./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-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-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 7071c3ff0bb3d9f81f254bc51d27ce3551a85cc081b1b878560a7d4c8f67639e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:44,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:44,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:44,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:44,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:44,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:44,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:44,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:44,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:44,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:44,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:44,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:44,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:44,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:44,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:44,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:44,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:44,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:44,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:44,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:44,328 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:44,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:44,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:44,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:44,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:44,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:44,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:44,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:44,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:44,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:44,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:44,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:44,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:44,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:44,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:44,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:44,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:44,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:44,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:44,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:44,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:44,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:44,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:44,382 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:44,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:44,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:44,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:44,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:44,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:44,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:44,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:44,390 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:44,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:44,391 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:44,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:44,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:44,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:44,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:44,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:44,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:44,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:44,393 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:44,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:44,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:44,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:44,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:44,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:44,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:44,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:44,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:44,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:44,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:44,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:44,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:44,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:44,396 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:44,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:44,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:44,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7071c3ff0bb3d9f81f254bc51d27ce3551a85cc081b1b878560a7d4c8f67639e [2022-04-18 16:36:44,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:44,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:44,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:44,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:44,625 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:44,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2022-04-18 16:36:44,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f5db07c/de9e8114d2fc4419a8d72f7595d20c02/FLAG755d6a81c [2022-04-18 16:36:45,124 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:45,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2022-04-18 16:36:45,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f5db07c/de9e8114d2fc4419a8d72f7595d20c02/FLAG755d6a81c [2022-04-18 16:36:45,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f5db07c/de9e8114d2fc4419a8d72f7595d20c02 [2022-04-18 16:36:45,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:45,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:45,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:45,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:45,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:45,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1159ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45, skipping insertion in model container [2022-04-18 16:36:45,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:45,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:45,375 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-4.wvr.c[2572,2585] [2022-04-18 16:36:45,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:45,390 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:45,416 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-4.wvr.c[2572,2585] [2022-04-18 16:36:45,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:45,432 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:45,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45 WrapperNode [2022-04-18 16:36:45,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:45,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:45,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:45,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:45,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,476 INFO L137 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 312 [2022-04-18 16:36:45,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:45,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:45,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:45,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:45,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:45,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:45,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:45,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:45,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (1/1) ... [2022-04-18 16:36:45,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:45,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:45,555 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 16:36:45,556 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 16:36:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:45,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:45,589 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 16:36:45,668 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:45,670 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:46,194 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:46,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:46,208 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:46,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:46 BoogieIcfgContainer [2022-04-18 16:36:46,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:46,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:46,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:46,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:46,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:45" (1/3) ... [2022-04-18 16:36:46,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd27742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:46, skipping insertion in model container [2022-04-18 16:36:46,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:45" (2/3) ... [2022-04-18 16:36:46,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd27742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:46, skipping insertion in model container [2022-04-18 16:36:46,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:46" (3/3) ... [2022-04-18 16:36:46,220 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2022-04-18 16:36:46,224 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:46,225 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:46,225 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-04-18 16:36:46,225 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:46,319 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:36:46,362 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:46,369 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 16:36:46,369 INFO L341 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2022-04-18 16:36:46,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 409 transitions, 834 flow [2022-04-18 16:36:46,496 INFO L129 PetriNetUnfolder]: 21/407 cut-off events. [2022-04-18 16:36:46,497 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:36:46,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 407 events. 21/407 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 544 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 262. Up to 2 conditions per place. [2022-04-18 16:36:46,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 409 transitions, 834 flow [2022-04-18 16:36:46,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 376 places, 389 transitions, 790 flow [2022-04-18 16:36:46,524 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2022-04-18 16:36:46,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:46,524 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:46,525 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 16:36:46,525 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:46,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:46,530 INFO L85 PathProgramCache]: Analyzing trace with hash -829400466, now seen corresponding path program 1 times [2022-04-18 16:36:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:46,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302944754] [2022-04-18 16:36:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:46,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:46,678 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 16:36:46,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:46,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302944754] [2022-04-18 16:36:46,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302944754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:46,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:46,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797061139] [2022-04-18 16:36:46,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:46,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:46,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:46,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:46,727 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 409 [2022-04-18 16:36:46,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 389 transitions, 790 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:46,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:46,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 409 [2022-04-18 16:36:46,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:47,030 INFO L129 PetriNetUnfolder]: 49/1238 cut-off events. [2022-04-18 16:36:47,030 INFO L130 PetriNetUnfolder]: For 32/62 co-relation queries the response was YES. [2022-04-18 16:36:47,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1313 conditions, 1238 events. 49/1238 cut-off events. For 32/62 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5906 event pairs, 15 based on Foata normal form. 28/1018 useless extension candidates. Maximal degree in co-relation 1105. Up to 55 conditions per place. [2022-04-18 16:36:47,044 INFO L132 encePairwiseOnDemand]: 394/409 looper letters, 16 selfloop transitions, 2 changer transitions 4/376 dead transitions. [2022-04-18 16:36:47,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 376 transitions, 800 flow [2022-04-18 16:36:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2022-04-18 16:36:47,067 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9445802770986145 [2022-04-18 16:36:47,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1159 transitions. [2022-04-18 16:36:47,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1159 transitions. [2022-04-18 16:36:47,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:47,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1159 transitions. [2022-04-18 16:36:47,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,102 INFO L186 Difference]: Start difference. First operand has 376 places, 389 transitions, 790 flow. Second operand 3 states and 1159 transitions. [2022-04-18 16:36:47,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 376 transitions, 800 flow [2022-04-18 16:36:47,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 376 transitions, 792 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:47,121 INFO L242 Difference]: Finished difference. Result has 373 places, 372 transitions, 752 flow [2022-04-18 16:36:47,123 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=752, PETRI_PLACES=373, PETRI_TRANSITIONS=372} [2022-04-18 16:36:47,127 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -3 predicate places. [2022-04-18 16:36:47,128 INFO L478 AbstractCegarLoop]: Abstraction has has 373 places, 372 transitions, 752 flow [2022-04-18 16:36:47,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,129 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:47,129 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 16:36:47,130 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:47,130 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:47,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:47,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1542791520, now seen corresponding path program 1 times [2022-04-18 16:36:47,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:47,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96375861] [2022-04-18 16:36:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:47,201 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 16:36:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:47,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96375861] [2022-04-18 16:36:47,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96375861] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:47,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:47,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109256237] [2022-04-18 16:36:47,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:47,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:47,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:47,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:47,211 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 409 [2022-04-18 16:36:47,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 372 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:47,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 409 [2022-04-18 16:36:47,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:47,606 INFO L129 PetriNetUnfolder]: 120/1478 cut-off events. [2022-04-18 16:36:47,606 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-04-18 16:36:47,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 1478 events. 120/1478 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7375 event pairs, 51 based on Foata normal form. 0/1172 useless extension candidates. Maximal degree in co-relation 1628. Up to 170 conditions per place. [2022-04-18 16:36:47,623 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 28 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-04-18 16:36:47,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 371 transitions, 810 flow [2022-04-18 16:36:47,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-04-18 16:36:47,627 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9152404237978811 [2022-04-18 16:36:47,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-04-18 16:36:47,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-04-18 16:36:47,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:47,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-04-18 16:36:47,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,635 INFO L186 Difference]: Start difference. First operand has 373 places, 372 transitions, 752 flow. Second operand 3 states and 1123 transitions. [2022-04-18 16:36:47,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 371 transitions, 810 flow [2022-04-18 16:36:47,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 371 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:47,644 INFO L242 Difference]: Finished difference. Result has 368 places, 371 transitions, 750 flow [2022-04-18 16:36:47,645 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=368, PETRI_TRANSITIONS=371} [2022-04-18 16:36:47,646 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -8 predicate places. [2022-04-18 16:36:47,646 INFO L478 AbstractCegarLoop]: Abstraction has has 368 places, 371 transitions, 750 flow [2022-04-18 16:36:47,647 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,647 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:47,647 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 16:36:47,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:47,648 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:47,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash 824047622, now seen corresponding path program 1 times [2022-04-18 16:36:47,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:47,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205340249] [2022-04-18 16:36:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:47,714 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 16:36:47,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:47,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205340249] [2022-04-18 16:36:47,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205340249] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:47,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:47,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:47,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631594204] [2022-04-18 16:36:47,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:47,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:47,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:47,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:47,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:47,720 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 409 [2022-04-18 16:36:47,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 371 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:47,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:47,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 409 [2022-04-18 16:36:47,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,045 INFO L129 PetriNetUnfolder]: 79/1238 cut-off events. [2022-04-18 16:36:48,046 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-04-18 16:36:48,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 1238 events. 79/1238 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5670 event pairs, 26 based on Foata normal form. 0/1014 useless extension candidates. Maximal degree in co-relation 1307. Up to 97 conditions per place. [2022-04-18 16:36:48,060 INFO L132 encePairwiseOnDemand]: 401/409 looper letters, 19 selfloop transitions, 1 changer transitions 0/364 dead transitions. [2022-04-18 16:36:48,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 364 transitions, 776 flow [2022-04-18 16:36:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1128 transitions. [2022-04-18 16:36:48,064 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9193154034229829 [2022-04-18 16:36:48,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1128 transitions. [2022-04-18 16:36:48,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1128 transitions. [2022-04-18 16:36:48,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1128 transitions. [2022-04-18 16:36:48,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,072 INFO L186 Difference]: Start difference. First operand has 368 places, 371 transitions, 750 flow. Second operand 3 states and 1128 transitions. [2022-04-18 16:36:48,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 364 transitions, 776 flow [2022-04-18 16:36:48,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 364 transitions, 772 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:48,079 INFO L242 Difference]: Finished difference. Result has 361 places, 364 transitions, 734 flow [2022-04-18 16:36:48,080 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=361, PETRI_TRANSITIONS=364} [2022-04-18 16:36:48,081 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -15 predicate places. [2022-04-18 16:36:48,081 INFO L478 AbstractCegarLoop]: Abstraction has has 361 places, 364 transitions, 734 flow [2022-04-18 16:36:48,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,082 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,083 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:48,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:48,083 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1376666492, now seen corresponding path program 1 times [2022-04-18 16:36:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490484564] [2022-04-18 16:36:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,136 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 16:36:48,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490484564] [2022-04-18 16:36:48,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490484564] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927773712] [2022-04-18 16:36:48,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:48,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:48,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:48,141 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 409 [2022-04-18 16:36:48,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 364 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 409 [2022-04-18 16:36:48,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,365 INFO L129 PetriNetUnfolder]: 108/1275 cut-off events. [2022-04-18 16:36:48,365 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-04-18 16:36:48,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 1275 events. 108/1275 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6013 event pairs, 51 based on Foata normal form. 0/1047 useless extension candidates. Maximal degree in co-relation 1402. Up to 155 conditions per place. [2022-04-18 16:36:48,378 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 22 selfloop transitions, 2 changer transitions 0/363 dead transitions. [2022-04-18 16:36:48,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 363 transitions, 780 flow [2022-04-18 16:36:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-04-18 16:36:48,381 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9250203748981255 [2022-04-18 16:36:48,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-04-18 16:36:48,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-04-18 16:36:48,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-04-18 16:36:48,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,392 INFO L186 Difference]: Start difference. First operand has 361 places, 364 transitions, 734 flow. Second operand 3 states and 1135 transitions. [2022-04-18 16:36:48,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 363 transitions, 780 flow [2022-04-18 16:36:48,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 363 transitions, 779 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:48,398 INFO L242 Difference]: Finished difference. Result has 361 places, 363 transitions, 735 flow [2022-04-18 16:36:48,398 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=735, PETRI_PLACES=361, PETRI_TRANSITIONS=363} [2022-04-18 16:36:48,401 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -15 predicate places. [2022-04-18 16:36:48,401 INFO L478 AbstractCegarLoop]: Abstraction has has 361 places, 363 transitions, 735 flow [2022-04-18 16:36:48,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,402 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,402 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 16:36:48,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:48,402 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1995673666, now seen corresponding path program 1 times [2022-04-18 16:36:48,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749827260] [2022-04-18 16:36:48,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,611 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 16:36:48,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749827260] [2022-04-18 16:36:48,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749827260] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:48,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837912418] [2022-04-18 16:36:48,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:48,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:48,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:48,616 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 409 [2022-04-18 16:36:48,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 363 transitions, 735 flow. Second operand has 6 states, 6 states have (on average 333.8333333333333) internal successors, (2003), 6 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:48,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 409 [2022-04-18 16:36:48,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:50,884 INFO L129 PetriNetUnfolder]: 2724/13352 cut-off events. [2022-04-18 16:36:50,884 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-04-18 16:36:50,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17271 conditions, 13352 events. 2724/13352 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 133692 event pairs, 2226 based on Foata normal form. 0/10833 useless extension candidates. Maximal degree in co-relation 17234. Up to 3901 conditions per place. [2022-04-18 16:36:51,025 INFO L132 encePairwiseOnDemand]: 403/409 looper letters, 57 selfloop transitions, 5 changer transitions 0/362 dead transitions. [2022-04-18 16:36:51,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 362 transitions, 857 flow [2022-04-18 16:36:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:51,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:51,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2055 transitions. [2022-04-18 16:36:51,031 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8374083129584352 [2022-04-18 16:36:51,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2055 transitions. [2022-04-18 16:36:51,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2055 transitions. [2022-04-18 16:36:51,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2055 transitions. [2022-04-18 16:36:51,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,046 INFO L186 Difference]: Start difference. First operand has 361 places, 363 transitions, 735 flow. Second operand 6 states and 2055 transitions. [2022-04-18 16:36:51,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 362 transitions, 857 flow [2022-04-18 16:36:51,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 362 transitions, 853 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:51,053 INFO L242 Difference]: Finished difference. Result has 363 places, 362 transitions, 739 flow [2022-04-18 16:36:51,054 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=739, PETRI_PLACES=363, PETRI_TRANSITIONS=362} [2022-04-18 16:36:51,055 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -13 predicate places. [2022-04-18 16:36:51,055 INFO L478 AbstractCegarLoop]: Abstraction has has 363 places, 362 transitions, 739 flow [2022-04-18 16:36:51,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.8333333333333) internal successors, (2003), 6 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,057 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,057 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] [2022-04-18 16:36:51,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:51,057 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1394149354, now seen corresponding path program 1 times [2022-04-18 16:36:51,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110725383] [2022-04-18 16:36:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:51,096 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 16:36:51,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:51,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110725383] [2022-04-18 16:36:51,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110725383] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:51,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:51,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:51,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368969163] [2022-04-18 16:36:51,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:51,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:51,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:51,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:51,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:51,101 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 409 [2022-04-18 16:36:51,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 362 transitions, 739 flow. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:51,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 409 [2022-04-18 16:36:51,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:51,259 INFO L129 PetriNetUnfolder]: 36/1011 cut-off events. [2022-04-18 16:36:51,259 INFO L130 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-04-18 16:36:51,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 1011 events. 36/1011 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4199 event pairs, 8 based on Foata normal form. 0/842 useless extension candidates. Maximal degree in co-relation 1040. Up to 32 conditions per place. [2022-04-18 16:36:51,266 INFO L132 encePairwiseOnDemand]: 405/409 looper letters, 11 selfloop transitions, 1 changer transitions 0/359 dead transitions. [2022-04-18 16:36:51,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 359 transitions, 757 flow [2022-04-18 16:36:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1152 transitions. [2022-04-18 16:36:51,270 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9388753056234719 [2022-04-18 16:36:51,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1152 transitions. [2022-04-18 16:36:51,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1152 transitions. [2022-04-18 16:36:51,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1152 transitions. [2022-04-18 16:36:51,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,277 INFO L186 Difference]: Start difference. First operand has 363 places, 362 transitions, 739 flow. Second operand 3 states and 1152 transitions. [2022-04-18 16:36:51,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 359 transitions, 757 flow [2022-04-18 16:36:51,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 359 transitions, 747 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:51,283 INFO L242 Difference]: Finished difference. Result has 357 places, 359 transitions, 725 flow [2022-04-18 16:36:51,284 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=725, PETRI_PLACES=357, PETRI_TRANSITIONS=359} [2022-04-18 16:36:51,284 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -19 predicate places. [2022-04-18 16:36:51,285 INFO L478 AbstractCegarLoop]: Abstraction has has 357 places, 359 transitions, 725 flow [2022-04-18 16:36:51,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,285 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,285 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:36:51,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:51,286 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,286 INFO L85 PathProgramCache]: Analyzing trace with hash -562933195, now seen corresponding path program 1 times [2022-04-18 16:36:51,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515368777] [2022-04-18 16:36:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:51,335 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 16:36:51,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:51,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515368777] [2022-04-18 16:36:51,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515368777] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:51,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:51,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:51,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947409908] [2022-04-18 16:36:51,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:51,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:51,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:51,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:51,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:51,339 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 409 [2022-04-18 16:36:51,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 359 transitions, 725 flow. Second operand has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:51,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 409 [2022-04-18 16:36:51,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:51,470 INFO L129 PetriNetUnfolder]: 40/1162 cut-off events. [2022-04-18 16:36:51,470 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:36:51,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 1162 events. 40/1162 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5280 event pairs, 5 based on Foata normal form. 0/978 useless extension candidates. Maximal degree in co-relation 1177. Up to 22 conditions per place. [2022-04-18 16:36:51,481 INFO L132 encePairwiseOnDemand]: 402/409 looper letters, 13 selfloop transitions, 3 changer transitions 0/356 dead transitions. [2022-04-18 16:36:51,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 356 transitions, 752 flow [2022-04-18 16:36:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1148 transitions. [2022-04-18 16:36:51,484 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9356153219233904 [2022-04-18 16:36:51,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1148 transitions. [2022-04-18 16:36:51,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1148 transitions. [2022-04-18 16:36:51,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1148 transitions. [2022-04-18 16:36:51,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,490 INFO L186 Difference]: Start difference. First operand has 357 places, 359 transitions, 725 flow. Second operand 3 states and 1148 transitions. [2022-04-18 16:36:51,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 356 transitions, 752 flow [2022-04-18 16:36:51,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 356 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:51,497 INFO L242 Difference]: Finished difference. Result has 354 places, 355 transitions, 722 flow [2022-04-18 16:36:51,498 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=354, PETRI_TRANSITIONS=355} [2022-04-18 16:36:51,498 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -22 predicate places. [2022-04-18 16:36:51,498 INFO L478 AbstractCegarLoop]: Abstraction has has 354 places, 355 transitions, 722 flow [2022-04-18 16:36:51,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,499 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,499 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] [2022-04-18 16:36:51,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:51,500 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:51,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1082579597, now seen corresponding path program 1 times [2022-04-18 16:36:51,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513756321] [2022-04-18 16:36:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:51,536 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 16:36:51,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:51,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513756321] [2022-04-18 16:36:51,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513756321] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:51,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:51,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:51,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731279060] [2022-04-18 16:36:51,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:51,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:51,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:51,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:51,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:51,540 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 409 [2022-04-18 16:36:51,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 355 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:51,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 409 [2022-04-18 16:36:51,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:51,650 INFO L129 PetriNetUnfolder]: 50/554 cut-off events. [2022-04-18 16:36:51,650 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-04-18 16:36:51,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 554 events. 50/554 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2031 event pairs, 23 based on Foata normal form. 1/502 useless extension candidates. Maximal degree in co-relation 642. Up to 74 conditions per place. [2022-04-18 16:36:51,655 INFO L132 encePairwiseOnDemand]: 387/409 looper letters, 32 selfloop transitions, 8 changer transitions 5/343 dead transitions. [2022-04-18 16:36:51,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 343 transitions, 783 flow [2022-04-18 16:36:51,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:51,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1075 transitions. [2022-04-18 16:36:51,659 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.876120619396903 [2022-04-18 16:36:51,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1075 transitions. [2022-04-18 16:36:51,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1075 transitions. [2022-04-18 16:36:51,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1075 transitions. [2022-04-18 16:36:51,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.3333333333333) internal successors, (1075), 3 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,666 INFO L186 Difference]: Start difference. First operand has 354 places, 355 transitions, 722 flow. Second operand 3 states and 1075 transitions. [2022-04-18 16:36:51,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 343 transitions, 783 flow [2022-04-18 16:36:51,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 343 transitions, 777 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:51,672 INFO L242 Difference]: Finished difference. Result has 341 places, 337 transitions, 695 flow [2022-04-18 16:36:51,673 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=341, PETRI_TRANSITIONS=337} [2022-04-18 16:36:51,674 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -35 predicate places. [2022-04-18 16:36:51,674 INFO L478 AbstractCegarLoop]: Abstraction has has 341 places, 337 transitions, 695 flow [2022-04-18 16:36:51,675 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,675 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,675 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] [2022-04-18 16:36:51,676 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:51,676 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:51,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1040817545, now seen corresponding path program 1 times [2022-04-18 16:36:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921051754] [2022-04-18 16:36:51,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:51,763 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 16:36:51,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:51,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921051754] [2022-04-18 16:36:51,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921051754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:51,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:51,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:51,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861926360] [2022-04-18 16:36:51,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:51,765 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:51,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:51,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:51,767 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 409 [2022-04-18 16:36:51,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 337 transitions, 695 flow. Second operand has 6 states, 6 states have (on average 338.8333333333333) internal successors, (2033), 6 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:51,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:51,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 409 [2022-04-18 16:36:51,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:53,199 INFO L129 PetriNetUnfolder]: 2603/8429 cut-off events. [2022-04-18 16:36:53,200 INFO L130 PetriNetUnfolder]: For 25/75 co-relation queries the response was YES. [2022-04-18 16:36:53,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12505 conditions, 8429 events. 2603/8429 cut-off events. For 25/75 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 70427 event pairs, 612 based on Foata normal form. 25/7369 useless extension candidates. Maximal degree in co-relation 12466. Up to 1425 conditions per place. [2022-04-18 16:36:53,268 INFO L132 encePairwiseOnDemand]: 404/409 looper letters, 169 selfloop transitions, 4 changer transitions 0/456 dead transitions. [2022-04-18 16:36:53,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 456 transitions, 1279 flow [2022-04-18 16:36:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:53,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2196 transitions. [2022-04-18 16:36:53,274 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8948655256723717 [2022-04-18 16:36:53,274 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2196 transitions. [2022-04-18 16:36:53,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2196 transitions. [2022-04-18 16:36:53,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:53,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2196 transitions. [2022-04-18 16:36:53,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 366.0) internal successors, (2196), 6 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,287 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,287 INFO L186 Difference]: Start difference. First operand has 341 places, 337 transitions, 695 flow. Second operand 6 states and 2196 transitions. [2022-04-18 16:36:53,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 456 transitions, 1279 flow [2022-04-18 16:36:53,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 456 transitions, 1263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:53,295 INFO L242 Difference]: Finished difference. Result has 338 places, 336 transitions, 685 flow [2022-04-18 16:36:53,296 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=685, PETRI_PLACES=338, PETRI_TRANSITIONS=336} [2022-04-18 16:36:53,297 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -38 predicate places. [2022-04-18 16:36:53,297 INFO L478 AbstractCegarLoop]: Abstraction has has 338 places, 336 transitions, 685 flow [2022-04-18 16:36:53,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.8333333333333) internal successors, (2033), 6 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,298 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:53,298 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 16:36:53,299 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:53,299 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:53,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash 899767559, now seen corresponding path program 1 times [2022-04-18 16:36:53,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:53,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266859494] [2022-04-18 16:36:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:53,329 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 16:36:53,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:53,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266859494] [2022-04-18 16:36:53,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266859494] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:53,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:53,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:53,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547018933] [2022-04-18 16:36:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:53,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:53,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:53,333 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 409 [2022-04-18 16:36:53,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 336 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:53,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 409 [2022-04-18 16:36:53,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:53,449 INFO L129 PetriNetUnfolder]: 71/1011 cut-off events. [2022-04-18 16:36:53,450 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-04-18 16:36:53,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 1011 events. 71/1011 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4154 event pairs, 8 based on Foata normal form. 0/914 useless extension candidates. Maximal degree in co-relation 1078. Up to 86 conditions per place. [2022-04-18 16:36:53,459 INFO L132 encePairwiseOnDemand]: 402/409 looper letters, 17 selfloop transitions, 2 changer transitions 0/335 dead transitions. [2022-04-18 16:36:53,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 335 transitions, 723 flow [2022-04-18 16:36:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:53,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:53,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2022-04-18 16:36:53,462 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9315403422982885 [2022-04-18 16:36:53,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1143 transitions. [2022-04-18 16:36:53,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1143 transitions. [2022-04-18 16:36:53,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:53,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1143 transitions. [2022-04-18 16:36:53,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,469 INFO L186 Difference]: Start difference. First operand has 338 places, 336 transitions, 685 flow. Second operand 3 states and 1143 transitions. [2022-04-18 16:36:53,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 335 transitions, 723 flow [2022-04-18 16:36:53,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 335 transitions, 716 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:53,475 INFO L242 Difference]: Finished difference. Result has 332 places, 333 transitions, 682 flow [2022-04-18 16:36:53,475 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2022-04-18 16:36:53,476 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -44 predicate places. [2022-04-18 16:36:53,476 INFO L478 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 682 flow [2022-04-18 16:36:53,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,477 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:53,477 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] [2022-04-18 16:36:53,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:36:53,478 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:53,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash -623016531, now seen corresponding path program 1 times [2022-04-18 16:36:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:53,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566639448] [2022-04-18 16:36:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:53,533 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 16:36:53,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:53,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566639448] [2022-04-18 16:36:53,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566639448] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:53,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:53,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:53,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407481549] [2022-04-18 16:36:53,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:53,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:53,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:53,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:53,537 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 409 [2022-04-18 16:36:53,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 682 flow. Second operand has 4 states, 4 states have (on average 378.0) internal successors, (1512), 4 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:53,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 409 [2022-04-18 16:36:53,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:53,797 INFO L129 PetriNetUnfolder]: 71/1574 cut-off events. [2022-04-18 16:36:53,798 INFO L130 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-04-18 16:36:53,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1718 conditions, 1574 events. 71/1574 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7728 event pairs, 11 based on Foata normal form. 1/1426 useless extension candidates. Maximal degree in co-relation 1680. Up to 42 conditions per place. [2022-04-18 16:36:53,811 INFO L132 encePairwiseOnDemand]: 403/409 looper letters, 29 selfloop transitions, 6 changer transitions 0/350 dead transitions. [2022-04-18 16:36:53,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 350 transitions, 790 flow [2022-04-18 16:36:53,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:53,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1911 transitions. [2022-04-18 16:36:53,817 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9344743276283619 [2022-04-18 16:36:53,818 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1911 transitions. [2022-04-18 16:36:53,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1911 transitions. [2022-04-18 16:36:53,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:53,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1911 transitions. [2022-04-18 16:36:53,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 382.2) internal successors, (1911), 5 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,830 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,830 INFO L186 Difference]: Start difference. First operand has 332 places, 333 transitions, 682 flow. Second operand 5 states and 1911 transitions. [2022-04-18 16:36:53,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 350 transitions, 790 flow [2022-04-18 16:36:53,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 350 transitions, 790 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:53,837 INFO L242 Difference]: Finished difference. Result has 339 places, 337 transitions, 720 flow [2022-04-18 16:36:53,838 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=720, PETRI_PLACES=339, PETRI_TRANSITIONS=337} [2022-04-18 16:36:53,838 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -37 predicate places. [2022-04-18 16:36:53,839 INFO L478 AbstractCegarLoop]: Abstraction has has 339 places, 337 transitions, 720 flow [2022-04-18 16:36:53,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 378.0) internal successors, (1512), 4 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,839 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:53,840 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 16:36:53,840 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:36:53,840 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:53,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:53,841 INFO L85 PathProgramCache]: Analyzing trace with hash 396882759, now seen corresponding path program 1 times [2022-04-18 16:36:53,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:53,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873294242] [2022-04-18 16:36:53,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:53,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:53,961 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 16:36:53,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873294242] [2022-04-18 16:36:53,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873294242] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:53,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:53,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538922461] [2022-04-18 16:36:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:53,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:53,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:53,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:53,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:53,967 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 409 [2022-04-18 16:36:53,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 337 transitions, 720 flow. Second operand has 6 states, 6 states have (on average 339.8333333333333) internal successors, (2039), 6 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:53,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:53,971 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 409 [2022-04-18 16:36:53,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:56,895 INFO L129 PetriNetUnfolder]: 4362/19808 cut-off events. [2022-04-18 16:36:56,895 INFO L130 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-04-18 16:36:56,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26949 conditions, 19808 events. 4362/19808 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 207402 event pairs, 3600 based on Foata normal form. 0/17751 useless extension candidates. Maximal degree in co-relation 26905. Up to 5907 conditions per place. [2022-04-18 16:36:57,038 INFO L132 encePairwiseOnDemand]: 404/409 looper letters, 144 selfloop transitions, 4 changer transitions 0/432 dead transitions. [2022-04-18 16:36:57,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 432 transitions, 1206 flow [2022-04-18 16:36:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:57,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2171 transitions. [2022-04-18 16:36:57,045 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.884678076609617 [2022-04-18 16:36:57,045 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2171 transitions. [2022-04-18 16:36:57,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2171 transitions. [2022-04-18 16:36:57,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:57,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2171 transitions. [2022-04-18 16:36:57,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.8333333333333) internal successors, (2171), 6 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,058 INFO L186 Difference]: Start difference. First operand has 339 places, 337 transitions, 720 flow. Second operand 6 states and 2171 transitions. [2022-04-18 16:36:57,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 432 transitions, 1206 flow [2022-04-18 16:36:57,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 432 transitions, 1206 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:57,068 INFO L242 Difference]: Finished difference. Result has 343 places, 336 transitions, 726 flow [2022-04-18 16:36:57,068 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=726, PETRI_PLACES=343, PETRI_TRANSITIONS=336} [2022-04-18 16:36:57,071 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -33 predicate places. [2022-04-18 16:36:57,071 INFO L478 AbstractCegarLoop]: Abstraction has has 343 places, 336 transitions, 726 flow [2022-04-18 16:36:57,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 339.8333333333333) internal successors, (2039), 6 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,073 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:57,073 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] [2022-04-18 16:36:57,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:36:57,073 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:36:57,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:57,074 INFO L85 PathProgramCache]: Analyzing trace with hash -369530751, now seen corresponding path program 1 times [2022-04-18 16:36:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:57,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775387572] [2022-04-18 16:36:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:57,206 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 16:36:57,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:57,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775387572] [2022-04-18 16:36:57,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775387572] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:57,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:57,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:57,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87860916] [2022-04-18 16:36:57,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:57,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:57,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:57,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:57,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:57,214 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 409 [2022-04-18 16:36:57,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 336 transitions, 726 flow. Second operand has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:57,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:57,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 409 [2022-04-18 16:36:57,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:59,957 INFO L129 PetriNetUnfolder]: 6712/19716 cut-off events. [2022-04-18 16:36:59,957 INFO L130 PetriNetUnfolder]: For 2202/2202 co-relation queries the response was YES. [2022-04-18 16:37:00,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32340 conditions, 19716 events. 6712/19716 cut-off events. For 2202/2202 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 185542 event pairs, 2803 based on Foata normal form. 0/18023 useless extension candidates. Maximal degree in co-relation 32295. Up to 5120 conditions per place. [2022-04-18 16:37:00,077 INFO L132 encePairwiseOnDemand]: 403/409 looper letters, 191 selfloop transitions, 6 changer transitions 0/471 dead transitions. [2022-04-18 16:37:00,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 471 transitions, 1398 flow [2022-04-18 16:37:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2181 transitions. [2022-04-18 16:37:00,083 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8887530562347188 [2022-04-18 16:37:00,083 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2181 transitions. [2022-04-18 16:37:00,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2181 transitions. [2022-04-18 16:37:00,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2181 transitions. [2022-04-18 16:37:00,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 363.5) internal successors, (2181), 6 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,094 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,094 INFO L186 Difference]: Start difference. First operand has 343 places, 336 transitions, 726 flow. Second operand 6 states and 2181 transitions. [2022-04-18 16:37:00,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 471 transitions, 1398 flow [2022-04-18 16:37:00,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 471 transitions, 1391 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:37:00,104 INFO L242 Difference]: Finished difference. Result has 343 places, 335 transitions, 729 flow [2022-04-18 16:37:00,105 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=729, PETRI_PLACES=343, PETRI_TRANSITIONS=335} [2022-04-18 16:37:00,106 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -33 predicate places. [2022-04-18 16:37:00,106 INFO L478 AbstractCegarLoop]: Abstraction has has 343 places, 335 transitions, 729 flow [2022-04-18 16:37:00,107 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,107 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,107 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] [2022-04-18 16:37:00,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:37:00,107 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:00,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,108 INFO L85 PathProgramCache]: Analyzing trace with hash 851298763, now seen corresponding path program 1 times [2022-04-18 16:37:00,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506307860] [2022-04-18 16:37:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,173 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 16:37:00,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506307860] [2022-04-18 16:37:00,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506307860] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:00,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854928590] [2022-04-18 16:37:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:00,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:00,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:00,177 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 409 [2022-04-18 16:37:00,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 335 transitions, 729 flow. Second operand has 4 states, 4 states have (on average 348.25) internal successors, (1393), 4 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 409 [2022-04-18 16:37:00,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,395 INFO L129 PetriNetUnfolder]: 136/1254 cut-off events. [2022-04-18 16:37:00,395 INFO L130 PetriNetUnfolder]: For 114/115 co-relation queries the response was YES. [2022-04-18 16:37:00,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1698 conditions, 1254 events. 136/1254 cut-off events. For 114/115 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 7962 event pairs, 4 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 1654. Up to 299 conditions per place. [2022-04-18 16:37:00,406 INFO L132 encePairwiseOnDemand]: 403/409 looper letters, 58 selfloop transitions, 6 changer transitions 0/351 dead transitions. [2022-04-18 16:37:00,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 351 transitions, 892 flow [2022-04-18 16:37:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1790 transitions. [2022-04-18 16:37:00,410 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8753056234718827 [2022-04-18 16:37:00,410 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1790 transitions. [2022-04-18 16:37:00,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1790 transitions. [2022-04-18 16:37:00,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1790 transitions. [2022-04-18 16:37:00,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 358.0) internal successors, (1790), 5 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,419 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,419 INFO L186 Difference]: Start difference. First operand has 343 places, 335 transitions, 729 flow. Second operand 5 states and 1790 transitions. [2022-04-18 16:37:00,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 351 transitions, 892 flow [2022-04-18 16:37:00,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 351 transitions, 880 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:00,425 INFO L242 Difference]: Finished difference. Result has 345 places, 339 transitions, 755 flow [2022-04-18 16:37:00,426 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=755, PETRI_PLACES=345, PETRI_TRANSITIONS=339} [2022-04-18 16:37:00,427 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -31 predicate places. [2022-04-18 16:37:00,427 INFO L478 AbstractCegarLoop]: Abstraction has has 345 places, 339 transitions, 755 flow [2022-04-18 16:37:00,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 348.25) internal successors, (1393), 4 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,428 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:00,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:37:00,428 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash 132819076, now seen corresponding path program 1 times [2022-04-18 16:37:00,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471384245] [2022-04-18 16:37:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,463 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 16:37:00,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471384245] [2022-04-18 16:37:00,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471384245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:00,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481311065] [2022-04-18 16:37:00,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,465 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:00,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:00,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:00,467 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 409 [2022-04-18 16:37:00,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 339 transitions, 755 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 409 [2022-04-18 16:37:00,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,663 INFO L129 PetriNetUnfolder]: 40/844 cut-off events. [2022-04-18 16:37:00,663 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-04-18 16:37:00,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 844 events. 40/844 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2426 event pairs, 16 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 957. Up to 47 conditions per place. [2022-04-18 16:37:00,670 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 12 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2022-04-18 16:37:00,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 339 transitions, 784 flow [2022-04-18 16:37:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2022-04-18 16:37:00,674 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9266503667481663 [2022-04-18 16:37:00,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2022-04-18 16:37:00,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2022-04-18 16:37:00,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2022-04-18 16:37:00,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,679 INFO L186 Difference]: Start difference. First operand has 345 places, 339 transitions, 755 flow. Second operand 3 states and 1137 transitions. [2022-04-18 16:37:00,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 339 transitions, 784 flow [2022-04-18 16:37:00,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 339 transitions, 784 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:00,685 INFO L242 Difference]: Finished difference. Result has 346 places, 338 transitions, 757 flow [2022-04-18 16:37:00,686 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=757, PETRI_PLACES=346, PETRI_TRANSITIONS=338} [2022-04-18 16:37:00,686 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -30 predicate places. [2022-04-18 16:37:00,687 INFO L478 AbstractCegarLoop]: Abstraction has has 346 places, 338 transitions, 757 flow [2022-04-18 16:37:00,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,687 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,688 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 16:37:00,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:37:00,688 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1108911655, now seen corresponding path program 1 times [2022-04-18 16:37:00,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444675735] [2022-04-18 16:37:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,776 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 16:37:00,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444675735] [2022-04-18 16:37:00,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444675735] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:00,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091656084] [2022-04-18 16:37:00,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:00,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:00,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:00,780 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 409 [2022-04-18 16:37:00,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 338 transitions, 757 flow. Second operand has 6 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:00,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 409 [2022-04-18 16:37:00,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:04,023 INFO L129 PetriNetUnfolder]: 6784/23583 cut-off events. [2022-04-18 16:37:04,023 INFO L130 PetriNetUnfolder]: For 1154/1154 co-relation queries the response was YES. [2022-04-18 16:37:04,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36462 conditions, 23583 events. 6784/23583 cut-off events. For 1154/1154 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 235540 event pairs, 2396 based on Foata normal form. 0/22213 useless extension candidates. Maximal degree in co-relation 36412. Up to 4404 conditions per place. [2022-04-18 16:37:04,145 INFO L132 encePairwiseOnDemand]: 385/409 looper letters, 113 selfloop transitions, 21 changer transitions 0/402 dead transitions. [2022-04-18 16:37:04,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 402 transitions, 1165 flow [2022-04-18 16:37:04,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2067 transitions. [2022-04-18 16:37:04,150 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8422982885085575 [2022-04-18 16:37:04,150 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2067 transitions. [2022-04-18 16:37:04,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2067 transitions. [2022-04-18 16:37:04,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:04,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2067 transitions. [2022-04-18 16:37:04,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 344.5) internal successors, (2067), 6 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,159 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 409.0) internal successors, (2863), 7 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,159 INFO L186 Difference]: Start difference. First operand has 346 places, 338 transitions, 757 flow. Second operand 6 states and 2067 transitions. [2022-04-18 16:37:04,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 402 transitions, 1165 flow [2022-04-18 16:37:04,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 402 transitions, 1161 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:04,169 INFO L242 Difference]: Finished difference. Result has 345 places, 334 transitions, 787 flow [2022-04-18 16:37:04,170 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=787, PETRI_PLACES=345, PETRI_TRANSITIONS=334} [2022-04-18 16:37:04,171 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -31 predicate places. [2022-04-18 16:37:04,171 INFO L478 AbstractCegarLoop]: Abstraction has has 345 places, 334 transitions, 787 flow [2022-04-18 16:37:04,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,173 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:04,173 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:04,174 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:37:04,174 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:04,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:04,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1718192988, now seen corresponding path program 1 times [2022-04-18 16:37:04,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:04,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44237506] [2022-04-18 16:37:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:04,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:04,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:04,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44237506] [2022-04-18 16:37:04,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44237506] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:04,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:04,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:04,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570280797] [2022-04-18 16:37:04,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:04,217 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:04,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:04,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:04,218 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 409 [2022-04-18 16:37:04,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 334 transitions, 787 flow. Second operand has 3 states, 3 states have (on average 341.6666666666667) internal successors, (1025), 3 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:04,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 409 [2022-04-18 16:37:04,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:04,402 INFO L129 PetriNetUnfolder]: 118/1195 cut-off events. [2022-04-18 16:37:04,402 INFO L130 PetriNetUnfolder]: For 125/126 co-relation queries the response was YES. [2022-04-18 16:37:04,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1725 conditions, 1195 events. 118/1195 cut-off events. For 125/126 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7298 event pairs, 84 based on Foata normal form. 0/1124 useless extension candidates. Maximal degree in co-relation 1677. Up to 284 conditions per place. [2022-04-18 16:37:04,412 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 39 selfloop transitions, 2 changer transitions 0/334 dead transitions. [2022-04-18 16:37:04,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 334 transitions, 870 flow [2022-04-18 16:37:04,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:04,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:04,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1056 transitions. [2022-04-18 16:37:04,415 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8606356968215159 [2022-04-18 16:37:04,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1056 transitions. [2022-04-18 16:37:04,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1056 transitions. [2022-04-18 16:37:04,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:04,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1056 transitions. [2022-04-18 16:37:04,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,420 INFO L186 Difference]: Start difference. First operand has 345 places, 334 transitions, 787 flow. Second operand 3 states and 1056 transitions. [2022-04-18 16:37:04,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 334 transitions, 870 flow [2022-04-18 16:37:04,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 334 transitions, 828 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:04,426 INFO L242 Difference]: Finished difference. Result has 341 places, 333 transitions, 747 flow [2022-04-18 16:37:04,427 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=341, PETRI_TRANSITIONS=333} [2022-04-18 16:37:04,427 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -35 predicate places. [2022-04-18 16:37:04,428 INFO L478 AbstractCegarLoop]: Abstraction has has 341 places, 333 transitions, 747 flow [2022-04-18 16:37:04,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.6666666666667) internal successors, (1025), 3 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:04,428 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:04,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:37:04,429 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1437238925, now seen corresponding path program 1 times [2022-04-18 16:37:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:04,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790788948] [2022-04-18 16:37:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:04,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:04,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790788948] [2022-04-18 16:37:04,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790788948] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:04,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:04,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075809161] [2022-04-18 16:37:04,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:04,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:04,486 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 409 [2022-04-18 16:37:04,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 333 transitions, 747 flow. Second operand has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:04,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 409 [2022-04-18 16:37:04,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:04,664 INFO L129 PetriNetUnfolder]: 116/1188 cut-off events. [2022-04-18 16:37:04,665 INFO L130 PetriNetUnfolder]: For 113/114 co-relation queries the response was YES. [2022-04-18 16:37:04,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 1188 events. 116/1188 cut-off events. For 113/114 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7101 event pairs, 82 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1548. Up to 277 conditions per place. [2022-04-18 16:37:04,674 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 38 selfloop transitions, 2 changer transitions 0/333 dead transitions. [2022-04-18 16:37:04,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 333 transitions, 828 flow [2022-04-18 16:37:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1055 transitions. [2022-04-18 16:37:04,677 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8598207008964955 [2022-04-18 16:37:04,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1055 transitions. [2022-04-18 16:37:04,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1055 transitions. [2022-04-18 16:37:04,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:04,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1055 transitions. [2022-04-18 16:37:04,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,682 INFO L186 Difference]: Start difference. First operand has 341 places, 333 transitions, 747 flow. Second operand 3 states and 1055 transitions. [2022-04-18 16:37:04,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 333 transitions, 828 flow [2022-04-18 16:37:04,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 333 transitions, 824 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:04,688 INFO L242 Difference]: Finished difference. Result has 340 places, 332 transitions, 745 flow [2022-04-18 16:37:04,688 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=745, PETRI_PLACES=340, PETRI_TRANSITIONS=332} [2022-04-18 16:37:04,689 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -36 predicate places. [2022-04-18 16:37:04,689 INFO L478 AbstractCegarLoop]: Abstraction has has 340 places, 332 transitions, 745 flow [2022-04-18 16:37:04,689 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,689 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:04,689 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] [2022-04-18 16:37:04,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:37:04,690 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:04,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1802768810, now seen corresponding path program 1 times [2022-04-18 16:37:04,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:04,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010406901] [2022-04-18 16:37:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:04,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:37:04,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:04,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010406901] [2022-04-18 16:37:04,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010406901] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:04,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:04,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:04,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647067360] [2022-04-18 16:37:04,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:04,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:04,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:04,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:04,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:04,738 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 409 [2022-04-18 16:37:04,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 332 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:04,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:04,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 409 [2022-04-18 16:37:04,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:05,003 INFO L129 PetriNetUnfolder]: 114/1181 cut-off events. [2022-04-18 16:37:05,003 INFO L130 PetriNetUnfolder]: For 111/112 co-relation queries the response was YES. [2022-04-18 16:37:05,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 1181 events. 114/1181 cut-off events. For 111/112 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7010 event pairs, 80 based on Foata normal form. 0/1120 useless extension candidates. Maximal degree in co-relation 1534. Up to 270 conditions per place. [2022-04-18 16:37:05,011 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 37 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2022-04-18 16:37:05,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 332 transitions, 824 flow [2022-04-18 16:37:05,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1054 transitions. [2022-04-18 16:37:05,013 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8590057049714751 [2022-04-18 16:37:05,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1054 transitions. [2022-04-18 16:37:05,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1054 transitions. [2022-04-18 16:37:05,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:05,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1054 transitions. [2022-04-18 16:37:05,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,018 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,018 INFO L186 Difference]: Start difference. First operand has 340 places, 332 transitions, 745 flow. Second operand 3 states and 1054 transitions. [2022-04-18 16:37:05,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 332 transitions, 824 flow [2022-04-18 16:37:05,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 332 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:05,024 INFO L242 Difference]: Finished difference. Result has 339 places, 331 transitions, 743 flow [2022-04-18 16:37:05,024 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=339, PETRI_TRANSITIONS=331} [2022-04-18 16:37:05,025 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -37 predicate places. [2022-04-18 16:37:05,025 INFO L478 AbstractCegarLoop]: Abstraction has has 339 places, 331 transitions, 743 flow [2022-04-18 16:37:05,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,026 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:05,026 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:05,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:37:05,027 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2022-04-18 16:37:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash 945347585, now seen corresponding path program 1 times [2022-04-18 16:37:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:05,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134105314] [2022-04-18 16:37:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:05,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:05,083 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 16:37:05,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134105314] [2022-04-18 16:37:05,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134105314] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:05,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:05,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:05,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469078028] [2022-04-18 16:37:05,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:05,085 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:05,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:05,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:05,088 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 409 [2022-04-18 16:37:05,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 331 transitions, 743 flow. Second operand has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:05,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 409 [2022-04-18 16:37:05,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:05,268 INFO L129 PetriNetUnfolder]: 112/1174 cut-off events. [2022-04-18 16:37:05,269 INFO L130 PetriNetUnfolder]: For 109/110 co-relation queries the response was YES. [2022-04-18 16:37:05,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1174 events. 112/1174 cut-off events. For 109/110 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6979 event pairs, 78 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 1520. Up to 263 conditions per place. [2022-04-18 16:37:05,275 INFO L132 encePairwiseOnDemand]: 406/409 looper letters, 0 selfloop transitions, 0 changer transitions 331/331 dead transitions. [2022-04-18 16:37:05,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 331 transitions, 820 flow [2022-04-18 16:37:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1053 transitions. [2022-04-18 16:37:05,278 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8581907090464548 [2022-04-18 16:37:05,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1053 transitions. [2022-04-18 16:37:05,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1053 transitions. [2022-04-18 16:37:05,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:05,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1053 transitions. [2022-04-18 16:37:05,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,283 INFO L186 Difference]: Start difference. First operand has 339 places, 331 transitions, 743 flow. Second operand 3 states and 1053 transitions. [2022-04-18 16:37:05,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 331 transitions, 820 flow [2022-04-18 16:37:05,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 331 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:05,287 INFO L242 Difference]: Finished difference. Result has 338 places, 0 transitions, 0 flow [2022-04-18 16:37:05,288 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=338, PETRI_TRANSITIONS=0} [2022-04-18 16:37:05,288 INFO L335 CegarLoopForPetriNet]: 376 programPoint places, -38 predicate places. [2022-04-18 16:37:05,288 INFO L478 AbstractCegarLoop]: Abstraction has has 338 places, 0 transitions, 0 flow [2022-04-18 16:37:05,289 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:37:05,291 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (86 of 87 remaining) [2022-04-18 16:37:05,292 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (85 of 87 remaining) [2022-04-18 16:37:05,292 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (84 of 87 remaining) [2022-04-18 16:37:05,292 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (83 of 87 remaining) [2022-04-18 16:37:05,292 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (82 of 87 remaining) [2022-04-18 16:37:05,292 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (81 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (80 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (79 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (78 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (77 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (76 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (75 of 87 remaining) [2022-04-18 16:37:05,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (74 of 87 remaining) [2022-04-18 16:37:05,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (73 of 87 remaining) [2022-04-18 16:37:05,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (72 of 87 remaining) [2022-04-18 16:37:05,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (71 of 87 remaining) [2022-04-18 16:37:05,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (70 of 87 remaining) [2022-04-18 16:37:05,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (69 of 87 remaining) [2022-04-18 16:37:05,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (68 of 87 remaining) [2022-04-18 16:37:05,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (67 of 87 remaining) [2022-04-18 16:37:05,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (66 of 87 remaining) [2022-04-18 16:37:05,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (65 of 87 remaining) [2022-04-18 16:37:05,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (64 of 87 remaining) [2022-04-18 16:37:05,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (63 of 87 remaining) [2022-04-18 16:37:05,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (62 of 87 remaining) [2022-04-18 16:37:05,296 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (61 of 87 remaining) [2022-04-18 16:37:05,296 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (60 of 87 remaining) [2022-04-18 16:37:05,296 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (59 of 87 remaining) [2022-04-18 16:37:05,296 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (58 of 87 remaining) [2022-04-18 16:37:05,296 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (57 of 87 remaining) [2022-04-18 16:37:05,296 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (56 of 87 remaining) [2022-04-18 16:37:05,297 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (55 of 87 remaining) [2022-04-18 16:37:05,297 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (54 of 87 remaining) [2022-04-18 16:37:05,297 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (53 of 87 remaining) [2022-04-18 16:37:05,297 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (52 of 87 remaining) [2022-04-18 16:37:05,297 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (51 of 87 remaining) [2022-04-18 16:37:05,297 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (50 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (45 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 87 remaining) [2022-04-18 16:37:05,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 87 remaining) [2022-04-18 16:37:05,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 87 remaining) [2022-04-18 16:37:05,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 87 remaining) [2022-04-18 16:37:05,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 87 remaining) [2022-04-18 16:37:05,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 87 remaining) [2022-04-18 16:37:05,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 87 remaining) [2022-04-18 16:37:05,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 87 remaining) [2022-04-18 16:37:05,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (36 of 87 remaining) [2022-04-18 16:37:05,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (35 of 87 remaining) [2022-04-18 16:37:05,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 87 remaining) [2022-04-18 16:37:05,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (33 of 87 remaining) [2022-04-18 16:37:05,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (32 of 87 remaining) [2022-04-18 16:37:05,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (31 of 87 remaining) [2022-04-18 16:37:05,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (30 of 87 remaining) [2022-04-18 16:37:05,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (29 of 87 remaining) [2022-04-18 16:37:05,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (28 of 87 remaining) [2022-04-18 16:37:05,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (27 of 87 remaining) [2022-04-18 16:37:05,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (26 of 87 remaining) [2022-04-18 16:37:05,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (25 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (24 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (23 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (22 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (21 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (20 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (19 of 87 remaining) [2022-04-18 16:37:05,302 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (18 of 87 remaining) [2022-04-18 16:37:05,303 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (17 of 87 remaining) [2022-04-18 16:37:05,303 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (16 of 87 remaining) [2022-04-18 16:37:05,303 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (15 of 87 remaining) [2022-04-18 16:37:05,303 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (14 of 87 remaining) [2022-04-18 16:37:05,303 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (13 of 87 remaining) [2022-04-18 16:37:05,303 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (12 of 87 remaining) [2022-04-18 16:37:05,304 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (11 of 87 remaining) [2022-04-18 16:37:05,304 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 87 remaining) [2022-04-18 16:37:05,304 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (9 of 87 remaining) [2022-04-18 16:37:05,304 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (8 of 87 remaining) [2022-04-18 16:37:05,304 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (7 of 87 remaining) [2022-04-18 16:37:05,304 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (6 of 87 remaining) [2022-04-18 16:37:05,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (5 of 87 remaining) [2022-04-18 16:37:05,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (4 of 87 remaining) [2022-04-18 16:37:05,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (3 of 87 remaining) [2022-04-18 16:37:05,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (2 of 87 remaining) [2022-04-18 16:37:05,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (1 of 87 remaining) [2022-04-18 16:37:05,305 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (0 of 87 remaining) [2022-04-18 16:37:05,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:37:05,309 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] [2022-04-18 16:37:05,313 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:37:05,313 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:37:05,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:37:05 BasicIcfg [2022-04-18 16:37:05,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:37:05,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:37:05,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:37:05,317 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:37:05,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:46" (3/4) ... [2022-04-18 16:37:05,319 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:37:05,324 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:37:05,325 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:37:05,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-04-18 16:37:05,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:37:05,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:37:05,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:37:05,362 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:37:05,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:37:05,363 INFO L158 Benchmark]: Toolchain (without parser) took 20198.30ms. Allocated memory was 88.1MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 64.6MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 998.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,363 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:37:05,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.45ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 61.7MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.57ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,364 INFO L158 Benchmark]: Boogie Preprocessor took 38.22ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 56.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,365 INFO L158 Benchmark]: RCFGBuilder took 694.56ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 56.1MB in the beginning and 71.0MB in the end (delta: -14.9MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,365 INFO L158 Benchmark]: TraceAbstraction took 19103.38ms. Allocated memory was 107.0MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 70.5MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 981.3MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,365 INFO L158 Benchmark]: Witness Printer took 45.73ms. Allocated memory is still 7.1GB. Free memory was 6.1GB in the beginning and 6.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:37:05,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.45ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 61.7MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.57ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.22ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 56.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.56ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 56.1MB in the beginning and 71.0MB in the end (delta: -14.9MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19103.38ms. Allocated memory was 107.0MB in the beginning and 7.1GB in the end (delta: 7.0GB). Free memory was 70.5MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 981.3MB. Max. memory is 16.1GB. * Witness Printer took 45.73ms. Allocated memory is still 7.1GB. Free memory was 6.1GB in the beginning and 6.1GB in the end (delta: 4.2MB). 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: 60]: 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: 60]: 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: 61]: 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: 61]: 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: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: 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: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: 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: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: 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, 622 locations, 87 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.0s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 573 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 386 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1863 IncrementalHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 386 mSolverCounterUnsat, 531 mSDtfsCounter, 1863 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=790occurred in iteration=0, InterpolantAutomatonStates: 79, 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, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 2068 NumberOfCodeBlocks, 2068 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2048 ConstructedInterpolants, 0 QuantifiedInterpolants, 2919 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:37:05,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE