./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:34:08,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:34:08,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:34:08,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:34:08,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:34:08,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:34:08,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:34:08,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:34:08,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:34:08,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:34:08,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:34:08,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:34:08,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:34:08,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:34:08,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:34:08,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:34:08,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:34:08,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:34:08,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:34:08,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:34:08,495 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:34:08,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:34:08,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:34:08,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:34:08,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:34:08,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:34:08,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:34:08,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:34:08,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:34:08,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:34:08,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:34:08,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:34:08,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:34:08,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:34:08,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:34:08,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:34:08,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:34:08,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:34:08,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:34:08,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:34:08,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:34:08,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:34:08,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:34:08,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:34:08,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:34:08,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:34:08,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:34:08,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:34:08,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:34:08,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:34:08,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:34:08,567 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:34:08,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:34:08,569 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:34:08,569 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:34:08,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:34:08,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:34:08,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:34:08,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:34:08,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:34:08,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:34:08,570 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:34:08,570 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:34:08,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:34:08,570 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:34:08,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:34:08,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:34:08,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:34:08,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:34:08,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:08,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:34:08,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:34:08,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:34:08,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:34:08,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:34:08,573 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:34:08,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:34:08,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:34:08,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 [2022-04-18 16:34:08,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:34:08,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:34:08,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:34:08,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:34:08,928 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:34:08,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2022-04-18 16:34:08,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0cafa42/49ce3110d7ae44be8f9daae4e78efbe3/FLAGe23fb51ff [2022-04-18 16:34:09,322 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:34:09,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2022-04-18 16:34:09,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0cafa42/49ce3110d7ae44be8f9daae4e78efbe3/FLAGe23fb51ff [2022-04-18 16:34:09,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0cafa42/49ce3110d7ae44be8f9daae4e78efbe3 [2022-04-18 16:34:09,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:34:09,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:34:09,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:09,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:34:09,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:34:09,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:09,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a44e78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09, skipping insertion in model container [2022-04-18 16:34:09,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:09,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:34:09,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:34:09,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-04-18 16:34:09,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:09,960 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:34:09,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-04-18 16:34:09,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:09,993 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:34:09,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09 WrapperNode [2022-04-18 16:34:09,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:09,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:09,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:34:09,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:34:10,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,042 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 516 [2022-04-18 16:34:10,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:10,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:34:10,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:34:10,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:34:10,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:34:10,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:34:10,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:34:10,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:34:10,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (1/1) ... [2022-04-18 16:34:10,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:10,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:34:10,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:34:10,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:34:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:34:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:34:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:34:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:34:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:34:10,149 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:34:10,214 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:34:10,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:34:10,747 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:34:10,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:34:10,756 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:34:10,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:10 BoogieIcfgContainer [2022-04-18 16:34:10,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:34:10,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:34:10,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:34:10,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:34:10,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:34:09" (1/3) ... [2022-04-18 16:34:10,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e36a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:10, skipping insertion in model container [2022-04-18 16:34:10,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:09" (2/3) ... [2022-04-18 16:34:10,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e36a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:10, skipping insertion in model container [2022-04-18 16:34:10,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:10" (3/3) ... [2022-04-18 16:34:10,763 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2022-04-18 16:34:10,766 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:34:10,766 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:34:10,767 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-04-18 16:34:10,767 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:34:10,867 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:34:10,913 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:34:10,919 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 16:34:10,919 INFO L341 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2022-04-18 16:34:10,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 688 places, 714 transitions, 1444 flow [2022-04-18 16:34:11,127 INFO L129 PetriNetUnfolder]: 33/712 cut-off events. [2022-04-18 16:34:11,128 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:34:11,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 712 events. 33/712 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1880 event pairs, 0 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 461. Up to 2 conditions per place. [2022-04-18 16:34:11,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 688 places, 714 transitions, 1444 flow [2022-04-18 16:34:11,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 694 transitions, 1400 flow [2022-04-18 16:34:11,151 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2022-04-18 16:34:11,151 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:34:11,151 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:11,152 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] [2022-04-18 16:34:11,152 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:11,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash -837769145, now seen corresponding path program 1 times [2022-04-18 16:34:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919135079] [2022-04-18 16:34:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:11,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919135079] [2022-04-18 16:34:11,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919135079] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:11,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:11,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:11,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140192178] [2022-04-18 16:34:11,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:11,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:11,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:11,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:11,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:11,326 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 714 [2022-04-18 16:34:11,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 694 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:11,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 714 [2022-04-18 16:34:11,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:11,628 INFO L129 PetriNetUnfolder]: 32/1111 cut-off events. [2022-04-18 16:34:11,628 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-04-18 16:34:11,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 1111 events. 32/1111 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5105 event pairs, 18 based on Foata normal form. 134/1077 useless extension candidates. Maximal degree in co-relation 972. Up to 80 conditions per place. [2022-04-18 16:34:11,644 INFO L132 encePairwiseOnDemand]: 689/714 looper letters, 43 selfloop transitions, 2 changer transitions 3/671 dead transitions. [2022-04-18 16:34:11,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 671 transitions, 1444 flow [2022-04-18 16:34:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:11,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2000 transitions. [2022-04-18 16:34:11,663 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9337068160597572 [2022-04-18 16:34:11,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2000 transitions. [2022-04-18 16:34:11,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2000 transitions. [2022-04-18 16:34:11,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:11,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2000 transitions. [2022-04-18 16:34:11,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,688 INFO L186 Difference]: Start difference. First operand has 669 places, 694 transitions, 1400 flow. Second operand 3 states and 2000 transitions. [2022-04-18 16:34:11,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 671 transitions, 1444 flow [2022-04-18 16:34:11,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 671 transitions, 1436 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:34:11,708 INFO L242 Difference]: Finished difference. Result has 666 places, 668 transitions, 1344 flow [2022-04-18 16:34:11,710 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1346, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1344, PETRI_PLACES=666, PETRI_TRANSITIONS=668} [2022-04-18 16:34:11,716 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2022-04-18 16:34:11,716 INFO L478 AbstractCegarLoop]: Abstraction has has 666 places, 668 transitions, 1344 flow [2022-04-18 16:34:11,718 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,718 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:11,718 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 16:34:11,718 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:34:11,718 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:11,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash 196513309, now seen corresponding path program 1 times [2022-04-18 16:34:11,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:11,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317804170] [2022-04-18 16:34:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:11,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:11,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317804170] [2022-04-18 16:34:11,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317804170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:11,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:11,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:11,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521843840] [2022-04-18 16:34:11,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:11,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:11,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:11,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:11,783 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-04-18 16:34:11,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 668 transitions, 1344 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:11,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-04-18 16:34:11,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:11,979 INFO L129 PetriNetUnfolder]: 30/886 cut-off events. [2022-04-18 16:34:11,980 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-04-18 16:34:11,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 886 events. 30/886 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3810 event pairs, 18 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 922. Up to 65 conditions per place. [2022-04-18 16:34:11,992 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/667 dead transitions. [2022-04-18 16:34:11,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 667 transitions, 1402 flow [2022-04-18 16:34:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:11,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-04-18 16:34:11,996 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-04-18 16:34:11,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-04-18 16:34:11,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-04-18 16:34:11,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:11,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-04-18 16:34:12,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,004 INFO L186 Difference]: Start difference. First operand has 666 places, 668 transitions, 1344 flow. Second operand 3 states and 2008 transitions. [2022-04-18 16:34:12,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 667 transitions, 1402 flow [2022-04-18 16:34:12,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 667 transitions, 1398 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:12,013 INFO L242 Difference]: Finished difference. Result has 662 places, 667 transitions, 1342 flow [2022-04-18 16:34:12,014 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=660, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1342, PETRI_PLACES=662, PETRI_TRANSITIONS=667} [2022-04-18 16:34:12,015 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -7 predicate places. [2022-04-18 16:34:12,015 INFO L478 AbstractCegarLoop]: Abstraction has has 662 places, 667 transitions, 1342 flow [2022-04-18 16:34:12,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,016 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:12,016 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] [2022-04-18 16:34:12,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:34:12,017 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1254129102, now seen corresponding path program 1 times [2022-04-18 16:34:12,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:12,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322079331] [2022-04-18 16:34:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:12,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:12,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322079331] [2022-04-18 16:34:12,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322079331] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:12,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:12,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23290864] [2022-04-18 16:34:12,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:12,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:12,079 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-04-18 16:34:12,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 667 transitions, 1342 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:12,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-04-18 16:34:12,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:12,221 INFO L129 PetriNetUnfolder]: 17/1015 cut-off events. [2022-04-18 16:34:12,222 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-04-18 16:34:12,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 1015 events. 17/1015 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3962 event pairs, 3 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 999. Up to 17 conditions per place. [2022-04-18 16:34:12,235 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/666 dead transitions. [2022-04-18 16:34:12,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 666 transitions, 1364 flow [2022-04-18 16:34:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-04-18 16:34:12,239 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-04-18 16:34:12,239 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-04-18 16:34:12,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-04-18 16:34:12,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:12,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-04-18 16:34:12,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,249 INFO L186 Difference]: Start difference. First operand has 662 places, 667 transitions, 1342 flow. Second operand 3 states and 2044 transitions. [2022-04-18 16:34:12,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 666 transitions, 1364 flow [2022-04-18 16:34:12,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 666 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:12,257 INFO L242 Difference]: Finished difference. Result has 661 places, 666 transitions, 1340 flow [2022-04-18 16:34:12,258 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1340, PETRI_PLACES=661, PETRI_TRANSITIONS=666} [2022-04-18 16:34:12,260 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -8 predicate places. [2022-04-18 16:34:12,260 INFO L478 AbstractCegarLoop]: Abstraction has has 661 places, 666 transitions, 1340 flow [2022-04-18 16:34:12,261 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,261 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:12,262 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] [2022-04-18 16:34:12,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:34:12,262 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:12,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:12,262 INFO L85 PathProgramCache]: Analyzing trace with hash 96560048, now seen corresponding path program 1 times [2022-04-18 16:34:12,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:12,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174101031] [2022-04-18 16:34:12,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:12,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:12,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:12,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174101031] [2022-04-18 16:34:12,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174101031] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:12,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:12,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009595003] [2022-04-18 16:34:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:12,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:12,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:12,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:12,326 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-04-18 16:34:12,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 666 transitions, 1340 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:12,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-04-18 16:34:12,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:12,446 INFO L129 PetriNetUnfolder]: 15/801 cut-off events. [2022-04-18 16:34:12,447 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-04-18 16:34:12,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 801 events. 15/801 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2492 event pairs, 3 based on Foata normal form. 0/684 useless extension candidates. Maximal degree in co-relation 775. Up to 17 conditions per place. [2022-04-18 16:34:12,462 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/665 dead transitions. [2022-04-18 16:34:12,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 665 transitions, 1362 flow [2022-04-18 16:34:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:12,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-04-18 16:34:12,466 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-04-18 16:34:12,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-04-18 16:34:12,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-04-18 16:34:12,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:12,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-04-18 16:34:12,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,477 INFO L186 Difference]: Start difference. First operand has 661 places, 666 transitions, 1340 flow. Second operand 3 states and 2044 transitions. [2022-04-18 16:34:12,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 665 transitions, 1362 flow [2022-04-18 16:34:12,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 665 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:12,485 INFO L242 Difference]: Finished difference. Result has 660 places, 665 transitions, 1338 flow [2022-04-18 16:34:12,486 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=660, PETRI_TRANSITIONS=665} [2022-04-18 16:34:12,489 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -9 predicate places. [2022-04-18 16:34:12,489 INFO L478 AbstractCegarLoop]: Abstraction has has 660 places, 665 transitions, 1338 flow [2022-04-18 16:34:12,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,490 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:12,490 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] [2022-04-18 16:34:12,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:34:12,490 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:12,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:12,491 INFO L85 PathProgramCache]: Analyzing trace with hash 221972091, now seen corresponding path program 1 times [2022-04-18 16:34:12,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:12,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250079322] [2022-04-18 16:34:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:12,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:12,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:12,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250079322] [2022-04-18 16:34:12,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250079322] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:12,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:12,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:12,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238460747] [2022-04-18 16:34:12,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:12,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:12,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:12,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:12,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:12,549 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-04-18 16:34:12,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 665 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:12,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-04-18 16:34:12,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:12,725 INFO L129 PetriNetUnfolder]: 25/1004 cut-off events. [2022-04-18 16:34:12,725 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:34:12,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1004 events. 25/1004 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3766 event pairs, 12 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 1016. Up to 50 conditions per place. [2022-04-18 16:34:12,739 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/664 dead transitions. [2022-04-18 16:34:12,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 664 transitions, 1390 flow [2022-04-18 16:34:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-04-18 16:34:12,743 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-04-18 16:34:12,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-04-18 16:34:12,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-04-18 16:34:12,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:12,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-04-18 16:34:12,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,752 INFO L186 Difference]: Start difference. First operand has 660 places, 665 transitions, 1338 flow. Second operand 3 states and 2014 transitions. [2022-04-18 16:34:12,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 664 transitions, 1390 flow [2022-04-18 16:34:12,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 664 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:12,761 INFO L242 Difference]: Finished difference. Result has 659 places, 664 transitions, 1336 flow [2022-04-18 16:34:12,762 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1336, PETRI_PLACES=659, PETRI_TRANSITIONS=664} [2022-04-18 16:34:12,764 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -10 predicate places. [2022-04-18 16:34:12,764 INFO L478 AbstractCegarLoop]: Abstraction has has 659 places, 664 transitions, 1336 flow [2022-04-18 16:34:12,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,765 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:12,765 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 16:34:12,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:34:12,766 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1810124123, now seen corresponding path program 1 times [2022-04-18 16:34:12,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:12,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032534391] [2022-04-18 16:34:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:12,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:12,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:12,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032534391] [2022-04-18 16:34:12,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032534391] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:12,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:12,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:12,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993802153] [2022-04-18 16:34:12,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:12,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:12,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:12,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:12,823 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-04-18 16:34:12,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 664 transitions, 1336 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:12,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-04-18 16:34:12,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:12,956 INFO L129 PetriNetUnfolder]: 23/790 cut-off events. [2022-04-18 16:34:12,957 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-04-18 16:34:12,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 790 events. 23/790 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2883 event pairs, 12 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 782. Up to 49 conditions per place. [2022-04-18 16:34:12,969 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 24 selfloop transitions, 2 changer transitions 0/663 dead transitions. [2022-04-18 16:34:12,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 663 transitions, 1386 flow [2022-04-18 16:34:12,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:12,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:12,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2022-04-18 16:34:12,972 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9397759103641457 [2022-04-18 16:34:12,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2013 transitions. [2022-04-18 16:34:12,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2013 transitions. [2022-04-18 16:34:12,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:12,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2013 transitions. [2022-04-18 16:34:12,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,987 INFO L186 Difference]: Start difference. First operand has 659 places, 664 transitions, 1336 flow. Second operand 3 states and 2013 transitions. [2022-04-18 16:34:12,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 663 transitions, 1386 flow [2022-04-18 16:34:12,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 658 places, 663 transitions, 1382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:12,996 INFO L242 Difference]: Finished difference. Result has 658 places, 663 transitions, 1334 flow [2022-04-18 16:34:12,997 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=658, PETRI_TRANSITIONS=663} [2022-04-18 16:34:12,998 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -11 predicate places. [2022-04-18 16:34:12,999 INFO L478 AbstractCegarLoop]: Abstraction has has 658 places, 663 transitions, 1334 flow [2022-04-18 16:34:12,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:12,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:12,999 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] [2022-04-18 16:34:12,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:34:13,000 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:13,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:13,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2014656373, now seen corresponding path program 1 times [2022-04-18 16:34:13,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:13,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200607375] [2022-04-18 16:34:13,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:13,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:13,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:13,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200607375] [2022-04-18 16:34:13,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200607375] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:13,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:13,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:13,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903108686] [2022-04-18 16:34:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:13,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:13,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:13,048 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-04-18 16:34:13,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 658 places, 663 transitions, 1334 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:13,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-04-18 16:34:13,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:13,181 INFO L129 PetriNetUnfolder]: 30/892 cut-off events. [2022-04-18 16:34:13,181 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:34:13,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 892 events. 30/892 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3519 event pairs, 18 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 911. Up to 65 conditions per place. [2022-04-18 16:34:13,194 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/662 dead transitions. [2022-04-18 16:34:13,194 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 662 transitions, 1392 flow [2022-04-18 16:34:13,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:13,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-04-18 16:34:13,197 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-04-18 16:34:13,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-04-18 16:34:13,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-04-18 16:34:13,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:13,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-04-18 16:34:13,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,203 INFO L186 Difference]: Start difference. First operand has 658 places, 663 transitions, 1334 flow. Second operand 3 states and 2008 transitions. [2022-04-18 16:34:13,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 662 transitions, 1392 flow [2022-04-18 16:34:13,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 662 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:13,211 INFO L242 Difference]: Finished difference. Result has 657 places, 662 transitions, 1332 flow [2022-04-18 16:34:13,212 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=660, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1332, PETRI_PLACES=657, PETRI_TRANSITIONS=662} [2022-04-18 16:34:13,212 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -12 predicate places. [2022-04-18 16:34:13,212 INFO L478 AbstractCegarLoop]: Abstraction has has 657 places, 662 transitions, 1332 flow [2022-04-18 16:34:13,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,213 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:13,213 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] [2022-04-18 16:34:13,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:34:13,213 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:13,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:13,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1986039817, now seen corresponding path program 1 times [2022-04-18 16:34:13,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:13,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565214989] [2022-04-18 16:34:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:13,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:13,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565214989] [2022-04-18 16:34:13,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565214989] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:13,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:13,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:13,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811371251] [2022-04-18 16:34:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:13,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:13,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:13,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:13,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:13,240 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-04-18 16:34:13,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 662 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:13,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-04-18 16:34:13,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:13,377 INFO L129 PetriNetUnfolder]: 30/891 cut-off events. [2022-04-18 16:34:13,377 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-04-18 16:34:13,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 891 events. 30/891 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3911 event pairs, 18 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 885. Up to 65 conditions per place. [2022-04-18 16:34:13,390 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/661 dead transitions. [2022-04-18 16:34:13,390 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 661 transitions, 1390 flow [2022-04-18 16:34:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:13,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-04-18 16:34:13,393 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-04-18 16:34:13,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-04-18 16:34:13,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-04-18 16:34:13,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:13,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-04-18 16:34:13,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,421 INFO L186 Difference]: Start difference. First operand has 657 places, 662 transitions, 1332 flow. Second operand 3 states and 2008 transitions. [2022-04-18 16:34:13,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 661 transitions, 1390 flow [2022-04-18 16:34:13,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 661 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:13,429 INFO L242 Difference]: Finished difference. Result has 656 places, 661 transitions, 1330 flow [2022-04-18 16:34:13,430 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1330, PETRI_PLACES=656, PETRI_TRANSITIONS=661} [2022-04-18 16:34:13,430 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -13 predicate places. [2022-04-18 16:34:13,430 INFO L478 AbstractCegarLoop]: Abstraction has has 656 places, 661 transitions, 1330 flow [2022-04-18 16:34:13,431 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,431 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:13,431 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] [2022-04-18 16:34:13,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:34:13,431 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:13,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1467574070, now seen corresponding path program 1 times [2022-04-18 16:34:13,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:13,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182352219] [2022-04-18 16:34:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:13,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:13,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:13,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182352219] [2022-04-18 16:34:13,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182352219] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:13,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:13,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:13,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023662977] [2022-04-18 16:34:13,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:13,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:13,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:13,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:13,455 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 671 out of 714 [2022-04-18 16:34:13,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 661 transitions, 1330 flow. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:13,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 671 of 714 [2022-04-18 16:34:13,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:13,649 INFO L129 PetriNetUnfolder]: 37/1934 cut-off events. [2022-04-18 16:34:13,649 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:34:13,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1934 events. 37/1934 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11930 event pairs, 15 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1906. Up to 47 conditions per place. [2022-04-18 16:34:13,667 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 16 selfloop transitions, 2 changer transitions 0/660 dead transitions. [2022-04-18 16:34:13,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 660 transitions, 1364 flow [2022-04-18 16:34:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2032 transitions. [2022-04-18 16:34:13,671 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9486461251167133 [2022-04-18 16:34:13,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2032 transitions. [2022-04-18 16:34:13,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2032 transitions. [2022-04-18 16:34:13,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:13,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2032 transitions. [2022-04-18 16:34:13,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,677 INFO L186 Difference]: Start difference. First operand has 656 places, 661 transitions, 1330 flow. Second operand 3 states and 2032 transitions. [2022-04-18 16:34:13,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 660 transitions, 1364 flow [2022-04-18 16:34:13,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 660 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:13,685 INFO L242 Difference]: Finished difference. Result has 655 places, 660 transitions, 1328 flow [2022-04-18 16:34:13,685 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1324, PETRI_DIFFERENCE_MINUEND_PLACES=653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=655, PETRI_TRANSITIONS=660} [2022-04-18 16:34:13,686 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -14 predicate places. [2022-04-18 16:34:13,686 INFO L478 AbstractCegarLoop]: Abstraction has has 655 places, 660 transitions, 1328 flow [2022-04-18 16:34:13,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,687 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:13,687 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:13,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:34:13,687 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1624605024, now seen corresponding path program 1 times [2022-04-18 16:34:13,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:13,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874198500] [2022-04-18 16:34:13,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:13,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:13,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:13,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874198500] [2022-04-18 16:34:13,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874198500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:13,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:13,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:13,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609216733] [2022-04-18 16:34:13,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:13,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:13,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:13,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:13,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:13,733 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 674 out of 714 [2022-04-18 16:34:13,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 660 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:13,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 674 of 714 [2022-04-18 16:34:13,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:13,918 INFO L129 PetriNetUnfolder]: 28/1711 cut-off events. [2022-04-18 16:34:13,918 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:34:13,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1711 events. 28/1711 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 9743 event pairs, 8 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 1654. Up to 26 conditions per place. [2022-04-18 16:34:13,935 INFO L132 encePairwiseOnDemand]: 710/714 looper letters, 11 selfloop transitions, 1 changer transitions 0/657 dead transitions. [2022-04-18 16:34:13,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 657 transitions, 1346 flow [2022-04-18 16:34:13,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:13,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2037 transitions. [2022-04-18 16:34:13,938 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9509803921568627 [2022-04-18 16:34:13,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2037 transitions. [2022-04-18 16:34:13,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2037 transitions. [2022-04-18 16:34:13,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:13,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2037 transitions. [2022-04-18 16:34:13,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,945 INFO L186 Difference]: Start difference. First operand has 655 places, 660 transitions, 1328 flow. Second operand 3 states and 2037 transitions. [2022-04-18 16:34:13,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 657 transitions, 1346 flow [2022-04-18 16:34:13,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 657 transitions, 1342 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:13,952 INFO L242 Difference]: Finished difference. Result has 652 places, 657 transitions, 1320 flow [2022-04-18 16:34:13,953 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=656, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1320, PETRI_PLACES=652, PETRI_TRANSITIONS=657} [2022-04-18 16:34:13,954 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-04-18 16:34:13,954 INFO L478 AbstractCegarLoop]: Abstraction has has 652 places, 657 transitions, 1320 flow [2022-04-18 16:34:13,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,955 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:13,955 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:13,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:34:13,955 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash -644716200, now seen corresponding path program 1 times [2022-04-18 16:34:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:13,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145366158] [2022-04-18 16:34:13,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:13,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:13,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145366158] [2022-04-18 16:34:13,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145366158] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:13,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:13,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:13,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367474175] [2022-04-18 16:34:13,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:13,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:13,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:13,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:13,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:13,984 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-04-18 16:34:13,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 657 transitions, 1320 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:13,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:13,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-04-18 16:34:13,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:14,307 INFO L129 PetriNetUnfolder]: 141/2668 cut-off events. [2022-04-18 16:34:14,308 INFO L130 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-04-18 16:34:14,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2668 events. 141/2668 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18642 event pairs, 99 based on Foata normal form. 0/2235 useless extension candidates. Maximal degree in co-relation 2815. Up to 224 conditions per place. [2022-04-18 16:34:14,333 INFO L132 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/656 dead transitions. [2022-04-18 16:34:14,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 656 transitions, 1372 flow [2022-04-18 16:34:14,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-04-18 16:34:14,337 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-04-18 16:34:14,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-04-18 16:34:14,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-04-18 16:34:14,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:14,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-04-18 16:34:14,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:14,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:14,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:14,343 INFO L186 Difference]: Start difference. First operand has 652 places, 657 transitions, 1320 flow. Second operand 3 states and 2014 transitions. [2022-04-18 16:34:14,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 656 transitions, 1372 flow [2022-04-18 16:34:14,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 656 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:14,350 INFO L242 Difference]: Finished difference. Result has 652 places, 656 transitions, 1321 flow [2022-04-18 16:34:14,351 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1321, PETRI_PLACES=652, PETRI_TRANSITIONS=656} [2022-04-18 16:34:14,352 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-04-18 16:34:14,352 INFO L478 AbstractCegarLoop]: Abstraction has has 652 places, 656 transitions, 1321 flow [2022-04-18 16:34:14,352 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:14,353 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:14,353 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] [2022-04-18 16:34:14,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:34:14,353 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:14,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:14,354 INFO L85 PathProgramCache]: Analyzing trace with hash 139646347, now seen corresponding path program 1 times [2022-04-18 16:34:14,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:14,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133160768] [2022-04-18 16:34:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:14,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:14,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133160768] [2022-04-18 16:34:14,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133160768] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:14,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:14,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:14,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145521769] [2022-04-18 16:34:14,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:14,438 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:14,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:14,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:14,442 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 714 [2022-04-18 16:34:14,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 656 transitions, 1321 flow. Second operand has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:14,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:14,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 714 [2022-04-18 16:34:14,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:17,485 INFO L129 PetriNetUnfolder]: 4986/24312 cut-off events. [2022-04-18 16:34:17,485 INFO L130 PetriNetUnfolder]: For 19/112 co-relation queries the response was YES. [2022-04-18 16:34:17,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31606 conditions, 24312 events. 4986/24312 cut-off events. For 19/112 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 282925 event pairs, 4572 based on Foata normal form. 0/20395 useless extension candidates. Maximal degree in co-relation 31514. Up to 7264 conditions per place. [2022-04-18 16:34:17,737 INFO L132 encePairwiseOnDemand]: 708/714 looper letters, 63 selfloop transitions, 5 changer transitions 0/655 dead transitions. [2022-04-18 16:34:17,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 655 transitions, 1455 flow [2022-04-18 16:34:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:17,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3795 transitions. [2022-04-18 16:34:17,743 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8858543417366946 [2022-04-18 16:34:17,744 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3795 transitions. [2022-04-18 16:34:17,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3795 transitions. [2022-04-18 16:34:17,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:17,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3795 transitions. [2022-04-18 16:34:17,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 632.5) internal successors, (3795), 6 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:17,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:17,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:17,756 INFO L186 Difference]: Start difference. First operand has 652 places, 656 transitions, 1321 flow. Second operand 6 states and 3795 transitions. [2022-04-18 16:34:17,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 655 transitions, 1455 flow [2022-04-18 16:34:17,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 655 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:17,765 INFO L242 Difference]: Finished difference. Result has 654 places, 655 transitions, 1325 flow [2022-04-18 16:34:17,766 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1325, PETRI_PLACES=654, PETRI_TRANSITIONS=655} [2022-04-18 16:34:17,767 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -15 predicate places. [2022-04-18 16:34:17,767 INFO L478 AbstractCegarLoop]: Abstraction has has 654 places, 655 transitions, 1325 flow [2022-04-18 16:34:17,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:17,769 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:17,769 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] [2022-04-18 16:34:17,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:34:17,769 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:17,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1881242709, now seen corresponding path program 1 times [2022-04-18 16:34:17,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:17,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868190984] [2022-04-18 16:34:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:17,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:17,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:17,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868190984] [2022-04-18 16:34:17,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868190984] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:17,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:17,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:17,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960829862] [2022-04-18 16:34:17,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:17,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:17,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:17,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:17,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:17,803 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 714 [2022-04-18 16:34:17,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 655 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:17,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:17,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 714 [2022-04-18 16:34:17,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:17,983 INFO L129 PetriNetUnfolder]: 30/1100 cut-off events. [2022-04-18 16:34:17,984 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:34:17,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 1100 events. 30/1100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5062 event pairs, 8 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 1171. Up to 44 conditions per place. [2022-04-18 16:34:17,999 INFO L132 encePairwiseOnDemand]: 699/714 looper letters, 30 selfloop transitions, 5 changer transitions 0/648 dead transitions. [2022-04-18 16:34:17,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 648 transitions, 1382 flow [2022-04-18 16:34:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:18,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1986 transitions. [2022-04-18 16:34:18,003 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.927170868347339 [2022-04-18 16:34:18,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1986 transitions. [2022-04-18 16:34:18,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1986 transitions. [2022-04-18 16:34:18,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:18,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1986 transitions. [2022-04-18 16:34:18,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.0) internal successors, (1986), 3 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,011 INFO L186 Difference]: Start difference. First operand has 654 places, 655 transitions, 1325 flow. Second operand 3 states and 1986 transitions. [2022-04-18 16:34:18,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 648 transitions, 1382 flow [2022-04-18 16:34:18,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 648 transitions, 1372 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:34:18,025 INFO L242 Difference]: Finished difference. Result has 642 places, 647 transitions, 1318 flow [2022-04-18 16:34:18,026 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=642, PETRI_TRANSITIONS=647} [2022-04-18 16:34:18,027 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -27 predicate places. [2022-04-18 16:34:18,027 INFO L478 AbstractCegarLoop]: Abstraction has has 642 places, 647 transitions, 1318 flow [2022-04-18 16:34:18,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,028 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:18,029 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] [2022-04-18 16:34:18,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:34:18,029 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:18,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:18,029 INFO L85 PathProgramCache]: Analyzing trace with hash 307031320, now seen corresponding path program 1 times [2022-04-18 16:34:18,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:18,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397931735] [2022-04-18 16:34:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:18,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397931735] [2022-04-18 16:34:18,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397931735] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:18,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:18,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395122658] [2022-04-18 16:34:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:18,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:18,078 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-04-18 16:34:18,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 647 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:18,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-04-18 16:34:18,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:18,221 INFO L129 PetriNetUnfolder]: 29/887 cut-off events. [2022-04-18 16:34:18,221 INFO L130 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-04-18 16:34:18,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 887 events. 29/887 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3650 event pairs, 8 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 863. Up to 34 conditions per place. [2022-04-18 16:34:18,233 INFO L132 encePairwiseOnDemand]: 704/714 looper letters, 20 selfloop transitions, 5 changer transitions 0/645 dead transitions. [2022-04-18 16:34:18,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 645 transitions, 1365 flow [2022-04-18 16:34:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:18,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:18,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-04-18 16:34:18,237 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-04-18 16:34:18,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-04-18 16:34:18,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-04-18 16:34:18,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:18,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-04-18 16:34:18,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,244 INFO L186 Difference]: Start difference. First operand has 642 places, 647 transitions, 1318 flow. Second operand 3 states and 2016 transitions. [2022-04-18 16:34:18,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 645 transitions, 1365 flow [2022-04-18 16:34:18,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 645 transitions, 1360 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:18,253 INFO L242 Difference]: Finished difference. Result has 639 places, 644 transitions, 1326 flow [2022-04-18 16:34:18,254 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1326, PETRI_PLACES=639, PETRI_TRANSITIONS=644} [2022-04-18 16:34:18,254 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -30 predicate places. [2022-04-18 16:34:18,255 INFO L478 AbstractCegarLoop]: Abstraction has has 639 places, 644 transitions, 1326 flow [2022-04-18 16:34:18,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,255 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:18,256 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] [2022-04-18 16:34:18,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:34:18,256 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash 953366865, now seen corresponding path program 1 times [2022-04-18 16:34:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:18,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360712477] [2022-04-18 16:34:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:18,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:18,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360712477] [2022-04-18 16:34:18,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360712477] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:18,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:18,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:18,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697032622] [2022-04-18 16:34:18,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:18,288 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:18,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:18,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:18,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:18,291 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-04-18 16:34:18,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 644 transitions, 1326 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:18,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-04-18 16:34:18,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:18,639 INFO L129 PetriNetUnfolder]: 44/1518 cut-off events. [2022-04-18 16:34:18,640 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-04-18 16:34:18,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1518 events. 44/1518 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6734 event pairs, 6 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1541. Up to 32 conditions per place. [2022-04-18 16:34:18,655 INFO L132 encePairwiseOnDemand]: 704/714 looper letters, 18 selfloop transitions, 6 changer transitions 0/644 dead transitions. [2022-04-18 16:34:18,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 644 transitions, 1376 flow [2022-04-18 16:34:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-04-18 16:34:18,658 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-04-18 16:34:18,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-04-18 16:34:18,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-04-18 16:34:18,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:18,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-04-18 16:34:18,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,667 INFO L186 Difference]: Start difference. First operand has 639 places, 644 transitions, 1326 flow. Second operand 3 states and 2023 transitions. [2022-04-18 16:34:18,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 644 transitions, 1376 flow [2022-04-18 16:34:18,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 644 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:18,678 INFO L242 Difference]: Finished difference. Result has 637 places, 642 transitions, 1339 flow [2022-04-18 16:34:18,679 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=637, PETRI_TRANSITIONS=642} [2022-04-18 16:34:18,680 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -32 predicate places. [2022-04-18 16:34:18,680 INFO L478 AbstractCegarLoop]: Abstraction has has 637 places, 642 transitions, 1339 flow [2022-04-18 16:34:18,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,681 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:18,681 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] [2022-04-18 16:34:18,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:34:18,681 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:18,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash 221688834, now seen corresponding path program 1 times [2022-04-18 16:34:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:18,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085651467] [2022-04-18 16:34:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:18,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:18,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085651467] [2022-04-18 16:34:18,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085651467] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:18,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:18,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168278368] [2022-04-18 16:34:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:18,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:18,711 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-04-18 16:34:18,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 642 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:18,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:18,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-04-18 16:34:18,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:18,971 INFO L129 PetriNetUnfolder]: 60/1994 cut-off events. [2022-04-18 16:34:18,972 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-04-18 16:34:18,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 1994 events. 60/1994 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 11968 event pairs, 6 based on Foata normal form. 1/1742 useless extension candidates. Maximal degree in co-relation 2058. Up to 45 conditions per place. [2022-04-18 16:34:19,006 INFO L132 encePairwiseOnDemand]: 704/714 looper letters, 17 selfloop transitions, 5 changer transitions 5/643 dead transitions. [2022-04-18 16:34:19,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 643 transitions, 1392 flow [2022-04-18 16:34:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:19,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-04-18 16:34:19,010 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-04-18 16:34:19,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-04-18 16:34:19,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-04-18 16:34:19,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:19,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-04-18 16:34:19,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,016 INFO L186 Difference]: Start difference. First operand has 637 places, 642 transitions, 1339 flow. Second operand 3 states and 2023 transitions. [2022-04-18 16:34:19,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 643 transitions, 1392 flow [2022-04-18 16:34:19,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 643 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:19,024 INFO L242 Difference]: Finished difference. Result has 635 places, 635 transitions, 1335 flow [2022-04-18 16:34:19,025 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1335, PETRI_PLACES=635, PETRI_TRANSITIONS=635} [2022-04-18 16:34:19,025 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-04-18 16:34:19,025 INFO L478 AbstractCegarLoop]: Abstraction has has 635 places, 635 transitions, 1335 flow [2022-04-18 16:34:19,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,026 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:19,026 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] [2022-04-18 16:34:19,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:34:19,026 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:19,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash 339785333, now seen corresponding path program 1 times [2022-04-18 16:34:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:19,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773068730] [2022-04-18 16:34:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:19,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:19,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:19,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773068730] [2022-04-18 16:34:19,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773068730] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:19,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:19,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767439066] [2022-04-18 16:34:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:19,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:19,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:19,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:19,058 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-04-18 16:34:19,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 635 transitions, 1335 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:19,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-04-18 16:34:19,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:19,618 INFO L129 PetriNetUnfolder]: 151/4028 cut-off events. [2022-04-18 16:34:19,619 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-04-18 16:34:19,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 4028 events. 151/4028 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 34240 event pairs, 40 based on Foata normal form. 0/3542 useless extension candidates. Maximal degree in co-relation 4409. Up to 158 conditions per place. [2022-04-18 16:34:19,644 INFO L132 encePairwiseOnDemand]: 705/714 looper letters, 20 selfloop transitions, 3 changer transitions 0/632 dead transitions. [2022-04-18 16:34:19,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 632 transitions, 1377 flow [2022-04-18 16:34:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2015 transitions. [2022-04-18 16:34:19,647 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9407096171802054 [2022-04-18 16:34:19,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2015 transitions. [2022-04-18 16:34:19,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2015 transitions. [2022-04-18 16:34:19,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:19,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2015 transitions. [2022-04-18 16:34:19,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.6666666666666) internal successors, (2015), 3 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,653 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,653 INFO L186 Difference]: Start difference. First operand has 635 places, 635 transitions, 1335 flow. Second operand 3 states and 2015 transitions. [2022-04-18 16:34:19,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 632 transitions, 1377 flow [2022-04-18 16:34:19,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 632 transitions, 1372 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:19,661 INFO L242 Difference]: Finished difference. Result has 626 places, 630 transitions, 1331 flow [2022-04-18 16:34:19,662 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1331, PETRI_PLACES=626, PETRI_TRANSITIONS=630} [2022-04-18 16:34:19,662 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -43 predicate places. [2022-04-18 16:34:19,662 INFO L478 AbstractCegarLoop]: Abstraction has has 626 places, 630 transitions, 1331 flow [2022-04-18 16:34:19,663 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,663 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:19,663 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] [2022-04-18 16:34:19,663 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:34:19,663 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:19,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:19,664 INFO L85 PathProgramCache]: Analyzing trace with hash 811159128, now seen corresponding path program 1 times [2022-04-18 16:34:19,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:19,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794597630] [2022-04-18 16:34:19,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:19,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:19,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:19,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794597630] [2022-04-18 16:34:19,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794597630] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:19,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:19,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:19,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816182063] [2022-04-18 16:34:19,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:19,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:19,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:19,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:19,688 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-04-18 16:34:19,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 630 transitions, 1331 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:19,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:19,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-04-18 16:34:19,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:20,193 INFO L129 PetriNetUnfolder]: 126/3877 cut-off events. [2022-04-18 16:34:20,194 INFO L130 PetriNetUnfolder]: For 40/44 co-relation queries the response was YES. [2022-04-18 16:34:20,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4363 conditions, 3877 events. 126/3877 cut-off events. For 40/44 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 32753 event pairs, 6 based on Foata normal form. 0/3486 useless extension candidates. Maximal degree in co-relation 4265. Up to 176 conditions per place. [2022-04-18 16:34:20,236 INFO L132 encePairwiseOnDemand]: 705/714 looper letters, 21 selfloop transitions, 3 changer transitions 0/628 dead transitions. [2022-04-18 16:34:20,236 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 628 transitions, 1378 flow [2022-04-18 16:34:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-04-18 16:34:20,239 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-04-18 16:34:20,239 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-04-18 16:34:20,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-04-18 16:34:20,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:20,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-04-18 16:34:20,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:20,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:20,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:20,244 INFO L186 Difference]: Start difference. First operand has 626 places, 630 transitions, 1331 flow. Second operand 3 states and 2016 transitions. [2022-04-18 16:34:20,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 628 transitions, 1378 flow [2022-04-18 16:34:20,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 628 transitions, 1375 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:20,252 INFO L242 Difference]: Finished difference. Result has 622 places, 625 transitions, 1329 flow [2022-04-18 16:34:20,252 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1329, PETRI_PLACES=622, PETRI_TRANSITIONS=625} [2022-04-18 16:34:20,252 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-04-18 16:34:20,253 INFO L478 AbstractCegarLoop]: Abstraction has has 622 places, 625 transitions, 1329 flow [2022-04-18 16:34:20,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:20,253 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:20,253 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:20,253 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:34:20,253 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:20,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash -182893953, now seen corresponding path program 1 times [2022-04-18 16:34:20,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:20,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926484539] [2022-04-18 16:34:20,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:20,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:20,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926484539] [2022-04-18 16:34:20,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926484539] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:20,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:20,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320011805] [2022-04-18 16:34:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:20,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:20,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:20,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:20,277 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-04-18 16:34:20,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 625 transitions, 1329 flow. Second operand has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:20,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:20,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-04-18 16:34:20,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:21,651 INFO L129 PetriNetUnfolder]: 354/9746 cut-off events. [2022-04-18 16:34:21,651 INFO L130 PetriNetUnfolder]: For 59/63 co-relation queries the response was YES. [2022-04-18 16:34:21,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10938 conditions, 9746 events. 354/9746 cut-off events. For 59/63 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 99967 event pairs, 80 based on Foata normal form. 0/8810 useless extension candidates. Maximal degree in co-relation 10841. Up to 467 conditions per place. [2022-04-18 16:34:21,750 INFO L132 encePairwiseOnDemand]: 706/714 looper letters, 19 selfloop transitions, 2 changer transitions 0/623 dead transitions. [2022-04-18 16:34:21,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 623 transitions, 1369 flow [2022-04-18 16:34:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2022 transitions. [2022-04-18 16:34:21,755 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9439775910364145 [2022-04-18 16:34:21,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2022 transitions. [2022-04-18 16:34:21,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2022 transitions. [2022-04-18 16:34:21,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:21,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2022 transitions. [2022-04-18 16:34:21,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,770 INFO L186 Difference]: Start difference. First operand has 622 places, 625 transitions, 1329 flow. Second operand 3 states and 2022 transitions. [2022-04-18 16:34:21,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 623 transitions, 1369 flow [2022-04-18 16:34:21,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 623 transitions, 1366 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:21,780 INFO L242 Difference]: Finished difference. Result has 618 places, 621 transitions, 1328 flow [2022-04-18 16:34:21,781 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=618, PETRI_TRANSITIONS=621} [2022-04-18 16:34:21,781 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -51 predicate places. [2022-04-18 16:34:21,781 INFO L478 AbstractCegarLoop]: Abstraction has has 618 places, 621 transitions, 1328 flow [2022-04-18 16:34:21,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,782 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:21,782 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:21,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:34:21,782 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:21,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1977079987, now seen corresponding path program 1 times [2022-04-18 16:34:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:21,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442795076] [2022-04-18 16:34:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:21,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:21,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:21,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442795076] [2022-04-18 16:34:21,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442795076] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:21,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:21,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:21,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175753241] [2022-04-18 16:34:21,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:21,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:21,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:21,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:21,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:21,862 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 714 [2022-04-18 16:34:21,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 621 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:21,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 714 [2022-04-18 16:34:21,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:31,766 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [623#L98-4true, Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, 155#L64-3true, Black: 747#true, 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:31,766 INFO L384 tUnfolder$Statistics]: this new event has 366 ancestors and is cut-off event [2022-04-18 16:34:31,766 INFO L387 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-04-18 16:34:31,767 INFO L387 tUnfolder$Statistics]: existing Event has 359 ancestors and is cut-off event [2022-04-18 16:34:31,767 INFO L387 tUnfolder$Statistics]: existing Event has 265 ancestors and is cut-off event [2022-04-18 16:34:31,840 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [75#L99-1true, Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, 155#L64-3true, Black: 747#true, 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:31,840 INFO L384 tUnfolder$Statistics]: this new event has 369 ancestors and is cut-off event [2022-04-18 16:34:31,841 INFO L387 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-04-18 16:34:31,841 INFO L387 tUnfolder$Statistics]: existing Event has 362 ancestors and is cut-off event [2022-04-18 16:34:31,841 INFO L387 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-04-18 16:34:31,881 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [623#L98-4true, Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, 155#L64-3true, Black: 747#true, Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:31,881 INFO L384 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-04-18 16:34:31,881 INFO L387 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-04-18 16:34:31,881 INFO L387 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-04-18 16:34:31,881 INFO L387 tUnfolder$Statistics]: existing Event has 176 ancestors and is cut-off event [2022-04-18 16:34:31,891 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, Black: 747#true, 757#true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true, 635#L99-3true]) [2022-04-18 16:34:31,891 INFO L384 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-04-18 16:34:31,891 INFO L387 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-04-18 16:34:31,891 INFO L387 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-04-18 16:34:31,903 INFO L387 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-04-18 16:34:32,046 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 757#true, 138#L99-4true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:32,047 INFO L384 tUnfolder$Statistics]: this new event has 372 ancestors and is cut-off event [2022-04-18 16:34:32,047 INFO L387 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-04-18 16:34:32,047 INFO L387 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-04-18 16:34:32,047 INFO L387 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-04-18 16:34:32,088 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [75#L99-1true, Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, Black: 742#true, 155#L64-3true, Black: 747#true, Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:32,088 INFO L384 tUnfolder$Statistics]: this new event has 374 ancestors and is cut-off event [2022-04-18 16:34:32,088 INFO L387 tUnfolder$Statistics]: existing Event has 367 ancestors and is cut-off event [2022-04-18 16:34:32,088 INFO L387 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-04-18 16:34:32,089 INFO L387 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-04-18 16:34:32,138 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, Black: 747#true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), Black: 757#true, 774#(= |#race~A~0| 0), 752#true, 635#L99-3true, Black: 762#true]) [2022-04-18 16:34:32,139 INFO L384 tUnfolder$Statistics]: this new event has 376 ancestors and is cut-off event [2022-04-18 16:34:32,139 INFO L387 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-04-18 16:34:32,140 INFO L387 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-04-18 16:34:32,140 INFO L387 tUnfolder$Statistics]: existing Event has 369 ancestors and is cut-off event [2022-04-18 16:34:32,162 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 138#L99-4true, Black: 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:32,163 INFO L384 tUnfolder$Statistics]: this new event has 377 ancestors and is cut-off event [2022-04-18 16:34:32,163 INFO L387 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-04-18 16:34:32,163 INFO L387 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-04-18 16:34:32,163 INFO L387 tUnfolder$Statistics]: existing Event has 370 ancestors and is cut-off event [2022-04-18 16:34:32,256 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, Black: 747#true, 757#true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true, 635#L99-3true]) [2022-04-18 16:34:32,256 INFO L384 tUnfolder$Statistics]: this new event has 378 ancestors and is cut-off event [2022-04-18 16:34:32,257 INFO L387 tUnfolder$Statistics]: existing Event has 371 ancestors and is cut-off event [2022-04-18 16:34:32,257 INFO L387 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-04-18 16:34:32,257 INFO L387 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-04-18 16:34:32,257 INFO L387 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-04-18 16:34:32,267 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 630#L47-3true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, Black: 747#true, 757#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 138#L99-4true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:32,268 INFO L384 tUnfolder$Statistics]: this new event has 379 ancestors and is cut-off event [2022-04-18 16:34:32,268 INFO L387 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-04-18 16:34:32,268 INFO L387 tUnfolder$Statistics]: existing Event has 372 ancestors and is cut-off event [2022-04-18 16:34:32,268 INFO L387 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-04-18 16:34:32,268 INFO L387 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-04-18 16:34:32,426 INFO L129 PetriNetUnfolder]: 15345/74692 cut-off events. [2022-04-18 16:34:32,427 INFO L130 PetriNetUnfolder]: For 59/989 co-relation queries the response was YES. [2022-04-18 16:34:32,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102500 conditions, 74692 events. 15345/74692 cut-off events. For 59/989 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 1029314 event pairs, 4572 based on Foata normal form. 48/66516 useless extension candidates. Maximal degree in co-relation 102400. Up to 7345 conditions per place. [2022-04-18 16:34:33,083 INFO L132 encePairwiseOnDemand]: 709/714 looper letters, 199 selfloop transitions, 4 changer transitions 0/764 dead transitions. [2022-04-18 16:34:33,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 764 transitions, 2020 flow [2022-04-18 16:34:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:33,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3960 transitions. [2022-04-18 16:34:33,115 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9243697478991597 [2022-04-18 16:34:33,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3960 transitions. [2022-04-18 16:34:33,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3960 transitions. [2022-04-18 16:34:33,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:33,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3960 transitions. [2022-04-18 16:34:33,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 660.0) internal successors, (3960), 6 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:33,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:33,138 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:33,138 INFO L186 Difference]: Start difference. First operand has 618 places, 621 transitions, 1328 flow. Second operand 6 states and 3960 transitions. [2022-04-18 16:34:33,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 764 transitions, 2020 flow [2022-04-18 16:34:33,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 764 transitions, 2020 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:34:33,170 INFO L242 Difference]: Finished difference. Result has 622 places, 620 transitions, 1334 flow [2022-04-18 16:34:33,171 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=622, PETRI_TRANSITIONS=620} [2022-04-18 16:34:33,171 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-04-18 16:34:33,171 INFO L478 AbstractCegarLoop]: Abstraction has has 622 places, 620 transitions, 1334 flow [2022-04-18 16:34:33,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:33,172 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:33,172 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:33,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:34:33,172 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:33,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1726403402, now seen corresponding path program 1 times [2022-04-18 16:34:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:33,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386504147] [2022-04-18 16:34:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:33,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:33,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:33,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386504147] [2022-04-18 16:34:33,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386504147] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:33,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:33,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:33,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909551593] [2022-04-18 16:34:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:33,242 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:33,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:33,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:33,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:33,246 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 714 [2022-04-18 16:34:33,248 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 620 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 619.0) internal successors, (3714), 6 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:33,248 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:33,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 714 [2022-04-18 16:34:33,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:47,628 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][250], [Black: 767#true, 630#L47-3true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 155#L64-3true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 747#true, 757#true, 472#L99-2true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-04-18 16:34:47,629 INFO L384 tUnfolder$Statistics]: this new event has 363 ancestors and is cut-off event [2022-04-18 16:34:47,629 INFO L387 tUnfolder$Statistics]: existing Event has 175 ancestors and is cut-off event [2022-04-18 16:34:47,629 INFO L387 tUnfolder$Statistics]: existing Event has 269 ancestors and is cut-off event [2022-04-18 16:34:47,629 INFO L387 tUnfolder$Statistics]: existing Event has 269 ancestors and is cut-off event [2022-04-18 16:34:47,690 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][250], [Black: 767#true, 630#L47-3true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), 155#L64-3true, Black: 747#true, 757#true, Black: 752#true, 472#L99-2true, 774#(= |#race~A~0| 0), Black: 762#true]) [2022-04-18 16:34:47,691 INFO L384 tUnfolder$Statistics]: this new event has 368 ancestors and is cut-off event [2022-04-18 16:34:47,691 INFO L387 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-04-18 16:34:47,691 INFO L387 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-04-18 16:34:47,691 INFO L387 tUnfolder$Statistics]: existing Event has 180 ancestors and is cut-off event [2022-04-18 16:34:47,695 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][250], [Black: 767#true, 630#L47-3true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), 155#L64-3true, Black: 747#true, 472#L99-2true, 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-04-18 16:34:47,695 INFO L384 tUnfolder$Statistics]: this new event has 368 ancestors and is cut-off event [2022-04-18 16:34:47,695 INFO L387 tUnfolder$Statistics]: existing Event has 180 ancestors and is cut-off event [2022-04-18 16:34:47,695 INFO L387 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-04-18 16:34:47,695 INFO L387 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-04-18 16:34:47,748 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][250], [Black: 767#true, 630#L47-3true, 784#true, 729#(= |#race~N~0| 0), Black: 772#true, Black: 742#true, 779#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), 155#L64-3true, Black: 747#true, Black: 752#true, 472#L99-2true, Black: 757#true, 774#(= |#race~A~0| 0), Black: 762#true]) [2022-04-18 16:34:47,749 INFO L384 tUnfolder$Statistics]: this new event has 373 ancestors and is cut-off event [2022-04-18 16:34:47,749 INFO L387 tUnfolder$Statistics]: existing Event has 279 ancestors and is cut-off event [2022-04-18 16:34:47,749 INFO L387 tUnfolder$Statistics]: existing Event has 279 ancestors and is cut-off event [2022-04-18 16:34:47,749 INFO L387 tUnfolder$Statistics]: existing Event has 185 ancestors and is cut-off event [2022-04-18 16:34:47,882 INFO L129 PetriNetUnfolder]: 20169/110848 cut-off events. [2022-04-18 16:34:47,883 INFO L130 PetriNetUnfolder]: For 7378/7500 co-relation queries the response was YES. [2022-04-18 16:34:48,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153455 conditions, 110848 events. 20169/110848 cut-off events. For 7378/7500 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 1667538 event pairs, 6211 based on Foata normal form. 0/100295 useless extension candidates. Maximal degree in co-relation 153353. Up to 15816 conditions per place. [2022-04-18 16:34:48,969 INFO L132 encePairwiseOnDemand]: 706/714 looper letters, 170 selfloop transitions, 5 changer transitions 0/725 dead transitions. [2022-04-18 16:34:48,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 725 transitions, 1930 flow [2022-04-18 16:34:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3880 transitions. [2022-04-18 16:34:48,975 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9056956115779645 [2022-04-18 16:34:48,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3880 transitions. [2022-04-18 16:34:48,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3880 transitions. [2022-04-18 16:34:48,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:48,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3880 transitions. [2022-04-18 16:34:48,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 646.6666666666666) internal successors, (3880), 6 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,982 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:48,983 INFO L186 Difference]: Start difference. First operand has 622 places, 620 transitions, 1334 flow. Second operand 6 states and 3880 transitions. [2022-04-18 16:34:48,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 725 transitions, 1930 flow [2022-04-18 16:34:49,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 725 transitions, 1895 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:34:49,032 INFO L242 Difference]: Finished difference. Result has 620 places, 617 transitions, 1331 flow [2022-04-18 16:34:49,033 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1321, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1331, PETRI_PLACES=620, PETRI_TRANSITIONS=617} [2022-04-18 16:34:49,033 INFO L335 CegarLoopForPetriNet]: 669 programPoint places, -49 predicate places. [2022-04-18 16:34:49,033 INFO L478 AbstractCegarLoop]: Abstraction has has 620 places, 617 transitions, 1331 flow [2022-04-18 16:34:49,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 619.0) internal successors, (3714), 6 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:49,034 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:49,034 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:49,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:34:49,034 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:34:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2048121129, now seen corresponding path program 1 times [2022-04-18 16:34:49,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:49,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138324579] [2022-04-18 16:34:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:49,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:49,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:49,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138324579] [2022-04-18 16:34:49,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138324579] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:49,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:49,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:49,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432634422] [2022-04-18 16:34:49,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:49,145 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:49,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:49,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:49,148 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 714 [2022-04-18 16:34:49,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 617 transitions, 1331 flow. Second operand has 6 states, 6 states have (on average 619.1666666666666) internal successors, (3715), 6 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:49,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:49,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 714 [2022-04-18 16:34:49,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand