./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:51:20,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:51:20,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:51:20,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:51:20,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:51:20,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:51:20,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:51:20,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:51:20,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:51:20,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:51:20,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:51:20,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:51:20,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:51:20,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:51:20,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:51:20,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:51:20,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:51:20,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:51:20,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:51:20,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:51:20,331 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:51:20,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:51:20,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:51:20,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:51:20,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:51:20,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:51:20,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:51:20,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:51:20,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:51:20,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:51:20,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:51:20,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:51:20,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:51:20,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:51:20,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:51:20,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:51:20,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:51:20,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:51:20,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:51:20,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:51:20,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:51:20,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:51:20,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:51:20,371 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:51:20,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:51:20,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:51:20,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:51:20,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:51:20,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:51:20,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:51:20,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:51:20,373 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:51:20,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:51:20,374 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:51:20,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:51:20,376 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:51:20,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:51:20,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:51:20,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:51:20,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:51:20,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:51:20,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:51:20,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:51:20,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:20,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:51:20,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:51:20,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:51:20,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:51:20,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:51:20,378 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:51:20,378 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:51:20,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:51:20,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2022-04-18 15:51:20,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:51:20,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:51:20,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:51:20,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:51:20,610 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:51:20,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2022-04-18 15:51:20,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3573d2a78/9d0f6054b4794aac9146ed3d2afac180/FLAG159893527 [2022-04-18 15:51:21,125 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:51:21,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2022-04-18 15:51:21,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3573d2a78/9d0f6054b4794aac9146ed3d2afac180/FLAG159893527 [2022-04-18 15:51:21,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3573d2a78/9d0f6054b4794aac9146ed3d2afac180 [2022-04-18 15:51:21,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:51:21,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:51:21,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:21,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:51:21,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:51:21,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5605f74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21, skipping insertion in model container [2022-04-18 15:51:21,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:51:21,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:51:21,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2022-04-18 15:51:21,529 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,531 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,532 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,534 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:21,579 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:51:21,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2022-04-18 15:51:21,606 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,607 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,607 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,608 WARN L1550 CHandler]: Possible shadowing of function new [2022-04-18 15:51:21,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:51:21,650 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:51:21,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21 WrapperNode [2022-04-18 15:51:21,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:51:21,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:21,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:51:21,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:51:21,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,716 INFO L137 Inliner]: procedures = 277, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 294 [2022-04-18 15:51:21,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:51:21,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:51:21,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:51:21,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:51:21,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:51:21,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:51:21,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:51:21,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:51:21,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (1/1) ... [2022-04-18 15:51:21,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:51:21,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:21,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 15:51:21,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 15:51:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:51:21,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:51:21,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 15:51:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 15:51:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 15:51:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:51:21,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:51:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:51:21,836 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:51:21,978 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:51:21,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:51:22,450 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:51:22,457 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:51:22,457 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-04-18 15:51:22,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:22 BoogieIcfgContainer [2022-04-18 15:51:22,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:51:22,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:51:22,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:51:22,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:51:22,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:51:21" (1/3) ... [2022-04-18 15:51:22,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a4496f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:22, skipping insertion in model container [2022-04-18 15:51:22,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:51:21" (2/3) ... [2022-04-18 15:51:22,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a4496f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:51:22, skipping insertion in model container [2022-04-18 15:51:22,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:51:22" (3/3) ... [2022-04-18 15:51:22,465 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2022-04-18 15:51:22,469 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:51:22,469 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:51:22,469 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-04-18 15:51:22,469 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:51:22,538 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 15:51:22,571 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:51:22,577 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 15:51:22,577 INFO L341 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-04-18 15:51:22,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 306 places, 327 transitions, 662 flow [2022-04-18 15:51:22,684 INFO L129 PetriNetUnfolder]: 26/350 cut-off events. [2022-04-18 15:51:22,684 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-04-18 15:51:22,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 350 events. 26/350 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 831 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 181. Up to 4 conditions per place. [2022-04-18 15:51:22,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 327 transitions, 662 flow [2022-04-18 15:51:22,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 327 transitions, 662 flow [2022-04-18 15:51:22,714 INFO L129 PetriNetUnfolder]: 3/70 cut-off events. [2022-04-18 15:51:22,714 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:51:22,715 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:22,715 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] [2022-04-18 15:51:22,716 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:22,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash 74721243, now seen corresponding path program 1 times [2022-04-18 15:51:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:22,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958760074] [2022-04-18 15:51:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:22,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:22,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:22,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:22,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958760074] [2022-04-18 15:51:22,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958760074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:22,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:22,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:51:22,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965944984] [2022-04-18 15:51:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:22,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 15:51:22,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:22,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 15:51:22,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 15:51:22,995 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 327 [2022-04-18 15:51:23,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 327 transitions, 662 flow. Second operand has 2 states, 2 states have (on average 306.5) internal successors, (613), 2 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:23,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 327 [2022-04-18 15:51:23,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:23,050 INFO L129 PetriNetUnfolder]: 6/329 cut-off events. [2022-04-18 15:51:23,051 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-04-18 15:51:23,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 329 events. 6/329 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 695 event pairs, 0 based on Foata normal form. 20/319 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-04-18 15:51:23,053 INFO L132 encePairwiseOnDemand]: 309/327 looper letters, 2 selfloop transitions, 0 changer transitions 0/308 dead transitions. [2022-04-18 15:51:23,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 308 transitions, 628 flow [2022-04-18 15:51:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 15:51:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 15:51:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 632 transitions. [2022-04-18 15:51:23,064 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9663608562691132 [2022-04-18 15:51:23,065 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 632 transitions. [2022-04-18 15:51:23,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 632 transitions. [2022-04-18 15:51:23,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:23,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 632 transitions. [2022-04-18 15:51:23,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 316.0) internal successors, (632), 2 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,078 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,079 INFO L186 Difference]: Start difference. First operand has 306 places, 327 transitions, 662 flow. Second operand 2 states and 632 transitions. [2022-04-18 15:51:23,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 308 transitions, 628 flow [2022-04-18 15:51:23,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 308 transitions, 628 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:51:23,102 INFO L242 Difference]: Finished difference. Result has 306 places, 308 transitions, 624 flow [2022-04-18 15:51:23,104 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=624, PETRI_PLACES=306, PETRI_TRANSITIONS=308} [2022-04-18 15:51:23,107 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2022-04-18 15:51:23,108 INFO L478 AbstractCegarLoop]: Abstraction has has 306 places, 308 transitions, 624 flow [2022-04-18 15:51:23,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 306.5) internal successors, (613), 2 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,108 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:23,109 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] [2022-04-18 15:51:23,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:51:23,110 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1732733220, now seen corresponding path program 1 times [2022-04-18 15:51:23,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:23,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189186823] [2022-04-18 15:51:23,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189186823] [2022-04-18 15:51:23,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189186823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:23,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:23,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:51:23,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877090914] [2022-04-18 15:51:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:23,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:23,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:23,168 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 327 [2022-04-18 15:51:23,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 308 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:23,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 327 [2022-04-18 15:51:23,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:23,250 INFO L129 PetriNetUnfolder]: 7/457 cut-off events. [2022-04-18 15:51:23,251 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-04-18 15:51:23,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 457 events. 7/457 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1231 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 480. Up to 13 conditions per place. [2022-04-18 15:51:23,253 INFO L132 encePairwiseOnDemand]: 324/327 looper letters, 17 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2022-04-18 15:51:23,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 315 transitions, 676 flow [2022-04-18 15:51:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:23,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2022-04-18 15:51:23,255 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9255861365953109 [2022-04-18 15:51:23,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2022-04-18 15:51:23,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2022-04-18 15:51:23,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:23,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2022-04-18 15:51:23,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,260 INFO L186 Difference]: Start difference. First operand has 306 places, 308 transitions, 624 flow. Second operand 3 states and 908 transitions. [2022-04-18 15:51:23,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 315 transitions, 676 flow [2022-04-18 15:51:23,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 315 transitions, 676 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 15:51:23,283 INFO L242 Difference]: Finished difference. Result has 309 places, 309 transitions, 636 flow [2022-04-18 15:51:23,284 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=309, PETRI_TRANSITIONS=309} [2022-04-18 15:51:23,284 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 3 predicate places. [2022-04-18 15:51:23,284 INFO L478 AbstractCegarLoop]: Abstraction has has 309 places, 309 transitions, 636 flow [2022-04-18 15:51:23,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,285 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:23,285 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] [2022-04-18 15:51:23,286 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:51:23,286 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1599697592, now seen corresponding path program 1 times [2022-04-18 15:51:23,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:23,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24712722] [2022-04-18 15:51:23,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:23,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:23,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:23,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:23,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24712722] [2022-04-18 15:51:23,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24712722] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:23,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:23,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:23,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857849341] [2022-04-18 15:51:23,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:23,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:23,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:23,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:23,467 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 327 [2022-04-18 15:51:23,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 309 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:23,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 327 [2022-04-18 15:51:23,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:23,903 INFO L129 PetriNetUnfolder]: 278/1342 cut-off events. [2022-04-18 15:51:23,903 INFO L130 PetriNetUnfolder]: For 8/15 co-relation queries the response was YES. [2022-04-18 15:51:23,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2065 conditions, 1342 events. 278/1342 cut-off events. For 8/15 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7680 event pairs, 252 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 2059. Up to 688 conditions per place. [2022-04-18 15:51:23,909 INFO L132 encePairwiseOnDemand]: 315/327 looper letters, 110 selfloop transitions, 10 changer transitions 0/307 dead transitions. [2022-04-18 15:51:23,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 307 transitions, 872 flow [2022-04-18 15:51:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:23,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-04-18 15:51:23,913 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6309887869520897 [2022-04-18 15:51:23,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-04-18 15:51:23,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-04-18 15:51:23,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:23,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-04-18 15:51:23,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:23,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:23,920 INFO L186 Difference]: Start difference. First operand has 309 places, 309 transitions, 636 flow. Second operand 6 states and 1238 transitions. [2022-04-18 15:51:23,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 307 transitions, 872 flow [2022-04-18 15:51:23,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 307 transitions, 870 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:23,925 INFO L242 Difference]: Finished difference. Result has 311 places, 307 transitions, 650 flow [2022-04-18 15:51:23,926 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=311, PETRI_TRANSITIONS=307} [2022-04-18 15:51:23,926 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 5 predicate places. [2022-04-18 15:51:23,926 INFO L478 AbstractCegarLoop]: Abstraction has has 311 places, 307 transitions, 650 flow [2022-04-18 15:51:23,927 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:23,927 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:23,928 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] [2022-04-18 15:51:23,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:51:23,928 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:23,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:23,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1667606379, now seen corresponding path program 1 times [2022-04-18 15:51:23,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:23,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446509474] [2022-04-18 15:51:23,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:23,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:24,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:24,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446509474] [2022-04-18 15:51:24,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446509474] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:24,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:24,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865166281] [2022-04-18 15:51:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:24,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:24,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:24,016 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 327 [2022-04-18 15:51:24,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 307 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:24,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 327 [2022-04-18 15:51:24,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:24,295 INFO L129 PetriNetUnfolder]: 278/1338 cut-off events. [2022-04-18 15:51:24,295 INFO L130 PetriNetUnfolder]: For 11/18 co-relation queries the response was YES. [2022-04-18 15:51:24,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1338 events. 278/1338 cut-off events. For 11/18 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7663 event pairs, 252 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 2070. Up to 684 conditions per place. [2022-04-18 15:51:24,300 INFO L132 encePairwiseOnDemand]: 315/327 looper letters, 108 selfloop transitions, 10 changer transitions 0/305 dead transitions. [2022-04-18 15:51:24,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 305 transitions, 882 flow [2022-04-18 15:51:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1236 transitions. [2022-04-18 15:51:24,304 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6299694189602446 [2022-04-18 15:51:24,304 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1236 transitions. [2022-04-18 15:51:24,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1236 transitions. [2022-04-18 15:51:24,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:24,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1236 transitions. [2022-04-18 15:51:24,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:24,310 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:24,310 INFO L186 Difference]: Start difference. First operand has 311 places, 307 transitions, 650 flow. Second operand 6 states and 1236 transitions. [2022-04-18 15:51:24,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 305 transitions, 882 flow [2022-04-18 15:51:24,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 305 transitions, 862 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:24,315 INFO L242 Difference]: Finished difference. Result has 309 places, 305 transitions, 646 flow [2022-04-18 15:51:24,316 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=646, PETRI_PLACES=309, PETRI_TRANSITIONS=305} [2022-04-18 15:51:24,316 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 3 predicate places. [2022-04-18 15:51:24,317 INFO L478 AbstractCegarLoop]: Abstraction has has 309 places, 305 transitions, 646 flow [2022-04-18 15:51:24,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,317 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:24,318 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] [2022-04-18 15:51:24,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:51:24,318 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:24,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:24,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1951830366, now seen corresponding path program 1 times [2022-04-18 15:51:24,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:24,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071656823] [2022-04-18 15:51:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:24,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:24,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071656823] [2022-04-18 15:51:24,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071656823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:24,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:24,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:51:24,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625930876] [2022-04-18 15:51:24,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:24,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:24,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:24,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:24,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:24,375 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 327 [2022-04-18 15:51:24,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 305 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:24,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 327 [2022-04-18 15:51:24,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:24,434 INFO L129 PetriNetUnfolder]: 7/641 cut-off events. [2022-04-18 15:51:24,435 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-04-18 15:51:24,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 641 events. 7/641 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1198 event pairs, 0 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 702. Up to 16 conditions per place. [2022-04-18 15:51:24,437 INFO L132 encePairwiseOnDemand]: 324/327 looper letters, 11 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-04-18 15:51:24,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 309 transitions, 680 flow [2022-04-18 15:51:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2022-04-18 15:51:24,439 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.928644240570846 [2022-04-18 15:51:24,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2022-04-18 15:51:24,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2022-04-18 15:51:24,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:24,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2022-04-18 15:51:24,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,444 INFO L186 Difference]: Start difference. First operand has 309 places, 305 transitions, 646 flow. Second operand 3 states and 911 transitions. [2022-04-18 15:51:24,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 309 transitions, 680 flow [2022-04-18 15:51:24,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 309 transitions, 660 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:24,448 INFO L242 Difference]: Finished difference. Result has 307 places, 306 transitions, 638 flow [2022-04-18 15:51:24,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=307, PETRI_TRANSITIONS=306} [2022-04-18 15:51:24,450 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 1 predicate places. [2022-04-18 15:51:24,450 INFO L478 AbstractCegarLoop]: Abstraction has has 307 places, 306 transitions, 638 flow [2022-04-18 15:51:24,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:24,451 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] [2022-04-18 15:51:24,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:51:24,451 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:24,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:24,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1262263335, now seen corresponding path program 1 times [2022-04-18 15:51:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:24,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767230619] [2022-04-18 15:51:24,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:24,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:24,466 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:24,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342658482] [2022-04-18 15:51:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:24,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:24,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 15:51:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:24,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 21 conjunts are in the unsatisfiable core [2022-04-18 15:51:24,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:24,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 15:51:24,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 15:51:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,743 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 15:51:24,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 15:51:24,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 15:51:24,794 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 15:51:24,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 15:51:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:24,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:24,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:24,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767230619] [2022-04-18 15:51:24,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:24,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342658482] [2022-04-18 15:51:24,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342658482] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:24,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:24,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 15:51:24,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943149827] [2022-04-18 15:51:24,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:24,821 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 15:51:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 15:51:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-04-18 15:51:24,824 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 327 [2022-04-18 15:51:24,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 306 transitions, 638 flow. Second operand has 8 states, 8 states have (on average 191.625) internal successors, (1533), 8 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:24,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:24,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 327 [2022-04-18 15:51:24,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:25,195 INFO L129 PetriNetUnfolder]: 278/1526 cut-off events. [2022-04-18 15:51:25,196 INFO L130 PetriNetUnfolder]: For 9/16 co-relation queries the response was YES. [2022-04-18 15:51:25,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 1526 events. 278/1526 cut-off events. For 9/16 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7648 event pairs, 252 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2348. Up to 761 conditions per place. [2022-04-18 15:51:25,203 INFO L132 encePairwiseOnDemand]: 317/327 looper letters, 116 selfloop transitions, 9 changer transitions 0/316 dead transitions. [2022-04-18 15:51:25,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 316 transitions, 908 flow [2022-04-18 15:51:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 15:51:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 15:51:25,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1827 transitions. [2022-04-18 15:51:25,207 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6207951070336392 [2022-04-18 15:51:25,209 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1827 transitions. [2022-04-18 15:51:25,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1827 transitions. [2022-04-18 15:51:25,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:25,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1827 transitions. [2022-04-18 15:51:25,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.0) internal successors, (1827), 9 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:25,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 327.0) internal successors, (3270), 10 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:25,243 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 327.0) internal successors, (3270), 10 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:25,244 INFO L186 Difference]: Start difference. First operand has 307 places, 306 transitions, 638 flow. Second operand 9 states and 1827 transitions. [2022-04-18 15:51:25,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 316 transitions, 908 flow [2022-04-18 15:51:25,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 316 transitions, 906 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:25,248 INFO L242 Difference]: Finished difference. Result has 314 places, 306 transitions, 660 flow [2022-04-18 15:51:25,249 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=660, PETRI_PLACES=314, PETRI_TRANSITIONS=306} [2022-04-18 15:51:25,249 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 8 predicate places. [2022-04-18 15:51:25,249 INFO L478 AbstractCegarLoop]: Abstraction has has 314 places, 306 transitions, 660 flow [2022-04-18 15:51:25,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 191.625) internal successors, (1533), 8 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:25,250 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:25,250 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] [2022-04-18 15:51:25,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-18 15:51:25,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-04-18 15:51:25,470 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash -654186157, now seen corresponding path program 1 times [2022-04-18 15:51:25,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:25,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453465410] [2022-04-18 15:51:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:25,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:25,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959334958] [2022-04-18 15:51:25,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:25,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:25,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:25,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:25,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 15:51:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:25,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 15:51:25,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:25,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 15:51:25,703 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-04-18 15:51:25,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 15:51:25,726 INFO L356 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2022-04-18 15:51:25,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 15:51:25,777 INFO L356 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2022-04-18 15:51:25,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 15:51:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:25,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:25,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:25,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453465410] [2022-04-18 15:51:25,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:25,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959334958] [2022-04-18 15:51:25,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959334958] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:25,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:25,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:25,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004630031] [2022-04-18 15:51:25,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:25,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:25,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:25,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:25,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:25,801 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 327 [2022-04-18 15:51:25,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 306 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:25,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:25,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 327 [2022-04-18 15:51:25,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:26,057 INFO L129 PetriNetUnfolder]: 278/1522 cut-off events. [2022-04-18 15:51:26,058 INFO L130 PetriNetUnfolder]: For 15/22 co-relation queries the response was YES. [2022-04-18 15:51:26,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2373 conditions, 1522 events. 278/1522 cut-off events. For 15/22 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7616 event pairs, 252 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2365. Up to 764 conditions per place. [2022-04-18 15:51:26,064 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 104 selfloop transitions, 5 changer transitions 0/305 dead transitions. [2022-04-18 15:51:26,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 305 transitions, 876 flow [2022-04-18 15:51:26,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:26,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1268 transitions. [2022-04-18 15:51:26,067 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6462793068297655 [2022-04-18 15:51:26,068 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1268 transitions. [2022-04-18 15:51:26,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1268 transitions. [2022-04-18 15:51:26,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:26,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1268 transitions. [2022-04-18 15:51:26,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:26,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:26,074 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:26,074 INFO L186 Difference]: Start difference. First operand has 314 places, 306 transitions, 660 flow. Second operand 6 states and 1268 transitions. [2022-04-18 15:51:26,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 305 transitions, 876 flow [2022-04-18 15:51:26,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 305 transitions, 862 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-04-18 15:51:26,081 INFO L242 Difference]: Finished difference. Result has 311 places, 305 transitions, 654 flow [2022-04-18 15:51:26,082 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=654, PETRI_PLACES=311, PETRI_TRANSITIONS=305} [2022-04-18 15:51:26,082 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 5 predicate places. [2022-04-18 15:51:26,082 INFO L478 AbstractCegarLoop]: Abstraction has has 311 places, 305 transitions, 654 flow [2022-04-18 15:51:26,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:26,083 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:26,083 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] [2022-04-18 15:51:26,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:26,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-04-18 15:51:26,292 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:26,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash 268760632, now seen corresponding path program 1 times [2022-04-18 15:51:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:26,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554853275] [2022-04-18 15:51:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:26,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:26,311 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:26,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855466261] [2022-04-18 15:51:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:26,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:26,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:26,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:26,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 15:51:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:26,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 15:51:26,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:26,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 15:51:26,605 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-18 15:51:26,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-18 15:51:26,636 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-18 15:51:26,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2022-04-18 15:51:26,675 INFO L356 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-04-18 15:51:26,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2022-04-18 15:51:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:26,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:26,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554853275] [2022-04-18 15:51:26,690 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:26,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855466261] [2022-04-18 15:51:26,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855466261] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:26,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:26,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102455202] [2022-04-18 15:51:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:26,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:26,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:26,692 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 327 [2022-04-18 15:51:26,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 305 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:26,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:26,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 327 [2022-04-18 15:51:26,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:27,001 INFO L129 PetriNetUnfolder]: 278/1518 cut-off events. [2022-04-18 15:51:27,001 INFO L130 PetriNetUnfolder]: For 15/22 co-relation queries the response was YES. [2022-04-18 15:51:27,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 1518 events. 278/1518 cut-off events. For 15/22 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7579 event pairs, 252 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2354. Up to 764 conditions per place. [2022-04-18 15:51:27,008 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 104 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2022-04-18 15:51:27,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 304 transitions, 870 flow [2022-04-18 15:51:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2022-04-18 15:51:27,012 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6432212028542303 [2022-04-18 15:51:27,012 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2022-04-18 15:51:27,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2022-04-18 15:51:27,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:27,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2022-04-18 15:51:27,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:27,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:27,017 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:27,018 INFO L186 Difference]: Start difference. First operand has 311 places, 305 transitions, 654 flow. Second operand 6 states and 1262 transitions. [2022-04-18 15:51:27,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 304 transitions, 870 flow [2022-04-18 15:51:27,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 304 transitions, 860 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:27,022 INFO L242 Difference]: Finished difference. Result has 310 places, 304 transitions, 652 flow [2022-04-18 15:51:27,023 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=652, PETRI_PLACES=310, PETRI_TRANSITIONS=304} [2022-04-18 15:51:27,024 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 4 predicate places. [2022-04-18 15:51:27,024 INFO L478 AbstractCegarLoop]: Abstraction has has 310 places, 304 transitions, 652 flow [2022-04-18 15:51:27,024 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:27,024 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:27,024 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 15:51:27,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-04-18 15:51:27,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:27,242 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:27,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:27,243 INFO L85 PathProgramCache]: Analyzing trace with hash -106693846, now seen corresponding path program 1 times [2022-04-18 15:51:27,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:27,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147301201] [2022-04-18 15:51:27,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:27,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:27,259 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:27,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969407088] [2022-04-18 15:51:27,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:27,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:27,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:27,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:27,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-18 15:51:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:27,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 15:51:27,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:27,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 15:51:27,532 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-04-18 15:51:27,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 15:51:27,566 INFO L356 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2022-04-18 15:51:27,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 15:51:27,596 INFO L356 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2022-04-18 15:51:27,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 15:51:27,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:27,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:27,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:27,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147301201] [2022-04-18 15:51:27,609 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:27,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969407088] [2022-04-18 15:51:27,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969407088] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:27,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:27,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:27,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942807429] [2022-04-18 15:51:27,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:27,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:27,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:27,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:27,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:27,613 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 327 [2022-04-18 15:51:27,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 304 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:27,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:27,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 327 [2022-04-18 15:51:27,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:27,921 INFO L129 PetriNetUnfolder]: 278/1514 cut-off events. [2022-04-18 15:51:27,921 INFO L130 PetriNetUnfolder]: For 15/22 co-relation queries the response was YES. [2022-04-18 15:51:27,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 1514 events. 278/1514 cut-off events. For 15/22 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7573 event pairs, 252 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2354. Up to 768 conditions per place. [2022-04-18 15:51:27,927 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 105 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2022-04-18 15:51:27,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 303 transitions, 870 flow [2022-04-18 15:51:27,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2022-04-18 15:51:27,930 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6376146788990825 [2022-04-18 15:51:27,930 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1251 transitions. [2022-04-18 15:51:27,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1251 transitions. [2022-04-18 15:51:27,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:27,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1251 transitions. [2022-04-18 15:51:27,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:27,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:27,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:27,936 INFO L186 Difference]: Start difference. First operand has 310 places, 304 transitions, 652 flow. Second operand 6 states and 1251 transitions. [2022-04-18 15:51:27,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 303 transitions, 870 flow [2022-04-18 15:51:27,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 303 transitions, 860 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:27,940 INFO L242 Difference]: Finished difference. Result has 309 places, 303 transitions, 650 flow [2022-04-18 15:51:27,941 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=309, PETRI_TRANSITIONS=303} [2022-04-18 15:51:27,941 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 3 predicate places. [2022-04-18 15:51:27,942 INFO L478 AbstractCegarLoop]: Abstraction has has 309 places, 303 transitions, 650 flow [2022-04-18 15:51:27,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:27,942 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:27,942 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] [2022-04-18 15:51:27,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:28,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:28,152 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1015828590, now seen corresponding path program 1 times [2022-04-18 15:51:28,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:28,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560492693] [2022-04-18 15:51:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:28,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:28,174 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:28,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703073984] [2022-04-18 15:51:28,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:28,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:28,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:28,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:28,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-18 15:51:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:28,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 15:51:28,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:28,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 15:51:28,469 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-18 15:51:28,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-18 15:51:28,508 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-18 15:51:28,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2022-04-18 15:51:28,552 INFO L356 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-04-18 15:51:28,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 46 [2022-04-18 15:51:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:28,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:28,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560492693] [2022-04-18 15:51:28,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703073984] [2022-04-18 15:51:28,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703073984] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:28,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:28,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:28,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682151063] [2022-04-18 15:51:28,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:28,575 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:28,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:28,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:28,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:28,576 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 327 [2022-04-18 15:51:28,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 303 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:28,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:28,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 327 [2022-04-18 15:51:28,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:28,923 INFO L129 PetriNetUnfolder]: 278/1510 cut-off events. [2022-04-18 15:51:28,923 INFO L130 PetriNetUnfolder]: For 15/22 co-relation queries the response was YES. [2022-04-18 15:51:28,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2354 conditions, 1510 events. 278/1510 cut-off events. For 15/22 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7549 event pairs, 252 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2346. Up to 764 conditions per place. [2022-04-18 15:51:28,928 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 104 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2022-04-18 15:51:28,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 302 transitions, 866 flow [2022-04-18 15:51:28,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1250 transitions. [2022-04-18 15:51:28,930 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6371049949031601 [2022-04-18 15:51:28,931 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1250 transitions. [2022-04-18 15:51:28,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1250 transitions. [2022-04-18 15:51:28,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:28,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1250 transitions. [2022-04-18 15:51:28,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.33333333333334) internal successors, (1250), 6 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:28,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:28,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:28,936 INFO L186 Difference]: Start difference. First operand has 309 places, 303 transitions, 650 flow. Second operand 6 states and 1250 transitions. [2022-04-18 15:51:28,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 302 transitions, 866 flow [2022-04-18 15:51:28,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 302 transitions, 856 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:28,940 INFO L242 Difference]: Finished difference. Result has 308 places, 302 transitions, 648 flow [2022-04-18 15:51:28,941 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=648, PETRI_PLACES=308, PETRI_TRANSITIONS=302} [2022-04-18 15:51:28,941 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 2 predicate places. [2022-04-18 15:51:28,941 INFO L478 AbstractCegarLoop]: Abstraction has has 308 places, 302 transitions, 648 flow [2022-04-18 15:51:28,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:28,942 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:28,942 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] [2022-04-18 15:51:28,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:29,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-04-18 15:51:29,160 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:29,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:29,161 INFO L85 PathProgramCache]: Analyzing trace with hash -725695168, now seen corresponding path program 1 times [2022-04-18 15:51:29,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:29,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745971457] [2022-04-18 15:51:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:29,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:29,184 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:29,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580409445] [2022-04-18 15:51:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:29,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:29,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:29,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:29,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-18 15:51:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:29,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 15:51:29,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:29,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 15:51:29,546 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-04-18 15:51:29,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 15:51:29,572 INFO L356 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2022-04-18 15:51:29,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 15:51:29,620 INFO L356 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2022-04-18 15:51:29,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 15:51:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:51:29,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:29,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:29,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745971457] [2022-04-18 15:51:29,636 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:29,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580409445] [2022-04-18 15:51:29,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580409445] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:29,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:29,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:51:29,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836994355] [2022-04-18 15:51:29,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:29,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:51:29,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:29,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:51:29,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:51:29,639 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 327 [2022-04-18 15:51:29,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 302 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:29,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:29,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 327 [2022-04-18 15:51:29,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:29,978 INFO L129 PetriNetUnfolder]: 278/1506 cut-off events. [2022-04-18 15:51:29,979 INFO L130 PetriNetUnfolder]: For 15/22 co-relation queries the response was YES. [2022-04-18 15:51:29,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 1506 events. 278/1506 cut-off events. For 15/22 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7532 event pairs, 252 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2334. Up to 756 conditions per place. [2022-04-18 15:51:29,984 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 102 selfloop transitions, 5 changer transitions 0/301 dead transitions. [2022-04-18 15:51:29,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 301 transitions, 860 flow [2022-04-18 15:51:29,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:51:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:51:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1254 transitions. [2022-04-18 15:51:29,987 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6391437308868502 [2022-04-18 15:51:29,987 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1254 transitions. [2022-04-18 15:51:29,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1254 transitions. [2022-04-18 15:51:29,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:29,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1254 transitions. [2022-04-18 15:51:29,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.0) internal successors, (1254), 6 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 15:51:29,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:29,992 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 327.0) internal successors, (2289), 7 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 15:51:29,993 INFO L186 Difference]: Start difference. First operand has 308 places, 302 transitions, 648 flow. Second operand 6 states and 1254 transitions. [2022-04-18 15:51:29,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 301 transitions, 860 flow [2022-04-18 15:51:29,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 301 transitions, 850 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:29,997 INFO L242 Difference]: Finished difference. Result has 307 places, 301 transitions, 646 flow [2022-04-18 15:51:29,997 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=646, PETRI_PLACES=307, PETRI_TRANSITIONS=301} [2022-04-18 15:51:29,998 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 1 predicate places. [2022-04-18 15:51:29,998 INFO L478 AbstractCegarLoop]: Abstraction has has 307 places, 301 transitions, 646 flow [2022-04-18 15:51:29,998 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:29,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:29,999 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] [2022-04-18 15:51:30,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:30,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:30,218 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:30,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1612412767, now seen corresponding path program 1 times [2022-04-18 15:51:30,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:30,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277919292] [2022-04-18 15:51:30,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:30,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:30,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632363043] [2022-04-18 15:51:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:30,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:30,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:30,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:30,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-18 15:51:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:30,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-18 15:51:30,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:30,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 15:51:30,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 15:51:30,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:30,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277919292] [2022-04-18 15:51:30,564 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:30,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632363043] [2022-04-18 15:51:30,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632363043] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:51:30,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:51:30,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:51:30,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900095548] [2022-04-18 15:51:30,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:51:30,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:51:30,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:30,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:51:30,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:51:30,567 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 327 [2022-04-18 15:51:30,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 301 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:30,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:30,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 327 [2022-04-18 15:51:30,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:30,627 INFO L129 PetriNetUnfolder]: 6/615 cut-off events. [2022-04-18 15:51:30,627 INFO L130 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-04-18 15:51:30,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 615 events. 6/615 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1127 event pairs, 0 based on Foata normal form. 1/599 useless extension candidates. Maximal degree in co-relation 678. Up to 9 conditions per place. [2022-04-18 15:51:30,629 INFO L132 encePairwiseOnDemand]: 324/327 looper letters, 9 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-04-18 15:51:30,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 303 transitions, 672 flow [2022-04-18 15:51:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:51:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:51:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2022-04-18 15:51:30,632 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2022-04-18 15:51:30,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2022-04-18 15:51:30,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2022-04-18 15:51:30,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:30,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2022-04-18 15:51:30,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:30,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:30,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:30,635 INFO L186 Difference]: Start difference. First operand has 307 places, 301 transitions, 646 flow. Second operand 3 states and 909 transitions. [2022-04-18 15:51:30,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 303 transitions, 672 flow [2022-04-18 15:51:30,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 303 transitions, 662 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 15:51:30,640 INFO L242 Difference]: Finished difference. Result has 305 places, 301 transitions, 644 flow [2022-04-18 15:51:30,640 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=305, PETRI_TRANSITIONS=301} [2022-04-18 15:51:30,641 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, -1 predicate places. [2022-04-18 15:51:30,641 INFO L478 AbstractCegarLoop]: Abstraction has has 305 places, 301 transitions, 644 flow [2022-04-18 15:51:30,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:30,641 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:30,641 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:30,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:30,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:30,863 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:30,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:30,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1596357848, now seen corresponding path program 1 times [2022-04-18 15:51:30,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:30,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804609088] [2022-04-18 15:51:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:30,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:30,890 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:30,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537919304] [2022-04-18 15:51:30,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:30,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:30,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:30,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:30,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-18 15:51:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:51:31,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 15:51:31,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-18 15:51:31,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:51:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-18 15:51:31,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:31,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804609088] [2022-04-18 15:51:31,577 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:31,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537919304] [2022-04-18 15:51:31,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537919304] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:51:31,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-18 15:51:31,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-04-18 15:51:31,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939352994] [2022-04-18 15:51:31,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-18 15:51:31,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 15:51:31,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:31,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 15:51:31,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-04-18 15:51:31,580 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 327 [2022-04-18 15:51:31,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 301 transitions, 644 flow. Second operand has 8 states, 8 states have (on average 300.0) internal successors, (2400), 8 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:31,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:31,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 327 [2022-04-18 15:51:31,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:31,710 INFO L129 PetriNetUnfolder]: 6/801 cut-off events. [2022-04-18 15:51:31,710 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2022-04-18 15:51:31,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 801 events. 6/801 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 651 event pairs, 0 based on Foata normal form. 4/789 useless extension candidates. Maximal degree in co-relation 886. Up to 13 conditions per place. [2022-04-18 15:51:31,713 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 12 selfloop transitions, 9 changer transitions 0/311 dead transitions. [2022-04-18 15:51:31,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 311 transitions, 708 flow [2022-04-18 15:51:31,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 15:51:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 15:51:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2705 transitions. [2022-04-18 15:51:31,717 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9191301393136255 [2022-04-18 15:51:31,717 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2705 transitions. [2022-04-18 15:51:31,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2705 transitions. [2022-04-18 15:51:31,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:31,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2705 transitions. [2022-04-18 15:51:31,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 300.55555555555554) internal successors, (2705), 9 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:31,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 327.0) internal successors, (3270), 10 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:31,725 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 327.0) internal successors, (3270), 10 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:31,726 INFO L186 Difference]: Start difference. First operand has 305 places, 301 transitions, 644 flow. Second operand 9 states and 2705 transitions. [2022-04-18 15:51:31,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 311 transitions, 708 flow [2022-04-18 15:51:31,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 311 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:51:31,730 INFO L242 Difference]: Finished difference. Result has 314 places, 307 transitions, 690 flow [2022-04-18 15:51:31,731 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=690, PETRI_PLACES=314, PETRI_TRANSITIONS=307} [2022-04-18 15:51:31,731 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 8 predicate places. [2022-04-18 15:51:31,731 INFO L478 AbstractCegarLoop]: Abstraction has has 314 places, 307 transitions, 690 flow [2022-04-18 15:51:31,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 300.0) internal successors, (2400), 8 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:31,732 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:31,732 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:31,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:31,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-04-18 15:51:31,948 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:31,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2091883192, now seen corresponding path program 2 times [2022-04-18 15:51:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:31,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928222520] [2022-04-18 15:51:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:31,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:32,000 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:32,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120413519] [2022-04-18 15:51:32,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-18 15:51:32,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:32,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:32,002 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:32,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-18 15:51:32,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-18 15:51:32,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 15:51:32,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-18 15:51:32,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-18 15:51:32,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:51:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-18 15:51:33,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:33,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928222520] [2022-04-18 15:51:33,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:33,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120413519] [2022-04-18 15:51:33,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120413519] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:51:33,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-18 15:51:33,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-04-18 15:51:33,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156574549] [2022-04-18 15:51:33,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-18 15:51:33,304 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 15:51:33,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:33,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 15:51:33,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-04-18 15:51:33,307 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 327 [2022-04-18 15:51:33,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 307 transitions, 690 flow. Second operand has 16 states, 16 states have (on average 300.25) internal successors, (4804), 16 states have internal predecessors, (4804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:33,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:33,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 327 [2022-04-18 15:51:33,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:33,700 INFO L129 PetriNetUnfolder]: 6/1529 cut-off events. [2022-04-18 15:51:33,701 INFO L130 PetriNetUnfolder]: For 65/66 co-relation queries the response was YES. [2022-04-18 15:51:33,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 1529 events. 6/1529 cut-off events. For 65/66 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 651 event pairs, 0 based on Foata normal form. 8/1521 useless extension candidates. Maximal degree in co-relation 1780. Up to 29 conditions per place. [2022-04-18 15:51:33,705 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 20 selfloop transitions, 21 changer transitions 0/331 dead transitions. [2022-04-18 15:51:33,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 331 transitions, 880 flow [2022-04-18 15:51:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 15:51:33,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-04-18 15:51:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6303 transitions. [2022-04-18 15:51:33,713 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9178680646570555 [2022-04-18 15:51:33,713 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6303 transitions. [2022-04-18 15:51:33,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6303 transitions. [2022-04-18 15:51:33,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:33,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6303 transitions. [2022-04-18 15:51:33,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 300.14285714285717) internal successors, (6303), 21 states have internal predecessors, (6303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:33,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 327.0) internal successors, (7194), 22 states have internal predecessors, (7194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:33,732 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 327.0) internal successors, (7194), 22 states have internal predecessors, (7194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:33,732 INFO L186 Difference]: Start difference. First operand has 314 places, 307 transitions, 690 flow. Second operand 21 states and 6303 transitions. [2022-04-18 15:51:33,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 331 transitions, 880 flow [2022-04-18 15:51:33,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 331 transitions, 866 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:33,737 INFO L242 Difference]: Finished difference. Result has 338 places, 320 transitions, 814 flow [2022-04-18 15:51:33,738 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=814, PETRI_PLACES=338, PETRI_TRANSITIONS=320} [2022-04-18 15:51:33,738 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 32 predicate places. [2022-04-18 15:51:33,738 INFO L478 AbstractCegarLoop]: Abstraction has has 338 places, 320 transitions, 814 flow [2022-04-18 15:51:33,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 300.25) internal successors, (4804), 16 states have internal predecessors, (4804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:33,739 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:33,740 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:33,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-04-18 15:51:33,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-04-18 15:51:33,956 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:33,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:33,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2005819000, now seen corresponding path program 3 times [2022-04-18 15:51:33,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:33,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562582876] [2022-04-18 15:51:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:33,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:34,052 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:34,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882031549] [2022-04-18 15:51:34,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 15:51:34,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:34,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:34,054 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:34,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-04-18 15:51:34,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-04-18 15:51:34,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 15:51:34,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 15:51:34,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2022-04-18 15:51:35,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:51:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2022-04-18 15:51:36,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:36,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562582876] [2022-04-18 15:51:36,458 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:36,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882031549] [2022-04-18 15:51:36,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882031549] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:51:36,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-18 15:51:36,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-04-18 15:51:36,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571183205] [2022-04-18 15:51:36,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-18 15:51:36,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 15:51:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 15:51:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-04-18 15:51:36,461 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 327 [2022-04-18 15:51:36,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 320 transitions, 814 flow. Second operand has 8 states, 8 states have (on average 297.75) internal successors, (2382), 8 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:36,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:36,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 327 [2022-04-18 15:51:36,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:37,057 INFO L129 PetriNetUnfolder]: 7/2197 cut-off events. [2022-04-18 15:51:37,058 INFO L130 PetriNetUnfolder]: For 116/117 co-relation queries the response was YES. [2022-04-18 15:51:37,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 2197 events. 7/2197 cut-off events. For 116/117 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 2/2183 useless extension candidates. Maximal degree in co-relation 2607. Up to 43 conditions per place. [2022-04-18 15:51:37,062 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 21 selfloop transitions, 9 changer transitions 0/336 dead transitions. [2022-04-18 15:51:37,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 336 transitions, 908 flow [2022-04-18 15:51:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 15:51:37,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 15:51:37,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2687 transitions. [2022-04-18 15:51:37,066 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9130139313625553 [2022-04-18 15:51:37,066 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2687 transitions. [2022-04-18 15:51:37,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2687 transitions. [2022-04-18 15:51:37,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:37,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2687 transitions. [2022-04-18 15:51:37,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 298.55555555555554) internal successors, (2687), 9 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:37,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 327.0) internal successors, (3270), 10 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:37,074 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 327.0) internal successors, (3270), 10 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:37,074 INFO L186 Difference]: Start difference. First operand has 338 places, 320 transitions, 814 flow. Second operand 9 states and 2687 transitions. [2022-04-18 15:51:37,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 336 transitions, 908 flow [2022-04-18 15:51:37,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 336 transitions, 884 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-04-18 15:51:37,080 INFO L242 Difference]: Finished difference. Result has 343 places, 326 transitions, 840 flow [2022-04-18 15:51:37,081 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=840, PETRI_PLACES=343, PETRI_TRANSITIONS=326} [2022-04-18 15:51:37,081 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 37 predicate places. [2022-04-18 15:51:37,081 INFO L478 AbstractCegarLoop]: Abstraction has has 343 places, 326 transitions, 840 flow [2022-04-18 15:51:37,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 297.75) internal successors, (2382), 8 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:37,082 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:37,082 INFO L255 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:37,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:37,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-04-18 15:51:37,316 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:37,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1915514840, now seen corresponding path program 4 times [2022-04-18 15:51:37,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:37,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078597813] [2022-04-18 15:51:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:37,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:37,581 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:37,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918846973] [2022-04-18 15:51:37,581 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-18 15:51:37,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:37,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:37,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:37,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-04-18 15:51:39,116 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-18 15:51:39,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 15:51:39,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 7852 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-18 15:51:39,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 15:51:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 19265 backedges. 0 proven. 13506 refuted. 0 times theorem prover too weak. 5759 trivial. 0 not checked. [2022-04-18 15:51:41,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 15:51:44,946 INFO L134 CoverageAnalysis]: Checked inductivity of 19265 backedges. 0 proven. 13506 refuted. 0 times theorem prover too weak. 5759 trivial. 0 not checked. [2022-04-18 15:51:44,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:51:44,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078597813] [2022-04-18 15:51:44,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 15:51:44,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918846973] [2022-04-18 15:51:44,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918846973] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 15:51:44,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-18 15:51:44,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-04-18 15:51:44,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289483200] [2022-04-18 15:51:44,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-18 15:51:44,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 15:51:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:51:44,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 15:51:44,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-04-18 15:51:44,951 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 327 [2022-04-18 15:51:44,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 326 transitions, 840 flow. Second operand has 16 states, 16 states have (on average 298.375) internal successors, (4774), 16 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:44,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:51:44,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 327 [2022-04-18 15:51:44,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:51:47,172 INFO L129 PetriNetUnfolder]: 11/4861 cut-off events. [2022-04-18 15:51:47,172 INFO L130 PetriNetUnfolder]: For 348/349 co-relation queries the response was YES. [2022-04-18 15:51:47,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5778 conditions, 4861 events. 11/4861 cut-off events. For 348/349 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 320 event pairs, 0 based on Foata normal form. 4/4849 useless extension candidates. Maximal degree in co-relation 5759. Up to 99 conditions per place. [2022-04-18 15:51:47,181 INFO L132 encePairwiseOnDemand]: 321/327 looper letters, 41 selfloop transitions, 21 changer transitions 0/368 dead transitions. [2022-04-18 15:51:47,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 368 transitions, 1108 flow [2022-04-18 15:51:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 15:51:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-04-18 15:51:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6261 transitions. [2022-04-18 15:51:47,185 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9117518567059851 [2022-04-18 15:51:47,186 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6261 transitions. [2022-04-18 15:51:47,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6261 transitions. [2022-04-18 15:51:47,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:51:47,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6261 transitions. [2022-04-18 15:51:47,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 298.14285714285717) internal successors, (6261), 21 states have internal predecessors, (6261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 327.0) internal successors, (7194), 22 states have internal predecessors, (7194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,200 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 327.0) internal successors, (7194), 22 states have internal predecessors, (7194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,201 INFO L186 Difference]: Start difference. First operand has 343 places, 326 transitions, 840 flow. Second operand 21 states and 6261 transitions. [2022-04-18 15:51:47,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 368 transitions, 1108 flow [2022-04-18 15:51:47,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 368 transitions, 1094 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-04-18 15:51:47,208 INFO L242 Difference]: Finished difference. Result has 367 places, 339 transitions, 964 flow [2022-04-18 15:51:47,208 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=964, PETRI_PLACES=367, PETRI_TRANSITIONS=339} [2022-04-18 15:51:47,209 INFO L335 CegarLoopForPetriNet]: 306 programPoint places, 61 predicate places. [2022-04-18 15:51:47,209 INFO L478 AbstractCegarLoop]: Abstraction has has 367 places, 339 transitions, 964 flow [2022-04-18 15:51:47,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 298.375) internal successors, (4774), 16 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 15:51:47,210 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:51:47,211 INFO L255 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:51:47,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-04-18 15:51:47,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-04-18 15:51:47,439 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 15:51:47,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:51:47,440 INFO L85 PathProgramCache]: Analyzing trace with hash 747025768, now seen corresponding path program 5 times [2022-04-18 15:51:47,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:51:47,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699329886] [2022-04-18 15:51:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:51:47,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:51:47,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 15:51:47,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55000695] [2022-04-18 15:51:47,902 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-04-18 15:51:47,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 15:51:47,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:51:47,903 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 15:51:47,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Killed by 15