447237903, now seen corresponding path program 1 times [2022-04-18 16:37:07,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:07,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484134375] [2022-04-18 16:37:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:07,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:07,743 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 16:37:07,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:07,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484134375] [2022-04-18 16:37:07,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484134375] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:07,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:07,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:07,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184748333] [2022-04-18 16:37:07,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:07,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:07,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:07,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:07,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:07,747 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2022-04-18 16:37:07,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 378 transitions, 834 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 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 16:37:07,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:07,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2022-04-18 16:37:07,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:08,126 INFO L129 PetriNetUnfolder]: 250/2317 cut-off events. [2022-04-18 16:37:08,127 INFO L130 PetriNetUnfolder]: For 170/173 co-relation queries the response was YES. [2022-04-18 16:37:08,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3169 conditions, 2317 events. 250/2317 cut-off events. For 170/173 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 16636 event pairs, 60 based on Foata normal form. 1/2114 useless extension candidates. Maximal degree in co-relation 3124. Up to 433 conditions per place. [2022-04-18 16:37:08,138 INFO L132 encePairwiseOnDemand]: 445/453 looper letters, 86 selfloop transitions, 8 changer transitions 0/414 dead transitions. [2022-04-18 16:37:08,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 414 transitions, 1097 flow [2022-04-18 16:37:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1990 transitions. [2022-04-18 16:37:08,141 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8785871964679912 [2022-04-18 16:37:08,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1990 transitions. [2022-04-18 16:37:08,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1990 transitions. [2022-04-18 16:37:08,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:08,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1990 transitions. [2022-04-18 16:37:08,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 398.0) internal successors, (1990), 5 states have internal predecessors, (1990), 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 16:37:08,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 453.0) internal successors, (2718), 6 states have internal predecessors, (2718), 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 16:37:08,147 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 453.0) internal successors, (2718), 6 states have internal predecessors, (2718), 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 16:37:08,147 INFO L186 Difference]: Start difference. First operand has 381 places, 378 transitions, 834 flow. Second operand 5 states and 1990 transitions. [2022-04-18 16:37:08,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 414 transitions, 1097 flow [2022-04-18 16:37:08,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 414 transitions, 1085 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:08,152 INFO L242 Difference]: Finished difference. Result has 383 places, 384 transitions, 876 flow [2022-04-18 16:37:08,153 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=876, PETRI_PLACES=383, PETRI_TRANSITIONS=384} [2022-04-18 16:37:08,153 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -34 predicate places. [2022-04-18 16:37:08,153 INFO L478 AbstractCegarLoop]: Abstraction has has 383 places, 384 transitions, 876 flow [2022-04-18 16:37:08,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 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 16:37:08,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:08,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:08,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:37:08,154 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:08,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:08,155 INFO L85 PathProgramCache]: Analyzing trace with hash 631613417, now seen corresponding path program 1 times [2022-04-18 16:37:08,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:08,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879482620] [2022-04-18 16:37:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:08,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:08,209 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 16:37:08,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:08,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879482620] [2022-04-18 16:37:08,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879482620] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:08,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:08,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:08,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792666385] [2022-04-18 16:37:08,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:08,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:08,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:08,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:08,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:08,212 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2022-04-18 16:37:08,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 384 transitions, 876 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 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 16:37:08,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:08,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2022-04-18 16:37:08,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:08,473 INFO L129 PetriNetUnfolder]: 247/2318 cut-off events. [2022-04-18 16:37:08,474 INFO L130 PetriNetUnfolder]: For 238/240 co-relation queries the response was YES. [2022-04-18 16:37:08,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3242 conditions, 2318 events. 247/2318 cut-off events. For 238/240 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 16799 event pairs, 62 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 3193. Up to 433 conditions per place. [2022-04-18 16:37:08,491 INFO L132 encePairwiseOnDemand]: 445/453 looper letters, 86 selfloop transitions, 8 changer transitions 0/415 dead transitions. [2022-04-18 16:37:08,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 415 transitions, 1129 flow [2022-04-18 16:37:08,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1990 transitions. [2022-04-18 16:37:08,499 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8785871964679912 [2022-04-18 16:37:08,499 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1990 transitions. [2022-04-18 16:37:08,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1990 transitions. [2022-04-18 16:37:08,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:08,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1990 transitions. [2022-04-18 16:37:08,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 398.0) internal successors, (1990), 5 states have internal predecessors, (1990), 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 16:37:08,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 453.0) internal successors, (2718), 6 states have internal predecessors, (2718), 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 16:37:08,511 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 453.0) internal successors, (2718), 6 states have internal predecessors, (2718), 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 16:37:08,511 INFO L186 Difference]: Start difference. First operand has 383 places, 384 transitions, 876 flow. Second operand 5 states and 1990 transitions. [2022-04-18 16:37:08,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 415 transitions, 1129 flow [2022-04-18 16:37:08,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 415 transitions, 1129 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:08,517 INFO L242 Difference]: Finished difference. Result has 390 places, 387 transitions, 918 flow [2022-04-18 16:37:08,517 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=918, PETRI_PLACES=390, PETRI_TRANSITIONS=387} [2022-04-18 16:37:08,518 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -27 predicate places. [2022-04-18 16:37:08,518 INFO L478 AbstractCegarLoop]: Abstraction has has 390 places, 387 transitions, 918 flow [2022-04-18 16:37:08,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 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 16:37:08,519 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:08,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:08,519 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:37:08,519 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1774230903, now seen corresponding path program 1 times [2022-04-18 16:37:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:08,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737855048] [2022-04-18 16:37:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:08,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:08,548 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 16:37:08,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:08,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737855048] [2022-04-18 16:37:08,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737855048] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:08,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:08,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:08,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627706535] [2022-04-18 16:37:08,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:08,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:08,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:08,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:08,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:08,552 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 453 [2022-04-18 16:37:08,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 387 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 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 16:37:08,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:08,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 453 [2022-04-18 16:37:08,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:08,697 INFO L129 PetriNetUnfolder]: 87/1602 cut-off events. [2022-04-18 16:37:08,697 INFO L130 PetriNetUnfolder]: For 109/111 co-relation queries the response was YES. [2022-04-18 16:37:08,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 1602 events. 87/1602 cut-off events. For 109/111 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8471 event pairs, 22 based on Foata normal form. 0/1470 useless extension candidates. Maximal degree in co-relation 1917. Up to 71 conditions per place. [2022-04-18 16:37:08,709 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 12 selfloop transitions, 2 changer transitions 0/387 dead transitions. [2022-04-18 16:37:08,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 387 transitions, 947 flow [2022-04-18 16:37:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:08,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-04-18 16:37:08,712 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9337748344370861 [2022-04-18 16:37:08,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-04-18 16:37:08,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-04-18 16:37:08,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:08,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-04-18 16:37:08,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 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 16:37:08,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:08,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:08,718 INFO L186 Difference]: Start difference. First operand has 390 places, 387 transitions, 918 flow. Second operand 3 states and 1269 transitions. [2022-04-18 16:37:08,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 387 transitions, 947 flow [2022-04-18 16:37:08,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 387 transitions, 947 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:08,731 INFO L242 Difference]: Finished difference. Result has 391 places, 386 transitions, 920 flow [2022-04-18 16:37:08,732 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=391, PETRI_TRANSITIONS=386} [2022-04-18 16:37:08,732 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -26 predicate places. [2022-04-18 16:37:08,732 INFO L478 AbstractCegarLoop]: Abstraction has has 391 places, 386 transitions, 920 flow [2022-04-18 16:37:08,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 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 16:37:08,733 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:08,733 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, 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 16:37:08,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:37:08,733 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1291320684, now seen corresponding path program 1 times [2022-04-18 16:37:08,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:08,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431690604] [2022-04-18 16:37:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:08,802 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 16:37:08,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:08,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431690604] [2022-04-18 16:37:08,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431690604] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:08,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:08,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:08,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978033922] [2022-04-18 16:37:08,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:08,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:08,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:08,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:08,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:08,806 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 453 [2022-04-18 16:37:08,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 386 transitions, 920 flow. Second operand has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 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 16:37:08,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:08,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 453 [2022-04-18 16:37:08,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:12,955 INFO L129 PetriNetUnfolder]: 12174/39052 cut-off events. [2022-04-18 16:37:12,955 INFO L130 PetriNetUnfolder]: For 4249/4249 co-relation queries the response was YES. [2022-04-18 16:37:13,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63758 conditions, 39052 events. 12174/39052 cut-off events. For 4249/4249 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 413879 event pairs, 4133 based on Foata normal form. 0/36442 useless extension candidates. Maximal degree in co-relation 63702. Up to 7755 conditions per place. [2022-04-18 16:37:13,248 INFO L132 encePairwiseOnDemand]: 423/453 looper letters, 119 selfloop transitions, 28 changer transitions 0/449 dead transitions. [2022-04-18 16:37:13,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 449 transitions, 1352 flow [2022-04-18 16:37:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:13,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2281 transitions. [2022-04-18 16:37:13,252 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8392200147167035 [2022-04-18 16:37:13,252 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2281 transitions. [2022-04-18 16:37:13,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2281 transitions. [2022-04-18 16:37:13,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:13,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2281 transitions. [2022-04-18 16:37:13,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.1666666666667) internal successors, (2281), 6 states have internal predecessors, (2281), 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 16:37:13,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:13,259 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 453.0) internal successors, (3171), 7 states have internal predecessors, (3171), 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 16:37:13,260 INFO L186 Difference]: Start difference. First operand has 391 places, 386 transitions, 920 flow. Second operand 6 states and 2281 transitions. [2022-04-18 16:37:13,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 449 transitions, 1352 flow [2022-04-18 16:37:13,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 449 transitions, 1348 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:13,269 INFO L242 Difference]: Finished difference. Result has 389 places, 381 transitions, 962 flow [2022-04-18 16:37:13,269 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=389, PETRI_TRANSITIONS=381} [2022-04-18 16:37:13,269 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -28 predicate places. [2022-04-18 16:37:13,270 INFO L478 AbstractCegarLoop]: Abstraction has has 389 places, 381 transitions, 962 flow [2022-04-18 16:37:13,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 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 16:37:13,270 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:13,270 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, 1, 1, 1, 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 16:37:13,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:37:13,271 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash 362025628, now seen corresponding path program 1 times [2022-04-18 16:37:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:13,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617777415] [2022-04-18 16:37:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:13,289 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 16:37:13,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:13,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617777415] [2022-04-18 16:37:13,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617777415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:13,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:13,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:13,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896650337] [2022-04-18 16:37:13,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:13,290 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:13,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:13,292 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2022-04-18 16:37:13,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 381 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 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 16:37:13,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:13,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2022-04-18 16:37:13,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:13,502 INFO L129 PetriNetUnfolder]: 219/2216 cut-off events. [2022-04-18 16:37:13,503 INFO L130 PetriNetUnfolder]: For 370/374 co-relation queries the response was YES. [2022-04-18 16:37:13,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3297 conditions, 2216 events. 219/2216 cut-off events. For 370/374 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 15638 event pairs, 132 based on Foata normal form. 0/2083 useless extension candidates. Maximal degree in co-relation 3243. Up to 489 conditions per place. [2022-04-18 16:37:13,516 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 48 selfloop transitions, 2 changer transitions 0/381 dead transitions. [2022-04-18 16:37:13,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 381 transitions, 1063 flow [2022-04-18 16:37:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:13,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2022-04-18 16:37:13,518 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8543046357615894 [2022-04-18 16:37:13,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2022-04-18 16:37:13,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2022-04-18 16:37:13,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:13,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2022-04-18 16:37:13,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 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 16:37:13,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:13,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:13,522 INFO L186 Difference]: Start difference. First operand has 389 places, 381 transitions, 962 flow. Second operand 3 states and 1161 transitions. [2022-04-18 16:37:13,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 381 transitions, 1063 flow [2022-04-18 16:37:13,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 381 transitions, 1007 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:13,528 INFO L242 Difference]: Finished difference. Result has 385 places, 380 transitions, 908 flow [2022-04-18 16:37:13,528 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=385, PETRI_TRANSITIONS=380} [2022-04-18 16:37:13,528 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -32 predicate places. [2022-04-18 16:37:13,528 INFO L478 AbstractCegarLoop]: Abstraction has has 385 places, 380 transitions, 908 flow [2022-04-18 16:37:13,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 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 16:37:13,529 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:13,529 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, 1, 1, 1, 1, 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 16:37:13,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:37:13,529 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err37ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:13,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:13,530 INFO L85 PathProgramCache]: Analyzing trace with hash 88208540, now seen corresponding path program 1 times [2022-04-18 16:37:13,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:13,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795958619] [2022-04-18 16:37:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:13,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:13,549 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 16:37:13,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:13,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795958619] [2022-04-18 16:37:13,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795958619] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:13,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:13,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:13,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999681347] [2022-04-18 16:37:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:13,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:13,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:13,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:13,552 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2022-04-18 16:37:13,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 380 transitions, 908 flow. Second operand has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 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 16:37:13,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:13,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2022-04-18 16:37:13,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:13,761 INFO L129 PetriNetUnfolder]: 217/2208 cut-off events. [2022-04-18 16:37:13,761 INFO L130 PetriNetUnfolder]: For 284/288 co-relation queries the response was YES. [2022-04-18 16:37:13,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3053 conditions, 2208 events. 217/2208 cut-off events. For 284/288 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 15488 event pairs, 130 based on Foata normal form. 0/2081 useless extension candidates. Maximal degree in co-relation 2999. Up to 481 conditions per place. [2022-04-18 16:37:13,774 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 46 selfloop transitions, 2 changer transitions 1/380 dead transitions. [2022-04-18 16:37:13,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 380 transitions, 1007 flow [2022-04-18 16:37:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1160 transitions. [2022-04-18 16:37:13,777 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8535688005886681 [2022-04-18 16:37:13,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1160 transitions. [2022-04-18 16:37:13,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1160 transitions. [2022-04-18 16:37:13,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:13,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1160 transitions. [2022-04-18 16:37:13,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 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 16:37:13,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:13,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:13,782 INFO L186 Difference]: Start difference. First operand has 385 places, 380 transitions, 908 flow. Second operand 3 states and 1160 transitions. [2022-04-18 16:37:13,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 380 transitions, 1007 flow [2022-04-18 16:37:13,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 380 transitions, 1003 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:13,788 INFO L242 Difference]: Finished difference. Result has 384 places, 379 transitions, 906 flow [2022-04-18 16:37:13,788 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=384, PETRI_TRANSITIONS=379} [2022-04-18 16:37:13,788 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -33 predicate places. [2022-04-18 16:37:13,788 INFO L478 AbstractCegarLoop]: Abstraction has has 384 places, 379 transitions, 906 flow [2022-04-18 16:37:13,789 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 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 16:37:13,789 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:13,789 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, 1, 1, 1, 1, 1, 1, 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 16:37:13,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:37:13,789 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err29ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash -628113814, now seen corresponding path program 1 times [2022-04-18 16:37:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065781452] [2022-04-18 16:37:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:13,825 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 16:37:13,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:13,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065781452] [2022-04-18 16:37:13,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065781452] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:13,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:13,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:13,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296273184] [2022-04-18 16:37:13,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:13,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:13,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:13,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:13,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:13,828 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2022-04-18 16:37:13,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 379 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 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 16:37:13,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:13,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2022-04-18 16:37:13,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:14,113 INFO L129 PetriNetUnfolder]: 215/2200 cut-off events. [2022-04-18 16:37:14,114 INFO L130 PetriNetUnfolder]: For 282/286 co-relation queries the response was YES. [2022-04-18 16:37:14,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3037 conditions, 2200 events. 215/2200 cut-off events. For 282/286 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 15421 event pairs, 128 based on Foata normal form. 0/2079 useless extension candidates. Maximal degree in co-relation 2983. Up to 473 conditions per place. [2022-04-18 16:37:14,124 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 45 selfloop transitions, 2 changer transitions 1/379 dead transitions. [2022-04-18 16:37:14,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 379 transitions, 1003 flow [2022-04-18 16:37:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2022-04-18 16:37:14,126 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8528329654157468 [2022-04-18 16:37:14,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1159 transitions. [2022-04-18 16:37:14,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1159 transitions. [2022-04-18 16:37:14,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:14,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1159 transitions. [2022-04-18 16:37:14,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 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 16:37:14,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:14,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:14,130 INFO L186 Difference]: Start difference. First operand has 384 places, 379 transitions, 906 flow. Second operand 3 states and 1159 transitions. [2022-04-18 16:37:14,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 379 transitions, 1003 flow [2022-04-18 16:37:14,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 379 transitions, 999 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:14,135 INFO L242 Difference]: Finished difference. Result has 383 places, 378 transitions, 904 flow [2022-04-18 16:37:14,135 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=383, PETRI_TRANSITIONS=378} [2022-04-18 16:37:14,135 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -34 predicate places. [2022-04-18 16:37:14,136 INFO L478 AbstractCegarLoop]: Abstraction has has 383 places, 378 transitions, 904 flow [2022-04-18 16:37:14,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 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 16:37:14,136 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:14,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:14,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:37:14,137 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:14,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:14,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1332022693, now seen corresponding path program 1 times [2022-04-18 16:37:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:14,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085732690] [2022-04-18 16:37:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:14,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:14,160 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 16:37:14,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:14,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085732690] [2022-04-18 16:37:14,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085732690] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:14,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:14,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:14,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366408078] [2022-04-18 16:37:14,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:14,162 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:14,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:14,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:14,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:14,163 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2022-04-18 16:37:14,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 378 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 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 16:37:14,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:14,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2022-04-18 16:37:14,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:14,411 INFO L129 PetriNetUnfolder]: 213/2192 cut-off events. [2022-04-18 16:37:14,412 INFO L130 PetriNetUnfolder]: For 280/284 co-relation queries the response was YES. [2022-04-18 16:37:14,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3021 conditions, 2192 events. 213/2192 cut-off events. For 280/284 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 15318 event pairs, 126 based on Foata normal form. 0/2077 useless extension candidates. Maximal degree in co-relation 2967. Up to 465 conditions per place. [2022-04-18 16:37:14,425 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 45 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2022-04-18 16:37:14,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 378 transitions, 999 flow [2022-04-18 16:37:14,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-04-18 16:37:14,428 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8520971302428256 [2022-04-18 16:37:14,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-04-18 16:37:14,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-04-18 16:37:14,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:14,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-04-18 16:37:14,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 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 16:37:14,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:14,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:14,431 INFO L186 Difference]: Start difference. First operand has 383 places, 378 transitions, 904 flow. Second operand 3 states and 1158 transitions. [2022-04-18 16:37:14,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 378 transitions, 999 flow [2022-04-18 16:37:14,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 378 transitions, 995 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:14,436 INFO L242 Difference]: Finished difference. Result has 382 places, 377 transitions, 902 flow [2022-04-18 16:37:14,437 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=382, PETRI_TRANSITIONS=377} [2022-04-18 16:37:14,437 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -35 predicate places. [2022-04-18 16:37:14,437 INFO L478 AbstractCegarLoop]: Abstraction has has 382 places, 377 transitions, 902 flow [2022-04-18 16:37:14,437 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 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 16:37:14,438 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:14,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:14,438 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:37:14,438 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2022-04-18 16:37:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:14,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2026751086, now seen corresponding path program 1 times [2022-04-18 16:37:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:14,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319968857] [2022-04-18 16:37:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:14,466 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 16:37:14,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:14,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319968857] [2022-04-18 16:37:14,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319968857] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:14,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:14,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47121670] [2022-04-18 16:37:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:14,467 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:14,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:14,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:14,468 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2022-04-18 16:37:14,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 377 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 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 16:37:14,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:14,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2022-04-18 16:37:14,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:14,709 INFO L129 PetriNetUnfolder]: 211/2184 cut-off events. [2022-04-18 16:37:14,709 INFO L130 PetriNetUnfolder]: For 278/282 co-relation queries the response was YES. [2022-04-18 16:37:14,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3005 conditions, 2184 events. 211/2184 cut-off events. For 278/282 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 15204 event pairs, 124 based on Foata normal form. 0/2075 useless extension candidates. Maximal degree in co-relation 2951. Up to 457 conditions per place. [2022-04-18 16:37:14,721 INFO L132 encePairwiseOnDemand]: 450/453 looper letters, 0 selfloop transitions, 0 changer transitions 377/377 dead transitions. [2022-04-18 16:37:14,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 377 transitions, 995 flow [2022-04-18 16:37:14,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:14,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1157 transitions. [2022-04-18 16:37:14,723 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8513612950699043 [2022-04-18 16:37:14,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1157 transitions. [2022-04-18 16:37:14,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1157 transitions. [2022-04-18 16:37:14,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:14,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1157 transitions. [2022-04-18 16:37:14,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 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 16:37:14,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:14,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 453.0) internal successors, (1812), 4 states have internal predecessors, (1812), 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 16:37:14,727 INFO L186 Difference]: Start difference. First operand has 382 places, 377 transitions, 902 flow. Second operand 3 states and 1157 transitions. [2022-04-18 16:37:14,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 377 transitions, 995 flow [2022-04-18 16:37:14,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 377 transitions, 991 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:14,731 INFO L242 Difference]: Finished difference. Result has 381 places, 0 transitions, 0 flow [2022-04-18 16:37:14,731 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=381, PETRI_TRANSITIONS=0} [2022-04-18 16:37:14,731 INFO L335 CegarLoopForPetriNet]: 417 programPoint places, -36 predicate places. [2022-04-18 16:37:14,731 INFO L478 AbstractCegarLoop]: Abstraction has has 381 places, 0 transitions, 0 flow [2022-04-18 16:37:14,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 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 16:37:14,733 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (103 of 104 remaining) [2022-04-18 16:37:14,734 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (102 of 104 remaining) [2022-04-18 16:37:14,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (101 of 104 remaining) [2022-04-18 16:37:14,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (100 of 104 remaining) [2022-04-18 16:37:14,737 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (99 of 104 remaining) [2022-04-18 16:37:14,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (98 of 104 remaining) [2022-04-18 16:37:14,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (97 of 104 remaining) [2022-04-18 16:37:14,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (96 of 104 remaining) [2022-04-18 16:37:14,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (95 of 104 remaining) [2022-04-18 16:37:14,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (94 of 104 remaining) [2022-04-18 16:37:14,738 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (93 of 104 remaining) [2022-04-18 16:37:14,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (92 of 104 remaining) [2022-04-18 16:37:14,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (91 of 104 remaining) [2022-04-18 16:37:14,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (90 of 104 remaining) [2022-04-18 16:37:14,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (89 of 104 remaining) [2022-04-18 16:37:14,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (88 of 104 remaining) [2022-04-18 16:37:14,739 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (87 of 104 remaining) [2022-04-18 16:37:14,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (86 of 104 remaining) [2022-04-18 16:37:14,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (85 of 104 remaining) [2022-04-18 16:37:14,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (84 of 104 remaining) [2022-04-18 16:37:14,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (83 of 104 remaining) [2022-04-18 16:37:14,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (82 of 104 remaining) [2022-04-18 16:37:14,740 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (81 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (80 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (79 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (78 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (77 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (76 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err36ASSERT_VIOLATIONDATA_RACE (75 of 104 remaining) [2022-04-18 16:37:14,741 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (74 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (73 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err37ASSERT_VIOLATIONDATA_RACE (72 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (71 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (70 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (69 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (68 of 104 remaining) [2022-04-18 16:37:14,742 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (67 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (66 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (65 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (64 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (63 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (62 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (61 of 104 remaining) [2022-04-18 16:37:14,743 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (60 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (59 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (58 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 104 remaining) [2022-04-18 16:37:14,744 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (53 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (51 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (50 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (49 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (48 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 104 remaining) [2022-04-18 16:37:14,745 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (45 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (44 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (43 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (42 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (41 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (40 of 104 remaining) [2022-04-18 16:37:14,746 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (39 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (38 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (37 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (36 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (35 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (34 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (33 of 104 remaining) [2022-04-18 16:37:14,747 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (32 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (30 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (28 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (27 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (26 of 104 remaining) [2022-04-18 16:37:14,748 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (25 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (24 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (23 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (22 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (21 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (20 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (19 of 104 remaining) [2022-04-18 16:37:14,749 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (18 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err36ASSERT_VIOLATIONDATA_RACE (17 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (16 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (15 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err37ASSERT_VIOLATIONDATA_RACE (14 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (13 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (12 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (11 of 104 remaining) [2022-04-18 16:37:14,750 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (10 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (9 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (8 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (7 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (6 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (5 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (4 of 104 remaining) [2022-04-18 16:37:14,751 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (3 of 104 remaining) [2022-04-18 16:37:14,752 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (2 of 104 remaining) [2022-04-18 16:37:14,752 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (1 of 104 remaining) [2022-04-18 16:37:14,752 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (0 of 104 remaining) [2022-04-18 16:37:14,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:37:14,755 INFO L719 BasicCegarLoop]: Path program histogram: [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 16:37:14,758 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:37:14,758 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:37:14,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:37:14 BasicIcfg [2022-04-18 16:37:14,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:37:14,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:37:14,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:37:14,761 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:37:14,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:54" (3/4) ... [2022-04-18 16:37:14,762 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:37:14,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:37:14,766 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:37:14,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-04-18 16:37:14,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:37:14,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:37:14,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:37:14,795 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:37:14,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:37:14,796 INFO L158 Benchmark]: Toolchain (without parser) took 20845.34ms. Allocated memory was 102.8MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 69.1MB in the beginning and 6.2GB in the end (delta: -6.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-04-18 16:37:14,796 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:37:14,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.99ms. Allocated memory is still 102.8MB. Free memory was 68.9MB in the beginning and 74.9MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:37:14,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.81ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:37:14,797 INFO L158 Benchmark]: Boogie Preprocessor took 39.00ms. Allocated memory is still 102.8MB. Free memory was 71.8MB in the beginning and 69.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:14,797 INFO L158 Benchmark]: RCFGBuilder took 681.06ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 94.8MB in the end (delta: -25.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-04-18 16:37:14,797 INFO L158 Benchmark]: TraceAbstraction took 19818.43ms. Allocated memory was 125.8MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 93.9MB in the beginning and 6.2GB in the end (delta: -6.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-04-18 16:37:14,797 INFO L158 Benchmark]: Witness Printer took 35.02ms. Allocated memory is still 7.7GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:14,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.99ms. Allocated memory is still 102.8MB. Free memory was 68.9MB in the beginning and 74.9MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.81ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.00ms. Allocated memory is still 102.8MB. Free memory was 71.8MB in the beginning and 69.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 681.06ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 94.8MB in the end (delta: -25.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 19818.43ms. Allocated memory was 125.8MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 93.9MB in the beginning and 6.2GB in the end (delta: -6.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 35.02ms. Allocated memory is still 7.7GB. Free memory was 6.2GB in the beginning and 6.2GB 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 110]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 714 locations, 104 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: 19.7s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 353 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 353 mSDsluCounter, 739 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 469 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2284 IncrementalHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 469 mSolverCounterUnsat, 677 mSDtfsCounter, 2284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=962occurred in iteration=17, InterpolantAutomatonStates: 87, 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, 0.7s InterpolantComputationTime, 2103 NumberOfCodeBlocks, 2103 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2081 ConstructedInterpolants, 0 QuantifiedInterpolants, 3086 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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 56 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:37:14,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE