./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-word-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/weaver/chl-word-trans.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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:30:44,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:30:44,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:30:44,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:30:44,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:30:44,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:30:44,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:30:44,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:30:44,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:30:44,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:30:44,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:30:44,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:30:44,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:30:44,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:30:44,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:30:44,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:30:44,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:30:44,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:30:44,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:30:44,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:30:44,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:30:44,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:30:44,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:30:44,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:30:44,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:30:44,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:30:44,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:30:44,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:30:44,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:30:44,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:30:44,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:30:44,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:30:44,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:30:44,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:30:44,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:30:44,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:30:44,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:30:44,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:30:44,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:30:44,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:30:44,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:30:44,260 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:30:44,292 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:30:44,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:30:44,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:30:44,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:30:44,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:30:44,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:30:44,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:30:44,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:30:44,295 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:30:44,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:30:44,296 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:30:44,296 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:30:44,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:30:44,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:30:44,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:30:44,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:30:44,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:30:44,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:30:44,297 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:30:44,298 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:30:44,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:30:44,298 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:30:44,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:30:44,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:30:44,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:30:44,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:30:44,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:30:44,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:30:44,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:30:44,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:30:44,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:30:44,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:30:44,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:30:44,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:30:44,301 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:30:44,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:30:44,301 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:30:44,301 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:30:44,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:30:44,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:30:44,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:30:44,623 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:30:44,623 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:30:44,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-word-trans.wvr.c [2023-08-29 03:30:45,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:30:46,127 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:30:46,127 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c [2023-08-29 03:30:46,133 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb75c424a/ca8cc393eaae4b2e83cc73237a6d0120/FLAGf4ad22c60 [2023-08-29 03:30:46,147 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb75c424a/ca8cc393eaae4b2e83cc73237a6d0120 [2023-08-29 03:30:46,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:30:46,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:30:46,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:30:46,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:30:46,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:30:46,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc6cc62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46, skipping insertion in model container [2023-08-29 03:30:46,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:30:46,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:30:46,409 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c[3292,3305] [2023-08-29 03:30:46,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:30:46,429 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:30:46,480 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c[3292,3305] [2023-08-29 03:30:46,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:30:46,509 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:30:46,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46 WrapperNode [2023-08-29 03:30:46,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:30:46,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:30:46,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:30:46,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:30:46,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,588 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 273 [2023-08-29 03:30:46,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:30:46,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:30:46,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:30:46,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:30:46,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:30:46,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:30:46,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:30:46,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:30:46,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (1/1) ... [2023-08-29 03:30:46,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:30:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:30:46,703 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) [2023-08-29 03:30:46,723 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 [2023-08-29 03:30:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:30:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:30:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:30:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:30:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:30:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:30:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:30:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:30:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:30:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:30:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:30:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:30:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:30:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:30:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:30:46,739 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:30:46,872 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:30:46,873 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:30:47,671 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:30:47,685 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:30:47,685 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 03:30:47,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:30:47 BoogieIcfgContainer [2023-08-29 03:30:47,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:30:47,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:30:47,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:30:47,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:30:47,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:30:46" (1/3) ... [2023-08-29 03:30:47,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4e69af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:30:47, skipping insertion in model container [2023-08-29 03:30:47,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:30:46" (2/3) ... [2023-08-29 03:30:47,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4e69af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:30:47, skipping insertion in model container [2023-08-29 03:30:47,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:30:47" (3/3) ... [2023-08-29 03:30:47,704 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2023-08-29 03:30:47,710 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:30:47,717 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:30:47,717 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-08-29 03:30:47,717 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:30:47,884 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 03:30:47,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 624 places, 647 transitions, 1318 flow [2023-08-29 03:30:48,176 INFO L130 PetriNetUnfolder]: 33/644 cut-off events. [2023-08-29 03:30:48,176 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:30:48,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 644 events. 33/644 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1757 event pairs, 0 based on Foata normal form. 0/533 useless extension candidates. Maximal degree in co-relation 472. Up to 3 conditions per place. [2023-08-29 03:30:48,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 624 places, 647 transitions, 1318 flow [2023-08-29 03:30:48,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 602 places, 623 transitions, 1264 flow [2023-08-29 03:30:48,207 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:30:48,221 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 602 places, 623 transitions, 1264 flow [2023-08-29 03:30:48,224 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 602 places, 623 transitions, 1264 flow [2023-08-29 03:30:48,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 602 places, 623 transitions, 1264 flow [2023-08-29 03:30:48,352 INFO L130 PetriNetUnfolder]: 31/623 cut-off events. [2023-08-29 03:30:48,352 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:30:48,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 623 events. 31/623 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1738 event pairs, 0 based on Foata normal form. 0/515 useless extension candidates. Maximal degree in co-relation 472. Up to 3 conditions per place. [2023-08-29 03:30:48,392 INFO L119 LiptonReduction]: Number of co-enabled transitions 89910 [2023-08-29 03:30:59,336 INFO L134 LiptonReduction]: Checked pairs total: 735594 [2023-08-29 03:30:59,336 INFO L136 LiptonReduction]: Total number of compositions: 493 [2023-08-29 03:30:59,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:30:59,353 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f786f94, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:30:59,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2023-08-29 03:30:59,355 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:30:59,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:30:59,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:30:59,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:30:59,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:30:59,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:30:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2023-08-29 03:30:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:30:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455739386] [2023-08-29 03:30:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:30:59,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:30:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:30:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:30:59,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:30:59,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455739386] [2023-08-29 03:30:59,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455739386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:30:59,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:30:59,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:30:59,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592028569] [2023-08-29 03:30:59,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:30:59,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:30:59,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:30:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:30:59,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:30:59,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1140 [2023-08-29 03:30:59,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 266 transitions, 550 flow. Second operand has 2 states, 2 states have (on average 627.5) internal successors, (1255), 2 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:30:59,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:30:59,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1140 [2023-08-29 03:30:59,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:04,830 INFO L130 PetriNetUnfolder]: 20226/59871 cut-off events. [2023-08-29 03:31:04,830 INFO L131 PetriNetUnfolder]: For 814/814 co-relation queries the response was YES. [2023-08-29 03:31:05,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86918 conditions, 59871 events. 20226/59871 cut-off events. For 814/814 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 779244 event pairs, 13803 based on Foata normal form. 4796/51456 useless extension candidates. Maximal degree in co-relation 81481. Up to 26452 conditions per place. [2023-08-29 03:31:05,374 INFO L137 encePairwiseOnDemand]: 1110/1140 looper letters, 71 selfloop transitions, 0 changer transitions 1/236 dead transitions. [2023-08-29 03:31:05,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 236 transitions, 634 flow [2023-08-29 03:31:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:31:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:31:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1356 transitions. [2023-08-29 03:31:05,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5947368421052631 [2023-08-29 03:31:05,396 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1356 transitions. [2023-08-29 03:31:05,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1356 transitions. [2023-08-29 03:31:05,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:05,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1356 transitions. [2023-08-29 03:31:05,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 678.0) internal successors, (1356), 2 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:05,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1140.0) internal successors, (3420), 3 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:05,421 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1140.0) internal successors, (3420), 3 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:05,422 INFO L175 Difference]: Start difference. First operand has 255 places, 266 transitions, 550 flow. Second operand 2 states and 1356 transitions. [2023-08-29 03:31:05,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 236 transitions, 634 flow [2023-08-29 03:31:05,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 236 transitions, 622 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 03:31:05,443 INFO L231 Difference]: Finished difference. Result has 223 places, 235 transitions, 475 flow [2023-08-29 03:31:05,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=475, PETRI_PLACES=223, PETRI_TRANSITIONS=235} [2023-08-29 03:31:05,451 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -32 predicate places. [2023-08-29 03:31:05,452 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 235 transitions, 475 flow [2023-08-29 03:31:05,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 627.5) internal successors, (1255), 2 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:05,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:05,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:05,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:31:05,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:05,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:05,464 INFO L85 PathProgramCache]: Analyzing trace with hash 710166074, now seen corresponding path program 1 times [2023-08-29 03:31:05,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:05,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909367845] [2023-08-29 03:31:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:05,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:05,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:05,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909367845] [2023-08-29 03:31:05,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909367845] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:05,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:05,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028044119] [2023-08-29 03:31:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:05,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:05,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:05,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:05,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:05,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-29 03:31:05,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 235 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:05,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:05,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-29 03:31:05,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:09,948 INFO L130 PetriNetUnfolder]: 25416/72228 cut-off events. [2023-08-29 03:31:09,948 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-08-29 03:31:10,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105806 conditions, 72228 events. 25416/72228 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 1675. Compared 938239 event pairs, 12814 based on Foata normal form. 0/57480 useless extension candidates. Maximal degree in co-relation 105803. Up to 33247 conditions per place. [2023-08-29 03:31:10,436 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 97 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2023-08-29 03:31:10,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 255 transitions, 715 flow [2023-08-29 03:31:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:10,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1945 transitions. [2023-08-29 03:31:10,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5687134502923976 [2023-08-29 03:31:10,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1945 transitions. [2023-08-29 03:31:10,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1945 transitions. [2023-08-29 03:31:10,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:10,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1945 transitions. [2023-08-29 03:31:10,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:10,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:10,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:10,456 INFO L175 Difference]: Start difference. First operand has 223 places, 235 transitions, 475 flow. Second operand 3 states and 1945 transitions. [2023-08-29 03:31:10,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 255 transitions, 715 flow [2023-08-29 03:31:10,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 255 transitions, 715 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:31:10,465 INFO L231 Difference]: Finished difference. Result has 221 places, 233 transitions, 481 flow [2023-08-29 03:31:10,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=221, PETRI_TRANSITIONS=233} [2023-08-29 03:31:10,467 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -34 predicate places. [2023-08-29 03:31:10,467 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 233 transitions, 481 flow [2023-08-29 03:31:10,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:10,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:10,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:10,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:31:10,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:10,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash -425558663, now seen corresponding path program 1 times [2023-08-29 03:31:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:10,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825966410] [2023-08-29 03:31:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:10,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:10,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825966410] [2023-08-29 03:31:10,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825966410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:10,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:10,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:10,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301398063] [2023-08-29 03:31:10,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:10,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:10,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:10,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:10,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:10,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-29 03:31:10,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 233 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:10,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:10,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-29 03:31:10,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:15,455 INFO L130 PetriNetUnfolder]: 29268/80878 cut-off events. [2023-08-29 03:31:15,456 INFO L131 PetriNetUnfolder]: For 1303/1303 co-relation queries the response was YES. [2023-08-29 03:31:15,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120897 conditions, 80878 events. 29268/80878 cut-off events. For 1303/1303 co-relation queries the response was YES. Maximal size of possible extension queue 1842. Compared 1054559 event pairs, 14649 based on Foata normal form. 0/64662 useless extension candidates. Maximal degree in co-relation 120893. Up to 38388 conditions per place. [2023-08-29 03:31:16,005 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 107 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2023-08-29 03:31:16,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 259 transitions, 763 flow [2023-08-29 03:31:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:16,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1951 transitions. [2023-08-29 03:31:16,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5704678362573099 [2023-08-29 03:31:16,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1951 transitions. [2023-08-29 03:31:16,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1951 transitions. [2023-08-29 03:31:16,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:16,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1951 transitions. [2023-08-29 03:31:16,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:16,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:16,024 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:16,024 INFO L175 Difference]: Start difference. First operand has 221 places, 233 transitions, 481 flow. Second operand 3 states and 1951 transitions. [2023-08-29 03:31:16,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 259 transitions, 763 flow [2023-08-29 03:31:16,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 259 transitions, 763 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:31:16,029 INFO L231 Difference]: Finished difference. Result has 220 places, 231 transitions, 487 flow [2023-08-29 03:31:16,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=220, PETRI_TRANSITIONS=231} [2023-08-29 03:31:16,030 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -35 predicate places. [2023-08-29 03:31:16,030 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 231 transitions, 487 flow [2023-08-29 03:31:16,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:16,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:16,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:16,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:31:16,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:16,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:16,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1062616450, now seen corresponding path program 1 times [2023-08-29 03:31:16,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:16,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244642800] [2023-08-29 03:31:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:16,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:16,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:16,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244642800] [2023-08-29 03:31:16,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244642800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:16,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:16,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516447344] [2023-08-29 03:31:16,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:16,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-29 03:31:16,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 231 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:16,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:16,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-29 03:31:16,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:20,916 INFO L130 PetriNetUnfolder]: 26375/72156 cut-off events. [2023-08-29 03:31:20,916 INFO L131 PetriNetUnfolder]: For 1781/1783 co-relation queries the response was YES. [2023-08-29 03:31:21,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108903 conditions, 72156 events. 26375/72156 cut-off events. For 1781/1783 co-relation queries the response was YES. Maximal size of possible extension queue 1731. Compared 922061 event pairs, 18019 based on Foata normal form. 0/57393 useless extension candidates. Maximal degree in co-relation 108898. Up to 34778 conditions per place. [2023-08-29 03:31:21,405 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 77 selfloop transitions, 1 changer transitions 0/227 dead transitions. [2023-08-29 03:31:21,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 227 transitions, 635 flow [2023-08-29 03:31:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1912 transitions. [2023-08-29 03:31:21,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5590643274853802 [2023-08-29 03:31:21,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1912 transitions. [2023-08-29 03:31:21,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1912 transitions. [2023-08-29 03:31:21,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:21,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1912 transitions. [2023-08-29 03:31:21,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:21,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:21,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:21,428 INFO L175 Difference]: Start difference. First operand has 220 places, 231 transitions, 487 flow. Second operand 3 states and 1912 transitions. [2023-08-29 03:31:21,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 227 transitions, 635 flow [2023-08-29 03:31:21,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 227 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:31:21,432 INFO L231 Difference]: Finished difference. Result has 218 places, 227 transitions, 481 flow [2023-08-29 03:31:21,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=218, PETRI_TRANSITIONS=227} [2023-08-29 03:31:21,434 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -37 predicate places. [2023-08-29 03:31:21,435 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 227 transitions, 481 flow [2023-08-29 03:31:21,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.0) internal successors, (1842), 3 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:21,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:21,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:21,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:31:21,436 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:21,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:21,437 INFO L85 PathProgramCache]: Analyzing trace with hash -939931685, now seen corresponding path program 1 times [2023-08-29 03:31:21,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:21,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220111269] [2023-08-29 03:31:21,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:21,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:21,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:21,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220111269] [2023-08-29 03:31:21,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220111269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:21,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:21,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:21,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643835494] [2023-08-29 03:31:21,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:21,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:21,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:21,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:21,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-29 03:31:21,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 227 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:21,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:21,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-29 03:31:21,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:25,616 INFO L130 PetriNetUnfolder]: 27980/67440 cut-off events. [2023-08-29 03:31:25,617 INFO L131 PetriNetUnfolder]: For 1918/1920 co-relation queries the response was YES. [2023-08-29 03:31:25,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106472 conditions, 67440 events. 27980/67440 cut-off events. For 1918/1920 co-relation queries the response was YES. Maximal size of possible extension queue 1530. Compared 789838 event pairs, 6411 based on Foata normal form. 0/53412 useless extension candidates. Maximal degree in co-relation 106466. Up to 36443 conditions per place. [2023-08-29 03:31:26,016 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 106 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2023-08-29 03:31:26,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 252 transitions, 764 flow [2023-08-29 03:31:26,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1948 transitions. [2023-08-29 03:31:26,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695906432748538 [2023-08-29 03:31:26,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1948 transitions. [2023-08-29 03:31:26,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1948 transitions. [2023-08-29 03:31:26,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:26,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1948 transitions. [2023-08-29 03:31:26,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:26,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:26,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:26,034 INFO L175 Difference]: Start difference. First operand has 218 places, 227 transitions, 481 flow. Second operand 3 states and 1948 transitions. [2023-08-29 03:31:26,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 252 transitions, 764 flow [2023-08-29 03:31:26,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 252 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:31:26,040 INFO L231 Difference]: Finished difference. Result has 216 places, 225 transitions, 486 flow [2023-08-29 03:31:26,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=216, PETRI_TRANSITIONS=225} [2023-08-29 03:31:26,042 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -39 predicate places. [2023-08-29 03:31:26,043 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 225 transitions, 486 flow [2023-08-29 03:31:26,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:26,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:26,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:26,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:31:26,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:26,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:26,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1028477649, now seen corresponding path program 1 times [2023-08-29 03:31:26,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:26,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589209738] [2023-08-29 03:31:26,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:26,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:26,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:26,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589209738] [2023-08-29 03:31:26,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589209738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:26,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:26,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:31:26,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229281834] [2023-08-29 03:31:26,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:26,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:26,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:26,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:26,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:26,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 1140 [2023-08-29 03:31:26,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 225 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 622.0) internal successors, (1866), 3 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:26,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:26,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 1140 [2023-08-29 03:31:26,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:30,483 INFO L130 PetriNetUnfolder]: 23346/66167 cut-off events. [2023-08-29 03:31:30,483 INFO L131 PetriNetUnfolder]: For 1601/1603 co-relation queries the response was YES. [2023-08-29 03:31:30,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99010 conditions, 66167 events. 23346/66167 cut-off events. For 1601/1603 co-relation queries the response was YES. Maximal size of possible extension queue 1514. Compared 845427 event pairs, 14521 based on Foata normal form. 0/52521 useless extension candidates. Maximal degree in co-relation 99004. Up to 28995 conditions per place. [2023-08-29 03:31:30,884 INFO L137 encePairwiseOnDemand]: 1137/1140 looper letters, 115 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2023-08-29 03:31:30,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 268 transitions, 812 flow [2023-08-29 03:31:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:30,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2023-08-29 03:31:30,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766081871345029 [2023-08-29 03:31:30,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1972 transitions. [2023-08-29 03:31:30,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1972 transitions. [2023-08-29 03:31:30,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:30,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1972 transitions. [2023-08-29 03:31:30,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:30,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:30,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:30,905 INFO L175 Difference]: Start difference. First operand has 216 places, 225 transitions, 486 flow. Second operand 3 states and 1972 transitions. [2023-08-29 03:31:30,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 268 transitions, 812 flow [2023-08-29 03:31:30,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 268 transitions, 812 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:31:30,912 INFO L231 Difference]: Finished difference. Result has 219 places, 226 transitions, 498 flow [2023-08-29 03:31:30,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=219, PETRI_TRANSITIONS=226} [2023-08-29 03:31:30,913 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -36 predicate places. [2023-08-29 03:31:30,913 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 226 transitions, 498 flow [2023-08-29 03:31:30,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.0) internal successors, (1866), 3 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:30,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:30,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:30,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:31:30,914 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:30,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:30,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1028297528, now seen corresponding path program 1 times [2023-08-29 03:31:30,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:30,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7775041] [2023-08-29 03:31:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:30,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:30,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:30,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7775041] [2023-08-29 03:31:30,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7775041] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:30,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:30,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093226704] [2023-08-29 03:31:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:30,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:30,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:30,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:30,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-29 03:31:30,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 226 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:30,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:30,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-29 03:31:30,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:36,242 INFO L130 PetriNetUnfolder]: 28024/78099 cut-off events. [2023-08-29 03:31:36,243 INFO L131 PetriNetUnfolder]: For 4456/4458 co-relation queries the response was YES. [2023-08-29 03:31:36,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120166 conditions, 78099 events. 28024/78099 cut-off events. For 4456/4458 co-relation queries the response was YES. Maximal size of possible extension queue 1800. Compared 1015637 event pairs, 19225 based on Foata normal form. 0/63504 useless extension candidates. Maximal degree in co-relation 120158. Up to 37152 conditions per place. [2023-08-29 03:31:36,692 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 77 selfloop transitions, 1 changer transitions 0/222 dead transitions. [2023-08-29 03:31:36,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 222 transitions, 646 flow [2023-08-29 03:31:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2023-08-29 03:31:36,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587719298245614 [2023-08-29 03:31:36,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2023-08-29 03:31:36,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2023-08-29 03:31:36,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:36,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2023-08-29 03:31:36,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 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) [2023-08-29 03:31:36,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:36,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:36,704 INFO L175 Difference]: Start difference. First operand has 219 places, 226 transitions, 498 flow. Second operand 3 states and 1911 transitions. [2023-08-29 03:31:36,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 222 transitions, 646 flow [2023-08-29 03:31:36,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 222 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:31:36,714 INFO L231 Difference]: Finished difference. Result has 216 places, 222 transitions, 490 flow [2023-08-29 03:31:36,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=216, PETRI_TRANSITIONS=222} [2023-08-29 03:31:36,715 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -39 predicate places. [2023-08-29 03:31:36,715 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 222 transitions, 490 flow [2023-08-29 03:31:36,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.3333333333334) internal successors, (1843), 3 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:36,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:36,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:36,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:31:36,716 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:36,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:36,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1291265988, now seen corresponding path program 1 times [2023-08-29 03:31:36,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:36,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754892053] [2023-08-29 03:31:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:36,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:37,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754892053] [2023-08-29 03:31:37,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754892053] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:37,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:37,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:31:37,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210047194] [2023-08-29 03:31:37,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:37,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:31:37,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:31:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:31:37,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 606 out of 1140 [2023-08-29 03:31:37,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 222 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 608.3333333333334) internal successors, (3650), 6 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:37,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:37,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 606 of 1140 [2023-08-29 03:31:37,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:45,394 INFO L130 PetriNetUnfolder]: 72301/116492 cut-off events. [2023-08-29 03:31:45,394 INFO L131 PetriNetUnfolder]: For 8027/8029 co-relation queries the response was YES. [2023-08-29 03:31:45,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219766 conditions, 116492 events. 72301/116492 cut-off events. For 8027/8029 co-relation queries the response was YES. Maximal size of possible extension queue 2832. Compared 1041562 event pairs, 6088 based on Foata normal form. 0/91987 useless extension candidates. Maximal degree in co-relation 219758. Up to 32728 conditions per place. [2023-08-29 03:31:46,144 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 307 selfloop transitions, 4 changer transitions 0/453 dead transitions. [2023-08-29 03:31:46,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 453 transitions, 1666 flow [2023-08-29 03:31:46,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:31:46,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:31:46,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3928 transitions. [2023-08-29 03:31:46,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5742690058479533 [2023-08-29 03:31:46,149 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3928 transitions. [2023-08-29 03:31:46,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3928 transitions. [2023-08-29 03:31:46,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:46,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3928 transitions. [2023-08-29 03:31:46,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 654.6666666666666) internal successors, (3928), 6 states have internal predecessors, (3928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:46,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:46,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1140.0) internal successors, (7980), 7 states have internal predecessors, (7980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:46,163 INFO L175 Difference]: Start difference. First operand has 216 places, 222 transitions, 490 flow. Second operand 6 states and 3928 transitions. [2023-08-29 03:31:46,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 453 transitions, 1666 flow [2023-08-29 03:31:46,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 453 transitions, 1665 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:31:46,181 INFO L231 Difference]: Finished difference. Result has 219 places, 221 transitions, 495 flow [2023-08-29 03:31:46,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=495, PETRI_PLACES=219, PETRI_TRANSITIONS=221} [2023-08-29 03:31:46,182 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -36 predicate places. [2023-08-29 03:31:46,183 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 221 transitions, 495 flow [2023-08-29 03:31:46,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 608.3333333333334) internal successors, (3650), 6 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:46,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:46,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:46,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:31:46,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:46,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 351962219, now seen corresponding path program 1 times [2023-08-29 03:31:46,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:46,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128852728] [2023-08-29 03:31:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:46,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128852728] [2023-08-29 03:31:46,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128852728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:46,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:46,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118652336] [2023-08-29 03:31:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:46,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:46,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:46,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-29 03:31:46,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 221 transitions, 495 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:46,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:46,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-29 03:31:46,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:51,907 INFO L130 PetriNetUnfolder]: 37419/87720 cut-off events. [2023-08-29 03:31:51,907 INFO L131 PetriNetUnfolder]: For 9796/9798 co-relation queries the response was YES. [2023-08-29 03:31:52,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148765 conditions, 87720 events. 37419/87720 cut-off events. For 9796/9798 co-relation queries the response was YES. Maximal size of possible extension queue 2345. Compared 1050254 event pairs, 7938 based on Foata normal form. 0/71772 useless extension candidates. Maximal degree in co-relation 148757. Up to 35470 conditions per place. [2023-08-29 03:31:52,483 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 129 selfloop transitions, 2 changer transitions 0/270 dead transitions. [2023-08-29 03:31:52,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 270 transitions, 878 flow [2023-08-29 03:31:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2023-08-29 03:31:52,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5763157894736842 [2023-08-29 03:31:52,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2023-08-29 03:31:52,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2023-08-29 03:31:52,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:52,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2023-08-29 03:31:52,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:52,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:52,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:52,496 INFO L175 Difference]: Start difference. First operand has 219 places, 221 transitions, 495 flow. Second operand 3 states and 1971 transitions. [2023-08-29 03:31:52,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 270 transitions, 878 flow [2023-08-29 03:31:52,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 270 transitions, 869 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:31:52,575 INFO L231 Difference]: Finished difference. Result has 214 places, 219 transitions, 496 flow [2023-08-29 03:31:52,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=214, PETRI_TRANSITIONS=219} [2023-08-29 03:31:52,577 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -41 predicate places. [2023-08-29 03:31:52,577 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 219 transitions, 496 flow [2023-08-29 03:31:52,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:52,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:52,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:52,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 03:31:52,578 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:52,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:52,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1140193568, now seen corresponding path program 1 times [2023-08-29 03:31:52,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:52,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84524708] [2023-08-29 03:31:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:52,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84524708] [2023-08-29 03:31:52,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84524708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:52,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:52,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:31:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53868703] [2023-08-29 03:31:52,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:52,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:52,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:52,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:52,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 1140 [2023-08-29 03:31:52,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 219 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:52,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:52,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 1140 [2023-08-29 03:31:52,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:31:58,791 INFO L130 PetriNetUnfolder]: 35420/91553 cut-off events. [2023-08-29 03:31:58,791 INFO L131 PetriNetUnfolder]: For 7109/7111 co-relation queries the response was YES. [2023-08-29 03:31:59,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146879 conditions, 91553 events. 35420/91553 cut-off events. For 7109/7111 co-relation queries the response was YES. Maximal size of possible extension queue 2208. Compared 1149722 event pairs, 21841 based on Foata normal form. 0/76438 useless extension candidates. Maximal degree in co-relation 146871. Up to 43849 conditions per place. [2023-08-29 03:31:59,425 INFO L137 encePairwiseOnDemand]: 1137/1140 looper letters, 123 selfloop transitions, 2 changer transitions 0/267 dead transitions. [2023-08-29 03:31:59,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 267 transitions, 874 flow [2023-08-29 03:31:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:31:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:31:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2023-08-29 03:31:59,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766081871345029 [2023-08-29 03:31:59,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1972 transitions. [2023-08-29 03:31:59,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1972 transitions. [2023-08-29 03:31:59,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:31:59,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1972 transitions. [2023-08-29 03:31:59,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:59,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:59,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:59,436 INFO L175 Difference]: Start difference. First operand has 214 places, 219 transitions, 496 flow. Second operand 3 states and 1972 transitions. [2023-08-29 03:31:59,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 267 transitions, 874 flow [2023-08-29 03:31:59,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 267 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:31:59,449 INFO L231 Difference]: Finished difference. Result has 217 places, 220 transitions, 508 flow [2023-08-29 03:31:59,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=217, PETRI_TRANSITIONS=220} [2023-08-29 03:31:59,450 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -38 predicate places. [2023-08-29 03:31:59,450 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 220 transitions, 508 flow [2023-08-29 03:31:59,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:59,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:31:59,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:31:59,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:31:59,451 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:31:59,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:31:59,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1139934149, now seen corresponding path program 1 times [2023-08-29 03:31:59,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:31:59,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287970721] [2023-08-29 03:31:59,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:31:59,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:31:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:31:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:31:59,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:31:59,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287970721] [2023-08-29 03:31:59,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287970721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:31:59,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:31:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:31:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637421513] [2023-08-29 03:31:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:31:59,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:31:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:31:59,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:31:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:31:59,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 1140 [2023-08-29 03:31:59,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 220 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:31:59,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:31:59,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 1140 [2023-08-29 03:31:59,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:32:06,638 INFO L130 PetriNetUnfolder]: 42880/104820 cut-off events. [2023-08-29 03:32:06,638 INFO L131 PetriNetUnfolder]: For 12745/12747 co-relation queries the response was YES. [2023-08-29 03:32:07,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176115 conditions, 104820 events. 42880/104820 cut-off events. For 12745/12747 co-relation queries the response was YES. Maximal size of possible extension queue 2501. Compared 1299331 event pairs, 29153 based on Foata normal form. 0/88710 useless extension candidates. Maximal degree in co-relation 176105. Up to 56908 conditions per place. [2023-08-29 03:32:07,616 INFO L137 encePairwiseOnDemand]: 1135/1140 looper letters, 80 selfloop transitions, 1 changer transitions 0/216 dead transitions. [2023-08-29 03:32:07,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 216 transitions, 662 flow [2023-08-29 03:32:07,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:32:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:32:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2023-08-29 03:32:07,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587719298245614 [2023-08-29 03:32:07,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2023-08-29 03:32:07,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2023-08-29 03:32:07,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:32:07,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2023-08-29 03:32:07,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 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) [2023-08-29 03:32:07,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:07,625 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:07,625 INFO L175 Difference]: Start difference. First operand has 217 places, 220 transitions, 508 flow. Second operand 3 states and 1911 transitions. [2023-08-29 03:32:07,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 216 transitions, 662 flow [2023-08-29 03:32:07,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 216 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:32:07,660 INFO L231 Difference]: Finished difference. Result has 214 places, 216 transitions, 500 flow [2023-08-29 03:32:07,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=214, PETRI_TRANSITIONS=216} [2023-08-29 03:32:07,661 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -41 predicate places. [2023-08-29 03:32:07,661 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 216 transitions, 500 flow [2023-08-29 03:32:07,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:07,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:32:07,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:32:07,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:32:07,662 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:32:07,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:32:07,663 INFO L85 PathProgramCache]: Analyzing trace with hash 260434172, now seen corresponding path program 1 times [2023-08-29 03:32:07,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:32:07,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578177363] [2023-08-29 03:32:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:32:07,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:32:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:32:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:32:07,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:32:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578177363] [2023-08-29 03:32:07,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578177363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:32:07,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:32:07,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:32:07,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667987275] [2023-08-29 03:32:07,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:32:07,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:32:07,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:32:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:32:07,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:32:07,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1140 [2023-08-29 03:32:07,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 216 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:07,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:32:07,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1140 [2023-08-29 03:32:07,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:32:17,429 INFO L130 PetriNetUnfolder]: 65252/142322 cut-off events. [2023-08-29 03:32:17,429 INFO L131 PetriNetUnfolder]: For 14935/14937 co-relation queries the response was YES. [2023-08-29 03:32:18,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249339 conditions, 142322 events. 65252/142322 cut-off events. For 14935/14937 co-relation queries the response was YES. Maximal size of possible extension queue 3483. Compared 1700064 event pairs, 16183 based on Foata normal form. 0/123575 useless extension candidates. Maximal degree in co-relation 249329. Up to 57398 conditions per place. [2023-08-29 03:32:18,427 INFO L137 encePairwiseOnDemand]: 1134/1140 looper letters, 144 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2023-08-29 03:32:18,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 274 transitions, 952 flow [2023-08-29 03:32:18,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:32:18,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:32:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1979 transitions. [2023-08-29 03:32:18,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5786549707602339 [2023-08-29 03:32:18,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1979 transitions. [2023-08-29 03:32:18,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1979 transitions. [2023-08-29 03:32:18,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:32:18,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1979 transitions. [2023-08-29 03:32:18,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.6666666666666) internal successors, (1979), 3 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:18,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:18,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1140.0) internal successors, (4560), 4 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:18,436 INFO L175 Difference]: Start difference. First operand has 214 places, 216 transitions, 500 flow. Second operand 3 states and 1979 transitions. [2023-08-29 03:32:18,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 274 transitions, 952 flow [2023-08-29 03:32:18,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 274 transitions, 951 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:32:18,463 INFO L231 Difference]: Finished difference. Result has 212 places, 214 transitions, 507 flow [2023-08-29 03:32:18,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=507, PETRI_PLACES=212, PETRI_TRANSITIONS=214} [2023-08-29 03:32:18,464 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -43 predicate places. [2023-08-29 03:32:18,464 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 214 transitions, 507 flow [2023-08-29 03:32:18,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.6666666666666) internal successors, (1856), 3 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:18,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:32:18,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:32:18,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:32:18,465 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:32:18,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:32:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash 751565457, now seen corresponding path program 1 times [2023-08-29 03:32:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:32:18,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021634906] [2023-08-29 03:32:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:32:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:32:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:32:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:32:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:32:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021634906] [2023-08-29 03:32:18,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021634906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:32:18,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:32:18,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:32:18,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240013099] [2023-08-29 03:32:18,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:32:18,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:32:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:32:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:32:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:32:18,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-29 03:32:18,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 214 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 604.8333333333334) internal successors, (3629), 6 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:18,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:32:18,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-29 03:32:18,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:32:41,661 INFO L130 PetriNetUnfolder]: 132104/281632 cut-off events. [2023-08-29 03:32:41,661 INFO L131 PetriNetUnfolder]: For 40402/40550 co-relation queries the response was YES. [2023-08-29 03:32:43,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506517 conditions, 281632 events. 132104/281632 cut-off events. For 40402/40550 co-relation queries the response was YES. Maximal size of possible extension queue 7289. Compared 3641625 event pairs, 59222 based on Foata normal form. 2124/245250 useless extension candidates. Maximal degree in co-relation 506507. Up to 72574 conditions per place. [2023-08-29 03:32:44,506 INFO L137 encePairwiseOnDemand]: 1129/1140 looper letters, 389 selfloop transitions, 14 changer transitions 0/538 dead transitions. [2023-08-29 03:32:44,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 538 transitions, 2160 flow [2023-08-29 03:32:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 03:32:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 03:32:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 5800 transitions. [2023-08-29 03:32:44,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5653021442495126 [2023-08-29 03:32:44,517 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 5800 transitions. [2023-08-29 03:32:44,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 5800 transitions. [2023-08-29 03:32:44,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:32:44,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 5800 transitions. [2023-08-29 03:32:44,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 644.4444444444445) internal successors, (5800), 9 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:44,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1140.0) internal successors, (11400), 10 states have internal predecessors, (11400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:44,533 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1140.0) internal successors, (11400), 10 states have internal predecessors, (11400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:44,533 INFO L175 Difference]: Start difference. First operand has 212 places, 214 transitions, 507 flow. Second operand 9 states and 5800 transitions. [2023-08-29 03:32:44,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 538 transitions, 2160 flow [2023-08-29 03:32:46,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 538 transitions, 2160 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:32:46,384 INFO L231 Difference]: Finished difference. Result has 225 places, 227 transitions, 611 flow [2023-08-29 03:32:46,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=611, PETRI_PLACES=225, PETRI_TRANSITIONS=227} [2023-08-29 03:32:46,385 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -30 predicate places. [2023-08-29 03:32:46,385 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 227 transitions, 611 flow [2023-08-29 03:32:46,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 604.8333333333334) internal successors, (3629), 6 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:46,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:32:46,386 INFO L208 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] [2023-08-29 03:32:46,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:32:46,386 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:32:46,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:32:46,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1640151071, now seen corresponding path program 1 times [2023-08-29 03:32:46,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:32:46,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070426201] [2023-08-29 03:32:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:32:46,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:32:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:32:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:32:46,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:32:46,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070426201] [2023-08-29 03:32:46,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070426201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:32:46,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:32:46,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 03:32:46,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295116696] [2023-08-29 03:32:46,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:32:46,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:32:46,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:32:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:32:46,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:32:46,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1140 [2023-08-29 03:32:46,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 227 transitions, 611 flow. Second operand has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:32:46,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:32:46,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1140 [2023-08-29 03:32:46,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:33:31,778 INFO L130 PetriNetUnfolder]: 254970/539066 cut-off events. [2023-08-29 03:33:31,778 INFO L131 PetriNetUnfolder]: For 126251/126469 co-relation queries the response was YES. [2023-08-29 03:33:35,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011906 conditions, 539066 events. 254970/539066 cut-off events. For 126251/126469 co-relation queries the response was YES. Maximal size of possible extension queue 13227. Compared 7434619 event pairs, 118894 based on Foata normal form. 1054/466300 useless extension candidates. Maximal degree in co-relation 1011890. Up to 163583 conditions per place. [2023-08-29 03:33:36,997 INFO L137 encePairwiseOnDemand]: 1132/1140 looper letters, 288 selfloop transitions, 22 changer transitions 0/445 dead transitions. [2023-08-29 03:33:36,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 445 transitions, 1848 flow [2023-08-29 03:33:36,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:33:36,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:33:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4487 transitions. [2023-08-29 03:33:37,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5622807017543859 [2023-08-29 03:33:37,003 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4487 transitions. [2023-08-29 03:33:37,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4487 transitions. [2023-08-29 03:33:37,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:33:37,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4487 transitions. [2023-08-29 03:33:37,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 641.0) internal successors, (4487), 7 states have internal predecessors, (4487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:33:37,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:33:37,013 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1140.0) internal successors, (9120), 8 states have internal predecessors, (9120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:33:37,013 INFO L175 Difference]: Start difference. First operand has 225 places, 227 transitions, 611 flow. Second operand 7 states and 4487 transitions. [2023-08-29 03:33:37,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 445 transitions, 1848 flow [2023-08-29 03:33:48,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 445 transitions, 1846 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-29 03:33:48,635 INFO L231 Difference]: Finished difference. Result has 235 places, 240 transitions, 768 flow [2023-08-29 03:33:48,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1140, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=768, PETRI_PLACES=235, PETRI_TRANSITIONS=240} [2023-08-29 03:33:48,636 INFO L281 CegarLoopForPetriNet]: 255 programPoint places, -20 predicate places. [2023-08-29 03:33:48,636 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 240 transitions, 768 flow [2023-08-29 03:33:48,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:33:48,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:33:48,637 INFO L208 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] [2023-08-29 03:33:48,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:33:48,637 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-08-29 03:33:48,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:33:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1403629322, now seen corresponding path program 1 times [2023-08-29 03:33:48,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:33:48,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166711509] [2023-08-29 03:33:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:33:48,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:33:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:33:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:33:48,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:33:48,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166711509] [2023-08-29 03:33:48,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166711509] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:33:48,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:33:48,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:33:48,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496045700] [2023-08-29 03:33:48,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:33:48,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:33:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:33:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:33:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:33:48,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 1140 [2023-08-29 03:33:48,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 240 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 623.6666666666666) internal successors, (1871), 3 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:33:48,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:33:48,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 1140 [2023-08-29 03:33:48,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand