./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.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 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:53,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:53,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:53,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:53,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:53,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:53,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:53,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:53,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:53,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:53,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:53,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:53,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:53,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:53,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:53,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:53,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:53,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:53,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:53,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:53,401 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:53,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:53,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:53,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:53,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:53,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:53,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:53,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:53,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:53,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:53,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:53,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:53,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:53,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:53,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:53,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:53,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:53,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:53,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:53,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:53,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:53,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:53,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:53,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:53,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:53,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:53,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:53,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:53,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:53,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:53,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:53,438 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:53,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:53,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:53,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:53,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:53,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:53,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:53,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:53,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:53,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:53,440 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:53,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:53,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:53,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:53,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:53,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:53,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:53,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:53,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:53,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:53,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:53,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:53,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:53,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:53,443 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:53,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:53,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:53,443 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 [2022-04-18 16:36:53,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:53,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:53,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:53,638 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:53,638 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:53,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c [2022-04-18 16:36:53,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb4b3ec9/c5a7c4314cea442387568f41aab2cd18/FLAG158664c68 [2022-04-18 16:36:54,062 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:54,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c [2022-04-18 16:36:54,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb4b3ec9/c5a7c4314cea442387568f41aab2cd18/FLAG158664c68 [2022-04-18 16:36:54,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb4b3ec9/c5a7c4314cea442387568f41aab2cd18 [2022-04-18 16:36:54,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:54,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:54,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:54,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:54,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:54,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138b4188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54, skipping insertion in model container [2022-04-18 16:36:54,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:54,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:54,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c[2808,2821] [2022-04-18 16:36:54,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:54,296 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:54,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-4.wvr.c[2808,2821] [2022-04-18 16:36:54,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:54,334 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:54,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54 WrapperNode [2022-04-18 16:36:54,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:54,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:54,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:54,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:54,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,407 INFO L137 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 414 [2022-04-18 16:36:54,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:54,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:54,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:54,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:54,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:54,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:54,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:54,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:54,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (1/1) ... [2022-04-18 16:36:54,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:54,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:54,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:36:54,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:36:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:54,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:54,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:54,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:54,507 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:36:54,577 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:54,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:55,117 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:55,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:55,133 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:55,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:55 BoogieIcfgContainer [2022-04-18 16:36:55,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:55,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:55,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:55,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:55,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:54" (1/3) ... [2022-04-18 16:36:55,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce8b226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:55, skipping insertion in model container [2022-04-18 16:36:55,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:54" (2/3) ... [2022-04-18 16:36:55,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce8b226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:55, skipping insertion in model container [2022-04-18 16:36:55,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:55" (3/3) ... [2022-04-18 16:36:55,143 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2022-04-18 16:36:55,146 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:55,147 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:55,147 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2022-04-18 16:36:55,147 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:55,274 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:36:55,324 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:55,328 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 16:36:55,330 INFO L341 AbstractCegarLoop]: Starting to check reachability of 134 error locations. [2022-04-18 16:36:55,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 526 places, 548 transitions, 1112 flow [2022-04-18 16:36:55,499 INFO L129 PetriNetUnfolder]: 29/546 cut-off events. [2022-04-18 16:36:55,501 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:36:55,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 546 events. 29/546 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1492 event pairs, 0 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 412. Up to 2 conditions per place. [2022-04-18 16:36:55,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 526 places, 548 transitions, 1112 flow [2022-04-18 16:36:55,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 507 places, 528 transitions, 1068 flow [2022-04-18 16:36:55,541 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2022-04-18 16:36:55,541 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:55,541 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:55,542 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:55,542 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:36:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:55,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1556896531, now seen corresponding path program 1 times [2022-04-18 16:36:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:55,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779057757] [2022-04-18 16:36:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:55,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:55,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779057757] [2022-04-18 16:36:55,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779057757] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:55,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:55,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:55,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885874554] [2022-04-18 16:36:55,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:55,689 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:55,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:55,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:55,720 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 548 [2022-04-18 16:36:55,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 528 transitions, 1068 flow. Second operand has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:55,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:55,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 548 [2022-04-18 16:36:55,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:55,989 INFO L129 PetriNetUnfolder]: 124/2008 cut-off events. [2022-04-18 16:36:55,990 INFO L130 PetriNetUnfolder]: For 66/109 co-relation queries the response was YES. [2022-04-18 16:36:55,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2179 conditions, 2008 events. 124/2008 cut-off events. For 66/109 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 13707 event pairs, 51 based on Foata normal form. 44/1622 useless extension candidates. Maximal degree in co-relation 1984. Up to 142 conditions per place. [2022-04-18 16:36:56,005 INFO L132 encePairwiseOnDemand]: 531/548 looper letters, 22 selfloop transitions, 2 changer transitions 3/513 dead transitions. [2022-04-18 16:36:56,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 513 transitions, 1086 flow [2022-04-18 16:36:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:56,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1560 transitions. [2022-04-18 16:36:56,023 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.948905109489051 [2022-04-18 16:36:56,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1560 transitions. [2022-04-18 16:36:56,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1560 transitions. [2022-04-18 16:36:56,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:56,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1560 transitions. [2022-04-18 16:36:56,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,047 INFO L186 Difference]: Start difference. First operand has 507 places, 528 transitions, 1068 flow. Second operand 3 states and 1560 transitions. [2022-04-18 16:36:56,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 513 transitions, 1086 flow [2022-04-18 16:36:56,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 513 transitions, 1078 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:56,063 INFO L242 Difference]: Finished difference. Result has 504 places, 510 transitions, 1028 flow [2022-04-18 16:36:56,065 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1028, PETRI_PLACES=504, PETRI_TRANSITIONS=510} [2022-04-18 16:36:56,069 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -3 predicate places. [2022-04-18 16:36:56,070 INFO L478 AbstractCegarLoop]: Abstraction has has 504 places, 510 transitions, 1028 flow [2022-04-18 16:36:56,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,071 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:56,072 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:56,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:56,072 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:36:56,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:56,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2056033811, now seen corresponding path program 1 times [2022-04-18 16:36:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:56,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476570535] [2022-04-18 16:36:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:56,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:56,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:56,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476570535] [2022-04-18 16:36:56,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476570535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:56,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:56,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:56,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809367955] [2022-04-18 16:36:56,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:56,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:56,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:56,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:56,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:56,137 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 548 [2022-04-18 16:36:56,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 510 transitions, 1028 flow. Second operand has 3 states, 3 states have (on average 493.3333333333333) internal successors, (1480), 3 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:56,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 548 [2022-04-18 16:36:56,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:56,454 INFO L129 PetriNetUnfolder]: 216/2435 cut-off events. [2022-04-18 16:36:56,455 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-04-18 16:36:56,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 2435 events. 216/2435 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 16677 event pairs, 87 based on Foata normal form. 0/1903 useless extension candidates. Maximal degree in co-relation 2693. Up to 278 conditions per place. [2022-04-18 16:36:56,474 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 37 selfloop transitions, 2 changer transitions 0/509 dead transitions. [2022-04-18 16:36:56,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 509 transitions, 1104 flow [2022-04-18 16:36:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1516 transitions. [2022-04-18 16:36:56,478 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9221411192214112 [2022-04-18 16:36:56,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1516 transitions. [2022-04-18 16:36:56,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1516 transitions. [2022-04-18 16:36:56,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:56,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1516 transitions. [2022-04-18 16:36:56,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,484 INFO L186 Difference]: Start difference. First operand has 504 places, 510 transitions, 1028 flow. Second operand 3 states and 1516 transitions. [2022-04-18 16:36:56,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 509 transitions, 1104 flow [2022-04-18 16:36:56,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 509 transitions, 1100 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:56,492 INFO L242 Difference]: Finished difference. Result has 500 places, 509 transitions, 1026 flow [2022-04-18 16:36:56,492 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1026, PETRI_PLACES=500, PETRI_TRANSITIONS=509} [2022-04-18 16:36:56,493 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -7 predicate places. [2022-04-18 16:36:56,493 INFO L478 AbstractCegarLoop]: Abstraction has has 500 places, 509 transitions, 1026 flow [2022-04-18 16:36:56,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 493.3333333333333) internal successors, (1480), 3 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,494 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:56,495 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:56,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:56,495 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:36:56,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1792569233, now seen corresponding path program 1 times [2022-04-18 16:36:56,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:56,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841410001] [2022-04-18 16:36:56,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:56,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:56,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:56,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:56,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841410001] [2022-04-18 16:36:56,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841410001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:56,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:56,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:56,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694790069] [2022-04-18 16:36:56,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:56,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:56,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:56,539 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 548 [2022-04-18 16:36:56,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 509 transitions, 1026 flow. Second operand has 3 states, 3 states have (on average 496.3333333333333) internal successors, (1489), 3 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:56,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 548 [2022-04-18 16:36:56,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:56,795 INFO L129 PetriNetUnfolder]: 142/2009 cut-off events. [2022-04-18 16:36:56,795 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-04-18 16:36:56,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 2009 events. 142/2009 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12860 event pairs, 44 based on Foata normal form. 0/1622 useless extension candidates. Maximal degree in co-relation 2138. Up to 157 conditions per place. [2022-04-18 16:36:56,837 INFO L132 encePairwiseOnDemand]: 537/548 looper letters, 25 selfloop transitions, 1 changer transitions 0/499 dead transitions. [2022-04-18 16:36:56,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 499 transitions, 1058 flow [2022-04-18 16:36:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2022-04-18 16:36:56,841 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9251824817518248 [2022-04-18 16:36:56,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1521 transitions. [2022-04-18 16:36:56,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1521 transitions. [2022-04-18 16:36:56,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:56,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1521 transitions. [2022-04-18 16:36:56,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 507.0) internal successors, (1521), 3 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,849 INFO L186 Difference]: Start difference. First operand has 500 places, 509 transitions, 1026 flow. Second operand 3 states and 1521 transitions. [2022-04-18 16:36:56,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 499 transitions, 1058 flow [2022-04-18 16:36:56,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 499 transitions, 1054 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:56,855 INFO L242 Difference]: Finished difference. Result has 490 places, 499 transitions, 1004 flow [2022-04-18 16:36:56,855 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1002, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1004, PETRI_PLACES=490, PETRI_TRANSITIONS=499} [2022-04-18 16:36:56,857 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -17 predicate places. [2022-04-18 16:36:56,857 INFO L478 AbstractCegarLoop]: Abstraction has has 490 places, 499 transitions, 1004 flow [2022-04-18 16:36:56,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.3333333333333) internal successors, (1489), 3 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,858 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:56,859 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:56,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:56,859 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:36:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1221798408, now seen corresponding path program 1 times [2022-04-18 16:36:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:56,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729797622] [2022-04-18 16:36:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:56,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:56,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729797622] [2022-04-18 16:36:56,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729797622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:56,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:56,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:56,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292304481] [2022-04-18 16:36:56,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:56,926 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:56,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:56,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:56,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:56,929 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 548 [2022-04-18 16:36:56,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 499 transitions, 1004 flow. Second operand has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:56,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:56,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 548 [2022-04-18 16:36:56,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:57,164 INFO L129 PetriNetUnfolder]: 204/2214 cut-off events. [2022-04-18 16:36:57,165 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-04-18 16:36:57,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2487 conditions, 2214 events. 204/2214 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 14806 event pairs, 87 based on Foata normal form. 0/1777 useless extension candidates. Maximal degree in co-relation 2449. Up to 263 conditions per place. [2022-04-18 16:36:57,179 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 31 selfloop transitions, 2 changer transitions 0/498 dead transitions. [2022-04-18 16:36:57,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 498 transitions, 1068 flow [2022-04-18 16:36:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1528 transitions. [2022-04-18 16:36:57,182 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9294403892944039 [2022-04-18 16:36:57,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1528 transitions. [2022-04-18 16:36:57,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1528 transitions. [2022-04-18 16:36:57,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:57,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1528 transitions. [2022-04-18 16:36:57,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.3333333333333) internal successors, (1528), 3 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,191 INFO L186 Difference]: Start difference. First operand has 490 places, 499 transitions, 1004 flow. Second operand 3 states and 1528 transitions. [2022-04-18 16:36:57,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 498 transitions, 1068 flow [2022-04-18 16:36:57,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 498 transitions, 1067 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:57,201 INFO L242 Difference]: Finished difference. Result has 490 places, 498 transitions, 1005 flow [2022-04-18 16:36:57,201 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1005, PETRI_PLACES=490, PETRI_TRANSITIONS=498} [2022-04-18 16:36:57,203 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -17 predicate places. [2022-04-18 16:36:57,203 INFO L478 AbstractCegarLoop]: Abstraction has has 490 places, 498 transitions, 1005 flow [2022-04-18 16:36:57,204 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,204 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:57,205 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:57,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:57,205 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:36:57,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:57,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1151798637, now seen corresponding path program 1 times [2022-04-18 16:36:57,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:57,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917527440] [2022-04-18 16:36:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:57,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:57,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917527440] [2022-04-18 16:36:57,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917527440] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:57,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:57,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:57,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211945877] [2022-04-18 16:36:57,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:57,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:57,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:57,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:57,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:57,363 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 548 [2022-04-18 16:36:57,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 498 transitions, 1005 flow. Second operand has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:57,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 548 [2022-04-18 16:36:57,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:59,905 INFO L129 PetriNetUnfolder]: 5025/24281 cut-off events. [2022-04-18 16:36:59,906 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-04-18 16:36:59,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31152 conditions, 24281 events. 5025/24281 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 281854 event pairs, 3864 based on Foata normal form. 0/19339 useless extension candidates. Maximal degree in co-relation 31115. Up to 6853 conditions per place. [2022-04-18 16:37:00,072 INFO L132 encePairwiseOnDemand]: 542/548 looper letters, 75 selfloop transitions, 5 changer transitions 0/497 dead transitions. [2022-04-18 16:37:00,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 497 transitions, 1163 flow [2022-04-18 16:37:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2787 transitions. [2022-04-18 16:37:00,078 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8476277372262774 [2022-04-18 16:37:00,078 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2787 transitions. [2022-04-18 16:37:00,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2787 transitions. [2022-04-18 16:37:00,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2787 transitions. [2022-04-18 16:37:00,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 464.5) internal successors, (2787), 6 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,090 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,090 INFO L186 Difference]: Start difference. First operand has 490 places, 498 transitions, 1005 flow. Second operand 6 states and 2787 transitions. [2022-04-18 16:37:00,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 497 transitions, 1163 flow [2022-04-18 16:37:00,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 497 transitions, 1159 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:00,097 INFO L242 Difference]: Finished difference. Result has 492 places, 497 transitions, 1009 flow [2022-04-18 16:37:00,098 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1009, PETRI_PLACES=492, PETRI_TRANSITIONS=497} [2022-04-18 16:37:00,098 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -15 predicate places. [2022-04-18 16:37:00,098 INFO L478 AbstractCegarLoop]: Abstraction has has 492 places, 497 transitions, 1009 flow [2022-04-18 16:37:00,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,100 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,100 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:00,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:37:00,101 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:00,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,101 INFO L85 PathProgramCache]: Analyzing trace with hash 286919407, now seen corresponding path program 1 times [2022-04-18 16:37:00,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057045291] [2022-04-18 16:37:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:00,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057045291] [2022-04-18 16:37:00,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057045291] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:00,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063512725] [2022-04-18 16:37:00,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:00,133 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 548 [2022-04-18 16:37:00,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 497 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 511.6666666666667) internal successors, (1535), 3 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 548 [2022-04-18 16:37:00,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,335 INFO L129 PetriNetUnfolder]: 83/1538 cut-off events. [2022-04-18 16:37:00,336 INFO L130 PetriNetUnfolder]: For 10/20 co-relation queries the response was YES. [2022-04-18 16:37:00,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 1538 events. 83/1538 cut-off events. For 10/20 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9187 event pairs, 16 based on Foata normal form. 1/1265 useless extension candidates. Maximal degree in co-relation 1615. Up to 78 conditions per place. [2022-04-18 16:37:00,347 INFO L132 encePairwiseOnDemand]: 541/548 looper letters, 17 selfloop transitions, 2 changer transitions 0/495 dead transitions. [2022-04-18 16:37:00,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 495 transitions, 1044 flow [2022-04-18 16:37:00,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:00,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1554 transitions. [2022-04-18 16:37:00,351 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9452554744525548 [2022-04-18 16:37:00,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1554 transitions. [2022-04-18 16:37:00,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1554 transitions. [2022-04-18 16:37:00,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1554 transitions. [2022-04-18 16:37:00,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 518.0) internal successors, (1554), 3 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,356 INFO L186 Difference]: Start difference. First operand has 492 places, 497 transitions, 1009 flow. Second operand 3 states and 1554 transitions. [2022-04-18 16:37:00,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 495 transitions, 1044 flow [2022-04-18 16:37:00,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 495 transitions, 1034 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:00,363 INFO L242 Difference]: Finished difference. Result has 485 places, 494 transitions, 1003 flow [2022-04-18 16:37:00,363 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1003, PETRI_PLACES=485, PETRI_TRANSITIONS=494} [2022-04-18 16:37:00,365 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -22 predicate places. [2022-04-18 16:37:00,365 INFO L478 AbstractCegarLoop]: Abstraction has has 485 places, 494 transitions, 1003 flow [2022-04-18 16:37:00,366 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.6666666666667) internal successors, (1535), 3 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,366 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,366 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:00,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:37:00,366 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash 632378167, now seen corresponding path program 1 times [2022-04-18 16:37:00,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228344222] [2022-04-18 16:37:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228344222] [2022-04-18 16:37:00,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228344222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699101883] [2022-04-18 16:37:00,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:00,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:00,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:00,428 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 548 [2022-04-18 16:37:00,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 494 transitions, 1003 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 548 [2022-04-18 16:37:00,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,509 INFO L129 PetriNetUnfolder]: 40/870 cut-off events. [2022-04-18 16:37:00,509 INFO L130 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-04-18 16:37:00,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 870 events. 40/870 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3858 event pairs, 3 based on Foata normal form. 1/735 useless extension candidates. Maximal degree in co-relation 895. Up to 21 conditions per place. [2022-04-18 16:37:00,517 INFO L132 encePairwiseOnDemand]: 541/548 looper letters, 13 selfloop transitions, 3 changer transitions 0/491 dead transitions. [2022-04-18 16:37:00,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 491 transitions, 1030 flow [2022-04-18 16:37:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1559 transitions. [2022-04-18 16:37:00,520 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9482968369829684 [2022-04-18 16:37:00,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1559 transitions. [2022-04-18 16:37:00,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1559 transitions. [2022-04-18 16:37:00,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1559 transitions. [2022-04-18 16:37:00,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 519.6666666666666) internal successors, (1559), 3 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,537 INFO L186 Difference]: Start difference. First operand has 485 places, 494 transitions, 1003 flow. Second operand 3 states and 1559 transitions. [2022-04-18 16:37:00,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 491 transitions, 1030 flow [2022-04-18 16:37:00,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 491 transitions, 1030 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:00,543 INFO L242 Difference]: Finished difference. Result has 483 places, 490 transitions, 1001 flow [2022-04-18 16:37:00,544 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=995, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1001, PETRI_PLACES=483, PETRI_TRANSITIONS=490} [2022-04-18 16:37:00,544 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -24 predicate places. [2022-04-18 16:37:00,545 INFO L478 AbstractCegarLoop]: Abstraction has has 483 places, 490 transitions, 1001 flow [2022-04-18 16:37:00,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,545 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,545 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 16:37:00,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:37:00,546 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:00,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1564015806, now seen corresponding path program 1 times [2022-04-18 16:37:00,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773568428] [2022-04-18 16:37:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773568428] [2022-04-18 16:37:00,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773568428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301066060] [2022-04-18 16:37:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,591 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:00,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:00,593 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 548 [2022-04-18 16:37:00,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 490 transitions, 1001 flow. Second operand has 3 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 548 [2022-04-18 16:37:00,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,746 INFO L129 PetriNetUnfolder]: 105/1151 cut-off events. [2022-04-18 16:37:00,747 INFO L130 PetriNetUnfolder]: For 66/70 co-relation queries the response was YES. [2022-04-18 16:37:00,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 1151 events. 105/1151 cut-off events. For 66/70 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6717 event pairs, 21 based on Foata normal form. 2/1022 useless extension candidates. Maximal degree in co-relation 1396. Up to 173 conditions per place. [2022-04-18 16:37:00,756 INFO L132 encePairwiseOnDemand]: 511/548 looper letters, 53 selfloop transitions, 14 changer transitions 5/469 dead transitions. [2022-04-18 16:37:00,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 469 transitions, 1098 flow [2022-04-18 16:37:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1414 transitions. [2022-04-18 16:37:00,759 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8600973236009732 [2022-04-18 16:37:00,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1414 transitions. [2022-04-18 16:37:00,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1414 transitions. [2022-04-18 16:37:00,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1414 transitions. [2022-04-18 16:37:00,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,764 INFO L186 Difference]: Start difference. First operand has 483 places, 490 transitions, 1001 flow. Second operand 3 states and 1414 transitions. [2022-04-18 16:37:00,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 469 transitions, 1098 flow [2022-04-18 16:37:00,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 469 transitions, 1092 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:00,771 INFO L242 Difference]: Finished difference. Result has 461 places, 463 transitions, 968 flow [2022-04-18 16:37:00,772 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=968, PETRI_PLACES=461, PETRI_TRANSITIONS=463} [2022-04-18 16:37:00,774 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -46 predicate places. [2022-04-18 16:37:00,774 INFO L478 AbstractCegarLoop]: Abstraction has has 461 places, 463 transitions, 968 flow [2022-04-18 16:37:00,775 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,775 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,775 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:00,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:37:00,775 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:00,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1142504733, now seen corresponding path program 1 times [2022-04-18 16:37:00,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632334038] [2022-04-18 16:37:00,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:00,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632334038] [2022-04-18 16:37:00,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632334038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:00,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286646706] [2022-04-18 16:37:00,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:00,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:00,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:00,880 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 548 [2022-04-18 16:37:00,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 463 transitions, 968 flow. Second operand has 6 states, 6 states have (on average 457.8333333333333) internal successors, (2747), 6 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 548 [2022-04-18 16:37:00,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:03,103 INFO L129 PetriNetUnfolder]: 4894/19799 cut-off events. [2022-04-18 16:37:03,103 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-04-18 16:37:03,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27658 conditions, 19799 events. 4894/19799 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 210512 event pairs, 2248 based on Foata normal form. 0/17292 useless extension candidates. Maximal degree in co-relation 27618. Up to 2564 conditions per place. [2022-04-18 16:37:03,191 INFO L132 encePairwiseOnDemand]: 543/548 looper letters, 259 selfloop transitions, 4 changer transitions 0/654 dead transitions. [2022-04-18 16:37:03,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 654 transitions, 1876 flow [2022-04-18 16:37:03,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3000 transitions. [2022-04-18 16:37:03,196 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9124087591240876 [2022-04-18 16:37:03,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3000 transitions. [2022-04-18 16:37:03,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3000 transitions. [2022-04-18 16:37:03,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:03,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3000 transitions. [2022-04-18 16:37:03,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 500.0) internal successors, (3000), 6 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,205 INFO L186 Difference]: Start difference. First operand has 461 places, 463 transitions, 968 flow. Second operand 6 states and 3000 transitions. [2022-04-18 16:37:03,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 654 transitions, 1876 flow [2022-04-18 16:37:03,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 654 transitions, 1848 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:03,216 INFO L242 Difference]: Finished difference. Result has 458 places, 462 transitions, 946 flow [2022-04-18 16:37:03,217 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=458, PETRI_TRANSITIONS=462} [2022-04-18 16:37:03,217 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -49 predicate places. [2022-04-18 16:37:03,218 INFO L478 AbstractCegarLoop]: Abstraction has has 458 places, 462 transitions, 946 flow [2022-04-18 16:37:03,218 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 457.8333333333333) internal successors, (2747), 6 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,218 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:03,218 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:03,219 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:37:03,219 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:03,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:03,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1495179717, now seen corresponding path program 1 times [2022-04-18 16:37:03,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:03,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332217887] [2022-04-18 16:37:03,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:03,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:03,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:03,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332217887] [2022-04-18 16:37:03,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332217887] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:03,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:03,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:03,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409410561] [2022-04-18 16:37:03,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:03,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:03,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:03,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:03,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:03,243 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 548 [2022-04-18 16:37:03,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 462 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 502.6666666666667) internal successors, (1508), 3 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:03,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 548 [2022-04-18 16:37:03,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:03,393 INFO L129 PetriNetUnfolder]: 139/2027 cut-off events. [2022-04-18 16:37:03,393 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-04-18 16:37:03,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 2027 events. 139/2027 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 13079 event pairs, 15 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 2171. Up to 143 conditions per place. [2022-04-18 16:37:03,405 INFO L132 encePairwiseOnDemand]: 535/548 looper letters, 23 selfloop transitions, 5 changer transitions 0/461 dead transitions. [2022-04-18 16:37:03,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 461 transitions, 1002 flow [2022-04-18 16:37:03,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:03,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1539 transitions. [2022-04-18 16:37:03,408 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9361313868613139 [2022-04-18 16:37:03,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1539 transitions. [2022-04-18 16:37:03,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1539 transitions. [2022-04-18 16:37:03,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:03,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1539 transitions. [2022-04-18 16:37:03,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,413 INFO L186 Difference]: Start difference. First operand has 458 places, 462 transitions, 946 flow. Second operand 3 states and 1539 transitions. [2022-04-18 16:37:03,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 461 transitions, 1002 flow [2022-04-18 16:37:03,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 461 transitions, 995 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:37:03,419 INFO L242 Difference]: Finished difference. Result has 449 places, 459 transitions, 958 flow [2022-04-18 16:37:03,420 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=449, PETRI_TRANSITIONS=459} [2022-04-18 16:37:03,420 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -58 predicate places. [2022-04-18 16:37:03,420 INFO L478 AbstractCegarLoop]: Abstraction has has 449 places, 459 transitions, 958 flow [2022-04-18 16:37:03,421 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.6666666666667) internal successors, (1508), 3 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,421 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:03,421 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:03,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:37:03,421 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:03,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:03,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1787530721, now seen corresponding path program 1 times [2022-04-18 16:37:03,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:03,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981442823] [2022-04-18 16:37:03,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:03,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:03,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:03,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981442823] [2022-04-18 16:37:03,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981442823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:03,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:03,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:03,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109862009] [2022-04-18 16:37:03,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:03,470 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:03,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:03,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:03,472 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 512 out of 548 [2022-04-18 16:37:03,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 459 transitions, 958 flow. Second operand has 4 states, 4 states have (on average 515.0) internal successors, (2060), 4 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:03,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 512 of 548 [2022-04-18 16:37:03,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:03,836 INFO L129 PetriNetUnfolder]: 171/3230 cut-off events. [2022-04-18 16:37:03,836 INFO L130 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-04-18 16:37:03,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3501 conditions, 3230 events. 171/3230 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 24353 event pairs, 15 based on Foata normal form. 1/2885 useless extension candidates. Maximal degree in co-relation 3462. Up to 74 conditions per place. [2022-04-18 16:37:03,850 INFO L132 encePairwiseOnDemand]: 542/548 looper letters, 29 selfloop transitions, 6 changer transitions 0/476 dead transitions. [2022-04-18 16:37:03,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 476 transitions, 1066 flow [2022-04-18 16:37:03,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2596 transitions. [2022-04-18 16:37:03,854 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9474452554744526 [2022-04-18 16:37:03,854 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2596 transitions. [2022-04-18 16:37:03,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2596 transitions. [2022-04-18 16:37:03,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:03,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2596 transitions. [2022-04-18 16:37:03,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 519.2) internal successors, (2596), 5 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,861 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,861 INFO L186 Difference]: Start difference. First operand has 449 places, 459 transitions, 958 flow. Second operand 5 states and 2596 transitions. [2022-04-18 16:37:03,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 476 transitions, 1066 flow [2022-04-18 16:37:03,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 476 transitions, 1066 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:03,867 INFO L242 Difference]: Finished difference. Result has 456 places, 463 transitions, 996 flow [2022-04-18 16:37:03,868 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=996, PETRI_PLACES=456, PETRI_TRANSITIONS=463} [2022-04-18 16:37:03,868 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -51 predicate places. [2022-04-18 16:37:03,868 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 463 transitions, 996 flow [2022-04-18 16:37:03,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 515.0) internal successors, (2060), 4 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,869 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:03,869 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:03,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:37:03,869 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:03,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1548365530, now seen corresponding path program 1 times [2022-04-18 16:37:03,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:03,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614125741] [2022-04-18 16:37:03,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:03,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:03,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:03,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614125741] [2022-04-18 16:37:03,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614125741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:03,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:03,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14850216] [2022-04-18 16:37:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:03,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:03,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:03,947 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 548 [2022-04-18 16:37:03,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 463 transitions, 996 flow. Second operand has 6 states, 6 states have (on average 458.8333333333333) internal successors, (2753), 6 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:03,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:03,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 548 [2022-04-18 16:37:03,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:08,414 INFO L129 PetriNetUnfolder]: 8728/38118 cut-off events. [2022-04-18 16:37:08,415 INFO L130 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-04-18 16:37:08,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52018 conditions, 38118 events. 8728/38118 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 446276 event pairs, 6778 based on Foata normal form. 0/33783 useless extension candidates. Maximal degree in co-relation 51973. Up to 11352 conditions per place. [2022-04-18 16:37:08,625 INFO L132 encePairwiseOnDemand]: 543/548 looper letters, 234 selfloop transitions, 4 changer transitions 0/630 dead transitions. [2022-04-18 16:37:08,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 630 transitions, 1806 flow [2022-04-18 16:37:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2975 transitions. [2022-04-18 16:37:08,630 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9048053527980535 [2022-04-18 16:37:08,630 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2975 transitions. [2022-04-18 16:37:08,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2975 transitions. [2022-04-18 16:37:08,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:08,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2975 transitions. [2022-04-18 16:37:08,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 495.8333333333333) internal successors, (2975), 6 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:08,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:08,639 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:08,639 INFO L186 Difference]: Start difference. First operand has 456 places, 463 transitions, 996 flow. Second operand 6 states and 2975 transitions. [2022-04-18 16:37:08,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 630 transitions, 1806 flow [2022-04-18 16:37:08,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 630 transitions, 1806 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:08,648 INFO L242 Difference]: Finished difference. Result has 460 places, 462 transitions, 1002 flow [2022-04-18 16:37:08,648 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1002, PETRI_PLACES=460, PETRI_TRANSITIONS=462} [2022-04-18 16:37:08,649 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -47 predicate places. [2022-04-18 16:37:08,649 INFO L478 AbstractCegarLoop]: Abstraction has has 460 places, 462 transitions, 1002 flow [2022-04-18 16:37:08,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 458.8333333333333) internal successors, (2753), 6 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:08,650 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:08,650 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:08,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:37:08,650 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash 137262211, now seen corresponding path program 1 times [2022-04-18 16:37:08,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:08,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770279691] [2022-04-18 16:37:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:08,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:08,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:08,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770279691] [2022-04-18 16:37:08,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770279691] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:08,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:08,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:08,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983750263] [2022-04-18 16:37:08,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:08,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:08,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:08,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:08,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:08,724 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 548 [2022-04-18 16:37:08,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 462 transitions, 1002 flow. Second operand has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:08,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:08,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 548 [2022-04-18 16:37:08,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:13,155 INFO L129 PetriNetUnfolder]: 12577/40366 cut-off events. [2022-04-18 16:37:13,155 INFO L130 PetriNetUnfolder]: For 3777/3777 co-relation queries the response was YES. [2022-04-18 16:37:13,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64323 conditions, 40366 events. 12577/40366 cut-off events. For 3777/3777 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 441604 event pairs, 5109 based on Foata normal form. 0/36676 useless extension candidates. Maximal degree in co-relation 64277. Up to 9668 conditions per place. [2022-04-18 16:37:13,360 INFO L132 encePairwiseOnDemand]: 542/548 looper letters, 296 selfloop transitions, 6 changer transitions 0/681 dead transitions. [2022-04-18 16:37:13,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 681 transitions, 2052 flow [2022-04-18 16:37:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:13,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2982 transitions. [2022-04-18 16:37:13,365 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.906934306569343 [2022-04-18 16:37:13,365 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2982 transitions. [2022-04-18 16:37:13,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2982 transitions. [2022-04-18 16:37:13,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:13,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2982 transitions. [2022-04-18 16:37:13,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 497.0) internal successors, (2982), 6 states have internal predecessors, (2982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,374 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,374 INFO L186 Difference]: Start difference. First operand has 460 places, 462 transitions, 1002 flow. Second operand 6 states and 2982 transitions. [2022-04-18 16:37:13,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 681 transitions, 2052 flow [2022-04-18 16:37:13,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 681 transitions, 2045 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:37:13,384 INFO L242 Difference]: Finished difference. Result has 460 places, 461 transitions, 1005 flow [2022-04-18 16:37:13,384 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1005, PETRI_PLACES=460, PETRI_TRANSITIONS=461} [2022-04-18 16:37:13,385 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -47 predicate places. [2022-04-18 16:37:13,385 INFO L478 AbstractCegarLoop]: Abstraction has has 460 places, 461 transitions, 1005 flow [2022-04-18 16:37:13,385 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,385 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:13,385 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:13,386 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:37:13,386 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:13,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash 229265797, now seen corresponding path program 1 times [2022-04-18 16:37:13,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:13,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212107427] [2022-04-18 16:37:13,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:13,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:13,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212107427] [2022-04-18 16:37:13,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212107427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:13,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:13,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:13,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330280105] [2022-04-18 16:37:13,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:13,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:13,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:13,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:13,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:13,417 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 548 [2022-04-18 16:37:13,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 461 transitions, 1005 flow. Second operand has 4 states, 4 states have (on average 455.25) internal successors, (1821), 4 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:13,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 548 [2022-04-18 16:37:13,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:13,802 INFO L129 PetriNetUnfolder]: 337/3095 cut-off events. [2022-04-18 16:37:13,802 INFO L130 PetriNetUnfolder]: For 224/226 co-relation queries the response was YES. [2022-04-18 16:37:13,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4218 conditions, 3095 events. 337/3095 cut-off events. For 224/226 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 23859 event pairs, 78 based on Foata normal form. 1/2815 useless extension candidates. Maximal degree in co-relation 4173. Up to 595 conditions per place. [2022-04-18 16:37:13,826 INFO L132 encePairwiseOnDemand]: 539/548 looper letters, 115 selfloop transitions, 9 changer transitions 0/507 dead transitions. [2022-04-18 16:37:13,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 507 transitions, 1348 flow [2022-04-18 16:37:13,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2385 transitions. [2022-04-18 16:37:13,830 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8704379562043796 [2022-04-18 16:37:13,830 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2385 transitions. [2022-04-18 16:37:13,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2385 transitions. [2022-04-18 16:37:13,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:13,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2385 transitions. [2022-04-18 16:37:13,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 477.0) internal successors, (2385), 5 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,837 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,837 INFO L186 Difference]: Start difference. First operand has 460 places, 461 transitions, 1005 flow. Second operand 5 states and 2385 transitions. [2022-04-18 16:37:13,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 507 transitions, 1348 flow [2022-04-18 16:37:13,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 507 transitions, 1336 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:13,844 INFO L242 Difference]: Finished difference. Result has 462 places, 468 transitions, 1055 flow [2022-04-18 16:37:13,844 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1055, PETRI_PLACES=462, PETRI_TRANSITIONS=468} [2022-04-18 16:37:13,845 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -45 predicate places. [2022-04-18 16:37:13,845 INFO L478 AbstractCegarLoop]: Abstraction has has 462 places, 468 transitions, 1055 flow [2022-04-18 16:37:13,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 455.25) internal successors, (1821), 4 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:13,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:13,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:37:13,846 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:13,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1385725690, now seen corresponding path program 1 times [2022-04-18 16:37:13,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:13,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292171881] [2022-04-18 16:37:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:13,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:13,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:13,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292171881] [2022-04-18 16:37:13,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292171881] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:13,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:13,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:13,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048181088] [2022-04-18 16:37:13,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:13,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:13,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:13,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:13,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:13,877 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 548 [2022-04-18 16:37:13,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 468 transitions, 1055 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:13,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:13,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 548 [2022-04-18 16:37:13,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:14,068 INFO L129 PetriNetUnfolder]: 115/2091 cut-off events. [2022-04-18 16:37:14,069 INFO L130 PetriNetUnfolder]: For 38/40 co-relation queries the response was YES. [2022-04-18 16:37:14,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2439 conditions, 2091 events. 115/2091 cut-off events. For 38/40 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 12147 event pairs, 24 based on Foata normal form. 0/1900 useless extension candidates. Maximal degree in co-relation 2391. Up to 79 conditions per place. [2022-04-18 16:37:14,085 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 12 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2022-04-18 16:37:14,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 468 transitions, 1084 flow [2022-04-18 16:37:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1548 transitions. [2022-04-18 16:37:14,087 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9416058394160584 [2022-04-18 16:37:14,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1548 transitions. [2022-04-18 16:37:14,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1548 transitions. [2022-04-18 16:37:14,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:14,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1548 transitions. [2022-04-18 16:37:14,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,092 INFO L186 Difference]: Start difference. First operand has 462 places, 468 transitions, 1055 flow. Second operand 3 states and 1548 transitions. [2022-04-18 16:37:14,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 468 transitions, 1084 flow [2022-04-18 16:37:14,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 468 transitions, 1084 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:14,098 INFO L242 Difference]: Finished difference. Result has 463 places, 467 transitions, 1057 flow [2022-04-18 16:37:14,098 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1057, PETRI_PLACES=463, PETRI_TRANSITIONS=467} [2022-04-18 16:37:14,099 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -44 predicate places. [2022-04-18 16:37:14,099 INFO L478 AbstractCegarLoop]: Abstraction has has 463 places, 467 transitions, 1057 flow [2022-04-18 16:37:14,099 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,099 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:14,099 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:14,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:37:14,100 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err35ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:14,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:14,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1803985687, now seen corresponding path program 1 times [2022-04-18 16:37:14,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:14,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462709275] [2022-04-18 16:37:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:14,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:14,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:14,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462709275] [2022-04-18 16:37:14,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462709275] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:14,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:14,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:14,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140239371] [2022-04-18 16:37:14,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:14,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:14,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:14,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:14,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:14,140 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 548 [2022-04-18 16:37:14,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 467 transitions, 1057 flow. Second operand has 4 states, 4 states have (on average 455.25) internal successors, (1821), 4 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:14,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 548 [2022-04-18 16:37:14,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:14,642 INFO L129 PetriNetUnfolder]: 334/3087 cut-off events. [2022-04-18 16:37:14,642 INFO L130 PetriNetUnfolder]: For 296/298 co-relation queries the response was YES. [2022-04-18 16:37:14,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4309 conditions, 3087 events. 334/3087 cut-off events. For 296/298 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 23833 event pairs, 80 based on Foata normal form. 0/2826 useless extension candidates. Maximal degree in co-relation 4259. Up to 595 conditions per place. [2022-04-18 16:37:14,664 INFO L132 encePairwiseOnDemand]: 539/548 looper letters, 115 selfloop transitions, 9 changer transitions 0/507 dead transitions. [2022-04-18 16:37:14,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 507 transitions, 1388 flow [2022-04-18 16:37:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:14,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2385 transitions. [2022-04-18 16:37:14,668 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8704379562043796 [2022-04-18 16:37:14,668 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2385 transitions. [2022-04-18 16:37:14,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2385 transitions. [2022-04-18 16:37:14,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:14,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2385 transitions. [2022-04-18 16:37:14,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 477.0) internal successors, (2385), 5 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,675 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,675 INFO L186 Difference]: Start difference. First operand has 463 places, 467 transitions, 1057 flow. Second operand 5 states and 2385 transitions. [2022-04-18 16:37:14,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 507 transitions, 1388 flow [2022-04-18 16:37:14,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 507 transitions, 1384 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:14,682 INFO L242 Difference]: Finished difference. Result has 468 places, 470 transitions, 1099 flow [2022-04-18 16:37:14,683 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1099, PETRI_PLACES=468, PETRI_TRANSITIONS=470} [2022-04-18 16:37:14,683 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -39 predicate places. [2022-04-18 16:37:14,683 INFO L478 AbstractCegarLoop]: Abstraction has has 468 places, 470 transitions, 1099 flow [2022-04-18 16:37:14,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 455.25) internal successors, (1821), 4 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,684 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:14,684 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:14,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:37:14,684 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:14,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:14,684 INFO L85 PathProgramCache]: Analyzing trace with hash 670956655, now seen corresponding path program 1 times [2022-04-18 16:37:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:14,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530796180] [2022-04-18 16:37:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:14,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:14,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:14,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530796180] [2022-04-18 16:37:14,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530796180] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:14,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:14,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:14,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681597153] [2022-04-18 16:37:14,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:14,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:14,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:14,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:14,740 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 548 [2022-04-18 16:37:14,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 470 transitions, 1099 flow. Second operand has 6 states, 6 states have (on average 431.1666666666667) internal successors, (2587), 6 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:14,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:14,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 548 [2022-04-18 16:37:14,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:20,680 INFO L129 PetriNetUnfolder]: 16768/53795 cut-off events. [2022-04-18 16:37:20,680 INFO L130 PetriNetUnfolder]: For 4957/4957 co-relation queries the response was YES. [2022-04-18 16:37:20,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86666 conditions, 53795 events. 16768/53795 cut-off events. For 4957/4957 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 588748 event pairs, 5643 based on Foata normal form. 0/50096 useless extension candidates. Maximal degree in co-relation 86611. Up to 10660 conditions per place. [2022-04-18 16:37:21,026 INFO L132 encePairwiseOnDemand]: 506/548 looper letters, 127 selfloop transitions, 39 changer transitions 0/531 dead transitions. [2022-04-18 16:37:21,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 531 transitions, 1565 flow [2022-04-18 16:37:21,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:21,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2739 transitions. [2022-04-18 16:37:21,030 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.833029197080292 [2022-04-18 16:37:21,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2739 transitions. [2022-04-18 16:37:21,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2739 transitions. [2022-04-18 16:37:21,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:21,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2739 transitions. [2022-04-18 16:37:21,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 456.5) internal successors, (2739), 6 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,038 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 548.0) internal successors, (3836), 7 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,038 INFO L186 Difference]: Start difference. First operand has 468 places, 470 transitions, 1099 flow. Second operand 6 states and 2739 transitions. [2022-04-18 16:37:21,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 531 transitions, 1565 flow [2022-04-18 16:37:21,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 531 transitions, 1565 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:21,051 INFO L242 Difference]: Finished difference. Result has 466 places, 463 transitions, 1163 flow [2022-04-18 16:37:21,051 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1085, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1163, PETRI_PLACES=466, PETRI_TRANSITIONS=463} [2022-04-18 16:37:21,051 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -41 predicate places. [2022-04-18 16:37:21,052 INFO L478 AbstractCegarLoop]: Abstraction has has 466 places, 463 transitions, 1163 flow [2022-04-18 16:37:21,052 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 431.1666666666667) internal successors, (2587), 6 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,052 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:21,052 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:21,053 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:37:21,053 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:21,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:21,053 INFO L85 PathProgramCache]: Analyzing trace with hash -916074567, now seen corresponding path program 1 times [2022-04-18 16:37:21,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:21,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612185438] [2022-04-18 16:37:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:21,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:21,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:21,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612185438] [2022-04-18 16:37:21,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612185438] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:21,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:21,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:21,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524426604] [2022-04-18 16:37:21,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:21,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:21,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:21,077 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:21,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 463 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:21,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:21,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:21,454 INFO L129 PetriNetUnfolder]: 302/2958 cut-off events. [2022-04-18 16:37:21,454 INFO L130 PetriNetUnfolder]: For 485/488 co-relation queries the response was YES. [2022-04-18 16:37:21,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4375 conditions, 2958 events. 302/2958 cut-off events. For 485/488 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 22407 event pairs, 182 based on Foata normal form. 0/2766 useless extension candidates. Maximal degree in co-relation 4321. Up to 677 conditions per place. [2022-04-18 16:37:21,476 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 66 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:37:21,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 463 transitions, 1300 flow [2022-04-18 16:37:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:21,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1386 transitions. [2022-04-18 16:37:21,479 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.843065693430657 [2022-04-18 16:37:21,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1386 transitions. [2022-04-18 16:37:21,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1386 transitions. [2022-04-18 16:37:21,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:21,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1386 transitions. [2022-04-18 16:37:21,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,483 INFO L186 Difference]: Start difference. First operand has 466 places, 463 transitions, 1163 flow. Second operand 3 states and 1386 transitions. [2022-04-18 16:37:21,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 463 transitions, 1300 flow [2022-04-18 16:37:21,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 463 transitions, 1222 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:21,614 INFO L242 Difference]: Finished difference. Result has 462 places, 462 transitions, 1087 flow [2022-04-18 16:37:21,615 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1083, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1087, PETRI_PLACES=462, PETRI_TRANSITIONS=462} [2022-04-18 16:37:21,615 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -45 predicate places. [2022-04-18 16:37:21,615 INFO L478 AbstractCegarLoop]: Abstraction has has 462 places, 462 transitions, 1087 flow [2022-04-18 16:37:21,616 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,616 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:21,616 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:21,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:37:21,616 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err44ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:21,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:21,616 INFO L85 PathProgramCache]: Analyzing trace with hash -324966957, now seen corresponding path program 1 times [2022-04-18 16:37:21,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:21,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550299450] [2022-04-18 16:37:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:21,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:21,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550299450] [2022-04-18 16:37:21,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550299450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:21,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:21,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:21,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992379404] [2022-04-18 16:37:21,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:21,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:21,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:21,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:21,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:21,644 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:21,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 462 transitions, 1087 flow. Second operand has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:21,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:21,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:21,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:21,996 INFO L129 PetriNetUnfolder]: 300/2950 cut-off events. [2022-04-18 16:37:21,996 INFO L130 PetriNetUnfolder]: For 369/372 co-relation queries the response was YES. [2022-04-18 16:37:22,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4041 conditions, 2950 events. 300/2950 cut-off events. For 369/372 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 22266 event pairs, 180 based on Foata normal form. 0/2764 useless extension candidates. Maximal degree in co-relation 3987. Up to 669 conditions per place. [2022-04-18 16:37:22,021 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 65 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:37:22,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 462 transitions, 1222 flow [2022-04-18 16:37:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1385 transitions. [2022-04-18 16:37:22,023 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8424574209245742 [2022-04-18 16:37:22,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1385 transitions. [2022-04-18 16:37:22,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1385 transitions. [2022-04-18 16:37:22,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:22,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1385 transitions. [2022-04-18 16:37:22,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,027 INFO L186 Difference]: Start difference. First operand has 462 places, 462 transitions, 1087 flow. Second operand 3 states and 1385 transitions. [2022-04-18 16:37:22,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 462 transitions, 1222 flow [2022-04-18 16:37:22,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 462 transitions, 1218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:22,034 INFO L242 Difference]: Finished difference. Result has 461 places, 461 transitions, 1085 flow [2022-04-18 16:37:22,034 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1085, PETRI_PLACES=461, PETRI_TRANSITIONS=461} [2022-04-18 16:37:22,035 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -46 predicate places. [2022-04-18 16:37:22,035 INFO L478 AbstractCegarLoop]: Abstraction has has 461 places, 461 transitions, 1085 flow [2022-04-18 16:37:22,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,035 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:22,035 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:22,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:37:22,036 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash -724393829, now seen corresponding path program 1 times [2022-04-18 16:37:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:22,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697104668] [2022-04-18 16:37:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:22,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:22,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:22,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697104668] [2022-04-18 16:37:22,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697104668] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:22,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:22,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:22,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101434345] [2022-04-18 16:37:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:22,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:22,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:22,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:22,059 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:22,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 461 transitions, 1085 flow. Second operand has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:22,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:22,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:22,363 INFO L129 PetriNetUnfolder]: 298/2942 cut-off events. [2022-04-18 16:37:22,363 INFO L130 PetriNetUnfolder]: For 367/370 co-relation queries the response was YES. [2022-04-18 16:37:22,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4025 conditions, 2942 events. 298/2942 cut-off events. For 367/370 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22191 event pairs, 178 based on Foata normal form. 0/2762 useless extension candidates. Maximal degree in co-relation 3971. Up to 661 conditions per place. [2022-04-18 16:37:22,381 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 64 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-04-18 16:37:22,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 461 transitions, 1218 flow [2022-04-18 16:37:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2022-04-18 16:37:22,384 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8418491484184915 [2022-04-18 16:37:22,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2022-04-18 16:37:22,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2022-04-18 16:37:22,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:22,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2022-04-18 16:37:22,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,386 INFO L186 Difference]: Start difference. First operand has 461 places, 461 transitions, 1085 flow. Second operand 3 states and 1384 transitions. [2022-04-18 16:37:22,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 461 transitions, 1218 flow [2022-04-18 16:37:22,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 461 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:22,393 INFO L242 Difference]: Finished difference. Result has 460 places, 460 transitions, 1083 flow [2022-04-18 16:37:22,393 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1079, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1083, PETRI_PLACES=460, PETRI_TRANSITIONS=460} [2022-04-18 16:37:22,393 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -47 predicate places. [2022-04-18 16:37:22,394 INFO L478 AbstractCegarLoop]: Abstraction has has 460 places, 460 transitions, 1083 flow [2022-04-18 16:37:22,394 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.6666666666667) internal successors, (1328), 3 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,394 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:22,394 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] [2022-04-18 16:37:22,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:37:22,394 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err52ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:22,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash 869270849, now seen corresponding path program 1 times [2022-04-18 16:37:22,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:22,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170171259] [2022-04-18 16:37:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:22,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:22,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:22,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170171259] [2022-04-18 16:37:22,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170171259] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:22,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:22,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:22,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938688360] [2022-04-18 16:37:22,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:22,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:22,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:22,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:22,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:22,416 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:22,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 460 transitions, 1083 flow. Second operand has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:22,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:22,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:22,763 INFO L129 PetriNetUnfolder]: 296/2934 cut-off events. [2022-04-18 16:37:22,763 INFO L130 PetriNetUnfolder]: For 365/368 co-relation queries the response was YES. [2022-04-18 16:37:22,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4009 conditions, 2934 events. 296/2934 cut-off events. For 365/368 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22058 event pairs, 176 based on Foata normal form. 0/2760 useless extension candidates. Maximal degree in co-relation 3955. Up to 653 conditions per place. [2022-04-18 16:37:22,776 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 62 selfloop transitions, 2 changer transitions 1/460 dead transitions. [2022-04-18 16:37:22,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 460 transitions, 1214 flow [2022-04-18 16:37:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:22,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1383 transitions. [2022-04-18 16:37:22,779 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8412408759124088 [2022-04-18 16:37:22,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1383 transitions. [2022-04-18 16:37:22,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1383 transitions. [2022-04-18 16:37:22,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:22,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1383 transitions. [2022-04-18 16:37:22,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,782 INFO L186 Difference]: Start difference. First operand has 460 places, 460 transitions, 1083 flow. Second operand 3 states and 1383 transitions. [2022-04-18 16:37:22,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 460 transitions, 1214 flow [2022-04-18 16:37:22,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 460 transitions, 1210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:22,788 INFO L242 Difference]: Finished difference. Result has 459 places, 459 transitions, 1081 flow [2022-04-18 16:37:22,788 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1081, PETRI_PLACES=459, PETRI_TRANSITIONS=459} [2022-04-18 16:37:22,789 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -48 predicate places. [2022-04-18 16:37:22,789 INFO L478 AbstractCegarLoop]: Abstraction has has 459 places, 459 transitions, 1081 flow [2022-04-18 16:37:22,789 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,789 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:22,789 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:22,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:37:22,789 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:22,790 INFO L85 PathProgramCache]: Analyzing trace with hash -700300290, now seen corresponding path program 1 times [2022-04-18 16:37:22,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:22,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241717310] [2022-04-18 16:37:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:22,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:22,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:22,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241717310] [2022-04-18 16:37:22,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241717310] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:22,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:22,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:22,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404864890] [2022-04-18 16:37:22,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:22,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:22,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:22,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:22,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:22,828 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:22,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 459 transitions, 1081 flow. Second operand has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:22,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:22,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:22,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:23,147 INFO L129 PetriNetUnfolder]: 294/2926 cut-off events. [2022-04-18 16:37:23,148 INFO L130 PetriNetUnfolder]: For 363/366 co-relation queries the response was YES. [2022-04-18 16:37:23,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 2926 events. 294/2926 cut-off events. For 363/366 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 21829 event pairs, 174 based on Foata normal form. 0/2758 useless extension candidates. Maximal degree in co-relation 3939. Up to 645 conditions per place. [2022-04-18 16:37:23,167 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 62 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2022-04-18 16:37:23,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 459 transitions, 1210 flow [2022-04-18 16:37:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-04-18 16:37:23,170 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8406326034063261 [2022-04-18 16:37:23,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-04-18 16:37:23,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-04-18 16:37:23,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:23,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-04-18 16:37:23,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,173 INFO L186 Difference]: Start difference. First operand has 459 places, 459 transitions, 1081 flow. Second operand 3 states and 1382 transitions. [2022-04-18 16:37:23,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 459 transitions, 1210 flow [2022-04-18 16:37:23,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 459 transitions, 1206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:23,180 INFO L242 Difference]: Finished difference. Result has 458 places, 458 transitions, 1079 flow [2022-04-18 16:37:23,181 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1079, PETRI_PLACES=458, PETRI_TRANSITIONS=458} [2022-04-18 16:37:23,181 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -49 predicate places. [2022-04-18 16:37:23,181 INFO L478 AbstractCegarLoop]: Abstraction has has 458 places, 458 transitions, 1079 flow [2022-04-18 16:37:23,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,181 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:23,182 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:23,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:37:23,182 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:23,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:23,182 INFO L85 PathProgramCache]: Analyzing trace with hash 996414837, now seen corresponding path program 1 times [2022-04-18 16:37:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:23,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634689006] [2022-04-18 16:37:23,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:23,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:23,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:23,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634689006] [2022-04-18 16:37:23,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634689006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:23,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:23,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677771826] [2022-04-18 16:37:23,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:23,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:23,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:23,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:23,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:23,223 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:23,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 458 transitions, 1079 flow. Second operand has 3 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:23,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:23,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:23,523 INFO L129 PetriNetUnfolder]: 292/2918 cut-off events. [2022-04-18 16:37:23,523 INFO L130 PetriNetUnfolder]: For 361/364 co-relation queries the response was YES. [2022-04-18 16:37:23,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3977 conditions, 2918 events. 292/2918 cut-off events. For 361/364 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 21710 event pairs, 172 based on Foata normal form. 0/2756 useless extension candidates. Maximal degree in co-relation 3923. Up to 637 conditions per place. [2022-04-18 16:37:23,541 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 61 selfloop transitions, 2 changer transitions 0/458 dead transitions. [2022-04-18 16:37:23,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 458 transitions, 1206 flow [2022-04-18 16:37:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:23,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:23,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1381 transitions. [2022-04-18 16:37:23,544 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8400243309002433 [2022-04-18 16:37:23,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1381 transitions. [2022-04-18 16:37:23,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1381 transitions. [2022-04-18 16:37:23,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:23,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1381 transitions. [2022-04-18 16:37:23,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,546 INFO L186 Difference]: Start difference. First operand has 458 places, 458 transitions, 1079 flow. Second operand 3 states and 1381 transitions. [2022-04-18 16:37:23,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 458 transitions, 1206 flow [2022-04-18 16:37:23,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 458 transitions, 1202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:23,553 INFO L242 Difference]: Finished difference. Result has 457 places, 457 transitions, 1077 flow [2022-04-18 16:37:23,553 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1073, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1077, PETRI_PLACES=457, PETRI_TRANSITIONS=457} [2022-04-18 16:37:23,553 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -50 predicate places. [2022-04-18 16:37:23,553 INFO L478 AbstractCegarLoop]: Abstraction has has 457 places, 457 transitions, 1077 flow [2022-04-18 16:37:23,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.6666666666667) internal successors, (1340), 3 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,554 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:23,554 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:23,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:37:23,554 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 130 more)] === [2022-04-18 16:37:23,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:23,554 INFO L85 PathProgramCache]: Analyzing trace with hash 332687628, now seen corresponding path program 1 times [2022-04-18 16:37:23,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:23,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873726935] [2022-04-18 16:37:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:23,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:23,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:23,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873726935] [2022-04-18 16:37:23,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873726935] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:23,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:23,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:23,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437961190] [2022-04-18 16:37:23,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:23,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:23,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:23,595 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 548 [2022-04-18 16:37:23,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 457 transitions, 1077 flow. Second operand has 3 states, 3 states have (on average 448.6666666666667) internal successors, (1346), 3 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:23,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 548 [2022-04-18 16:37:23,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:23,908 INFO L129 PetriNetUnfolder]: 290/2910 cut-off events. [2022-04-18 16:37:23,909 INFO L130 PetriNetUnfolder]: For 359/362 co-relation queries the response was YES. [2022-04-18 16:37:23,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3961 conditions, 2910 events. 290/2910 cut-off events. For 359/362 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 21638 event pairs, 170 based on Foata normal form. 0/2754 useless extension candidates. Maximal degree in co-relation 3907. Up to 629 conditions per place. [2022-04-18 16:37:23,919 INFO L132 encePairwiseOnDemand]: 545/548 looper letters, 0 selfloop transitions, 0 changer transitions 457/457 dead transitions. [2022-04-18 16:37:23,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 457 transitions, 1202 flow [2022-04-18 16:37:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2022-04-18 16:37:23,925 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8394160583941606 [2022-04-18 16:37:23,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2022-04-18 16:37:23,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2022-04-18 16:37:23,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:23,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2022-04-18 16:37:23,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 548.0) internal successors, (2192), 4 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,928 INFO L186 Difference]: Start difference. First operand has 457 places, 457 transitions, 1077 flow. Second operand 3 states and 1380 transitions. [2022-04-18 16:37:23,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 457 transitions, 1202 flow [2022-04-18 16:37:23,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 457 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:23,932 INFO L242 Difference]: Finished difference. Result has 456 places, 0 transitions, 0 flow [2022-04-18 16:37:23,933 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=548, PETRI_DIFFERENCE_MINUEND_FLOW=1071, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=456, PETRI_TRANSITIONS=0} [2022-04-18 16:37:23,933 INFO L335 CegarLoopForPetriNet]: 507 programPoint places, -51 predicate places. [2022-04-18 16:37:23,933 INFO L478 AbstractCegarLoop]: Abstraction has has 456 places, 0 transitions, 0 flow [2022-04-18 16:37:23,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.6666666666667) internal successors, (1346), 3 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:23,935 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (133 of 134 remaining) [2022-04-18 16:37:23,935 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (132 of 134 remaining) [2022-04-18 16:37:23,935 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (131 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (130 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (129 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (128 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (127 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (126 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (125 of 134 remaining) [2022-04-18 16:37:23,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (124 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (123 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (122 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err37ASSERT_VIOLATIONDATA_RACE (121 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err38ASSERT_VIOLATIONDATA_RACE (120 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err45ASSERT_VIOLATIONDATA_RACE (119 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (118 of 134 remaining) [2022-04-18 16:37:23,937 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (117 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (116 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (115 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err46ASSERT_VIOLATIONDATA_RACE (114 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err39ASSERT_VIOLATIONDATA_RACE (113 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err40ASSERT_VIOLATIONDATA_RACE (112 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err47ASSERT_VIOLATIONDATA_RACE (111 of 134 remaining) [2022-04-18 16:37:23,938 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (110 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (109 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err48ASSERT_VIOLATIONDATA_RACE (108 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (107 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (106 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err41ASSERT_VIOLATIONDATA_RACE (105 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err42ASSERT_VIOLATIONDATA_RACE (104 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err49ASSERT_VIOLATIONDATA_RACE (103 of 134 remaining) [2022-04-18 16:37:23,939 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (102 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (101 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err50ASSERT_VIOLATIONDATA_RACE (100 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err43ASSERT_VIOLATIONDATA_RACE (99 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (98 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err36ASSERT_VIOLATIONDATA_RACE (97 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err51ASSERT_VIOLATIONDATA_RACE (96 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err44ASSERT_VIOLATIONDATA_RACE (95 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err52ASSERT_VIOLATIONDATA_RACE (94 of 134 remaining) [2022-04-18 16:37:23,940 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (93 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (92 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (91 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (90 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (89 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (88 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (87 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (86 of 134 remaining) [2022-04-18 16:37:23,941 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (85 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (84 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (83 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (82 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (81 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (80 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (79 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (78 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (77 of 134 remaining) [2022-04-18 16:37:23,942 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (76 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (75 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (74 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (73 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (72 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (71 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (70 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (69 of 134 remaining) [2022-04-18 16:37:23,943 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (68 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (67 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (66 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (65 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (64 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (63 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (61 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (60 of 134 remaining) [2022-04-18 16:37:23,944 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (59 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (58 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (57 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (56 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (55 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (54 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (53 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (52 of 134 remaining) [2022-04-18 16:37:23,945 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (51 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (50 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (49 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err37ASSERT_VIOLATIONDATA_RACE (48 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err38ASSERT_VIOLATIONDATA_RACE (47 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err45ASSERT_VIOLATIONDATA_RACE (46 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (45 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (44 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (43 of 134 remaining) [2022-04-18 16:37:23,946 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (42 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err46ASSERT_VIOLATIONDATA_RACE (41 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err39ASSERT_VIOLATIONDATA_RACE (40 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err40ASSERT_VIOLATIONDATA_RACE (39 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err47ASSERT_VIOLATIONDATA_RACE (38 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (36 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err48ASSERT_VIOLATIONDATA_RACE (35 of 134 remaining) [2022-04-18 16:37:23,947 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (34 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (33 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err41ASSERT_VIOLATIONDATA_RACE (32 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err42ASSERT_VIOLATIONDATA_RACE (31 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err49ASSERT_VIOLATIONDATA_RACE (30 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (29 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (28 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err50ASSERT_VIOLATIONDATA_RACE (27 of 134 remaining) [2022-04-18 16:37:23,948 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err43ASSERT_VIOLATIONDATA_RACE (26 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (25 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err36ASSERT_VIOLATIONDATA_RACE (24 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err51ASSERT_VIOLATIONDATA_RACE (23 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err44ASSERT_VIOLATIONDATA_RACE (22 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err52ASSERT_VIOLATIONDATA_RACE (21 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (20 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (19 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (18 of 134 remaining) [2022-04-18 16:37:23,949 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (17 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (16 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (15 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (14 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (13 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (12 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (11 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (9 of 134 remaining) [2022-04-18 16:37:23,950 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (8 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (7 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (6 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (5 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (4 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (3 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (2 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (1 of 134 remaining) [2022-04-18 16:37:23,951 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (0 of 134 remaining) [2022-04-18 16:37:23,951 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:37:23,954 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:23,957 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:37:23,958 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:37:23,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:37:23 BasicIcfg [2022-04-18 16:37:23,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:37:23,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:37:23,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:37:23,961 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:37:23,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:55" (3/4) ... [2022-04-18 16:37:23,962 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:37:23,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:37:23,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:37:23,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-04-18 16:37:23,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:37:23,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:37:23,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:37:23,993 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:37:23,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:37:23,993 INFO L158 Benchmark]: Toolchain (without parser) took 29914.27ms. Allocated memory was 90.2MB in the beginning and 8.3GB in the end (delta: 8.2GB). Free memory was 57.5MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-04-18 16:37:23,994 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:37:23,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.56ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 57.3MB in the beginning and 91.9MB in the end (delta: -34.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:37:23,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.21ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 88.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:23,994 INFO L158 Benchmark]: Boogie Preprocessor took 40.06ms. Allocated memory is still 119.5MB. Free memory was 88.9MB in the beginning and 85.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:37:23,994 INFO L158 Benchmark]: RCFGBuilder took 687.06ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 54.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-04-18 16:37:23,995 INFO L158 Benchmark]: TraceAbstraction took 28823.53ms. Allocated memory was 119.5MB in the beginning and 8.3GB in the end (delta: 8.2GB). Free memory was 54.2MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2022-04-18 16:37:23,995 INFO L158 Benchmark]: Witness Printer took 32.73ms. Allocated memory is still 8.3GB. Free memory was 6.6GB in the beginning and 6.6GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:37:23,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.56ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 57.3MB in the beginning and 91.9MB in the end (delta: -34.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.21ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 88.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.06ms. Allocated memory is still 119.5MB. Free memory was 88.9MB in the beginning and 85.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 687.06ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 54.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 28823.53ms. Allocated memory was 119.5MB in the beginning and 8.3GB in the end (delta: 8.2GB). Free memory was 54.2MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Witness Printer took 32.73ms. Allocated memory is still 8.3GB. Free memory was 6.6GB in the beginning and 6.6GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 894 locations, 134 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.6s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 434 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 434 mSDsluCounter, 1080 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 186 mSDsCounter, 583 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3503 IncrementalHoareTripleChecker+Invalid, 4086 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 583 mSolverCounterUnsat, 996 mSDtfsCounter, 3503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1163occurred in iteration=17, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 2431 NumberOfCodeBlocks, 2431 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2407 ConstructedInterpolants, 0 QuantifiedInterpolants, 3416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 71 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:37:24,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE