./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs-b.i --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/pthread-ext/48_ticket_lock_low_contention_vs-b.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 --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 [2023-08-28 18:07:23,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 18:07:23,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 18:07:23,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 18:07:23,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 18:07:23,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 18:07:23,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 18:07:23,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 18:07:23,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 18:07:23,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 18:07:23,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 18:07:23,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 18:07:23,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 18:07:23,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 18:07:23,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 18:07:23,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 18:07:23,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 18:07:23,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 18:07:23,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 18:07:23,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 18:07:23,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 18:07:23,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 18:07:23,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 18:07:23,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 18:07:23,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 18:07:23,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 18:07:23,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 18:07:23,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 18:07:23,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 18:07:23,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 18:07:23,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 18:07:23,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 18:07:23,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 18:07:23,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 18:07:23,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 18:07:23,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 18:07:23,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 18:07:23,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 18:07:23,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 18:07:23,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 18:07:23,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 18:07:23,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 18:07:23,152 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 18:07:23,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 18:07:23,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 18:07:23,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 18:07:23,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 18:07:23,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 18:07:23,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 18:07:23,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 18:07:23,155 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 18:07:23,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 18:07:23,156 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 18:07:23,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 18:07:23,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 18:07:23,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 18:07:23,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 18:07:23,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 18:07:23,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 18:07:23,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 18:07:23,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 18:07:23,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 18:07:23,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 18:07:23,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 18:07:23,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 18:07:23,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 18:07:23,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 18:07:23,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 18:07:23,159 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 18:07:23,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 18:07:23,159 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 18:07:23,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 18:07:23,160 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 18:07:23,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 18:07:23,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 18:07:23,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 18:07:23,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 18:07:23,419 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 18:07:23,419 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 18:07:23,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2023-08-28 18:07:24,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 18:07:24,542 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 18:07:24,543 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2023-08-28 18:07:24,551 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b38395f2/2f391006fc9a45b098ffe9597c998334/FLAGfca0342c1 [2023-08-28 18:07:24,564 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b38395f2/2f391006fc9a45b098ffe9597c998334 [2023-08-28 18:07:24,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 18:07:24,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 18:07:24,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 18:07:24,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 18:07:24,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 18:07:24,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:24,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a994c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24, skipping insertion in model container [2023-08-28 18:07:24,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:24,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 18:07:24,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 18:07:24,851 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs-b.i[30315,30328] [2023-08-28 18:07:24,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 18:07:24,868 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 18:07:24,911 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs-b.i[30315,30328] [2023-08-28 18:07:24,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 18:07:24,963 INFO L208 MainTranslator]: Completed translation [2023-08-28 18:07:24,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24 WrapperNode [2023-08-28 18:07:24,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 18:07:24,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 18:07:24,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 18:07:24,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 18:07:24,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:24,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,025 INFO L138 Inliner]: procedures = 169, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 181 [2023-08-28 18:07:25,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 18:07:25,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 18:07:25,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 18:07:25,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 18:07:25,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,061 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 18:07:25,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 18:07:25,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 18:07:25,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 18:07:25,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (1/1) ... [2023-08-28 18:07:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 18:07:25,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 18:07:25,098 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) [2023-08-28 18:07:25,114 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 [2023-08-28 18:07:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 18:07:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 18:07:25,125 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 18:07:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 18:07:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 18:07:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 18:07:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 18:07:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 18:07:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 18:07:25,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 18:07:25,127 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 18:07:25,236 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 18:07:25,237 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 18:07:25,492 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 18:07:25,666 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 18:07:25,667 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-28 18:07:25,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:25 BoogieIcfgContainer [2023-08-28 18:07:25,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 18:07:25,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 18:07:25,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 18:07:25,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 18:07:25,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 06:07:24" (1/3) ... [2023-08-28 18:07:25,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab6e88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:07:25, skipping insertion in model container [2023-08-28 18:07:25,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:24" (2/3) ... [2023-08-28 18:07:25,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab6e88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:07:25, skipping insertion in model container [2023-08-28 18:07:25,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:25" (3/3) ... [2023-08-28 18:07:25,680 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-b.i [2023-08-28 18:07:25,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 18:07:25,691 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 18:07:25,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-28 18:07:25,691 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 18:07:25,733 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 18:07:25,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 150 transitions, 305 flow [2023-08-28 18:07:25,822 INFO L130 PetriNetUnfolder]: 11/226 cut-off events. [2023-08-28 18:07:25,825 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:25,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 226 events. 11/226 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 719 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2023-08-28 18:07:25,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 150 transitions, 305 flow [2023-08-28 18:07:25,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 150 transitions, 305 flow [2023-08-28 18:07:25,844 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:25,852 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 150 transitions, 305 flow [2023-08-28 18:07:25,853 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 150 transitions, 305 flow [2023-08-28 18:07:25,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 150 transitions, 305 flow [2023-08-28 18:07:25,883 INFO L130 PetriNetUnfolder]: 11/226 cut-off events. [2023-08-28 18:07:25,883 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:25,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 226 events. 11/226 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 719 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2023-08-28 18:07:25,888 INFO L119 LiptonReduction]: Number of co-enabled transitions 9006 [2023-08-28 18:07:26,999 INFO L134 LiptonReduction]: Checked pairs total: 38196 [2023-08-28 18:07:27,000 INFO L136 LiptonReduction]: Total number of compositions: 71 [2023-08-28 18:07:27,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 18:07:27,014 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;@d81e914, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:27,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-28 18:07:27,017 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-28 18:07:27,017 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:27,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:27,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-28 18:07:27,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:27,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:27,021 INFO L85 PathProgramCache]: Analyzing trace with hash 632387, now seen corresponding path program 1 times [2023-08-28 18:07:27,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:27,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458065084] [2023-08-28 18:07:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:27,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:27,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458065084] [2023-08-28 18:07:27,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458065084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:27,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:27,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 18:07:27,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391529000] [2023-08-28 18:07:27,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:27,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 18:07:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:27,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 18:07:27,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 18:07:27,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 221 [2023-08-28 18:07:27,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 92 transitions, 189 flow. Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:27,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:27,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 221 [2023-08-28 18:07:27,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:27,322 INFO L130 PetriNetUnfolder]: 156/685 cut-off events. [2023-08-28 18:07:27,322 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:27,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 685 events. 156/685 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3832 event pairs, 130 based on Foata normal form. 26/570 useless extension candidates. Maximal degree in co-relation 952. Up to 324 conditions per place. [2023-08-28 18:07:27,359 INFO L137 encePairwiseOnDemand]: 207/221 looper letters, 27 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2023-08-28 18:07:27,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 76 transitions, 211 flow [2023-08-28 18:07:27,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 18:07:27,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 18:07:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 301 transitions. [2023-08-28 18:07:27,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6809954751131222 [2023-08-28 18:07:27,399 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 301 transitions. [2023-08-28 18:07:27,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 301 transitions. [2023-08-28 18:07:27,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:27,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 301 transitions. [2023-08-28 18:07:27,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:27,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:27,428 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:27,429 INFO L175 Difference]: Start difference. First operand has 89 places, 92 transitions, 189 flow. Second operand 2 states and 301 transitions. [2023-08-28 18:07:27,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 76 transitions, 211 flow [2023-08-28 18:07:27,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 76 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:27,433 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 157 flow [2023-08-28 18:07:27,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=157, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2023-08-28 18:07:27,437 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, -11 predicate places. [2023-08-28 18:07:27,437 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 157 flow [2023-08-28 18:07:27,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:27,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:27,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:27,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 18:07:27,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:27,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:27,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1702945887, now seen corresponding path program 1 times [2023-08-28 18:07:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069603405] [2023-08-28 18:07:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:27,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:27,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:27,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069603405] [2023-08-28 18:07:27,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069603405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:27,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:07:27,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109317831] [2023-08-28 18:07:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:07:27,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:27,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:07:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:07:27,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 221 [2023-08-28 18:07:27,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:27,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:27,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 221 [2023-08-28 18:07:27,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:28,033 INFO L130 PetriNetUnfolder]: 381/1426 cut-off events. [2023-08-28 18:07:28,033 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:28,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 1426 events. 381/1426 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 10079 event pairs, 68 based on Foata normal form. 0/1170 useless extension candidates. Maximal degree in co-relation 2203. Up to 401 conditions per place. [2023-08-28 18:07:28,040 INFO L137 encePairwiseOnDemand]: 213/221 looper letters, 84 selfloop transitions, 10 changer transitions 0/137 dead transitions. [2023-08-28 18:07:28,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 137 transitions, 467 flow [2023-08-28 18:07:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:07:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:07:28,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 821 transitions. [2023-08-28 18:07:28,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6191553544494721 [2023-08-28 18:07:28,045 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 821 transitions. [2023-08-28 18:07:28,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 821 transitions. [2023-08-28 18:07:28,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:28,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 821 transitions. [2023-08-28 18:07:28,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,051 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 157 flow. Second operand 6 states and 821 transitions. [2023-08-28 18:07:28,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 137 transitions, 467 flow [2023-08-28 18:07:28,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 137 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:28,054 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 233 flow [2023-08-28 18:07:28,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2023-08-28 18:07:28,055 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, -1 predicate places. [2023-08-28 18:07:28,055 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 233 flow [2023-08-28 18:07:28,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.33333333333333) internal successors, (734), 6 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:28,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:28,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 18:07:28,056 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:28,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:28,058 INFO L85 PathProgramCache]: Analyzing trace with hash -980928888, now seen corresponding path program 1 times [2023-08-28 18:07:28,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:28,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028106466] [2023-08-28 18:07:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:28,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:28,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:28,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028106466] [2023-08-28 18:07:28,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028106466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:28,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:28,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:07:28,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420797421] [2023-08-28 18:07:28,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:28,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:07:28,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:28,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:07:28,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:07:28,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 221 [2023-08-28 18:07:28,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:28,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 221 [2023-08-28 18:07:28,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:28,622 INFO L130 PetriNetUnfolder]: 610/2221 cut-off events. [2023-08-28 18:07:28,622 INFO L131 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2023-08-28 18:07:28,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3832 conditions, 2221 events. 610/2221 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 18214 event pairs, 58 based on Foata normal form. 0/1870 useless extension candidates. Maximal degree in co-relation 3823. Up to 675 conditions per place. [2023-08-28 18:07:28,632 INFO L137 encePairwiseOnDemand]: 213/221 looper letters, 105 selfloop transitions, 10 changer transitions 0/163 dead transitions. [2023-08-28 18:07:28,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 163 transitions, 641 flow [2023-08-28 18:07:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:07:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:07:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 839 transitions. [2023-08-28 18:07:28,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6327300150829562 [2023-08-28 18:07:28,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 839 transitions. [2023-08-28 18:07:28,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 839 transitions. [2023-08-28 18:07:28,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:28,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 839 transitions. [2023-08-28 18:07:28,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,639 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,639 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 233 flow. Second operand 6 states and 839 transitions. [2023-08-28 18:07:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 163 transitions, 641 flow [2023-08-28 18:07:28,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 163 transitions, 641 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:28,647 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 309 flow [2023-08-28 18:07:28,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2023-08-28 18:07:28,649 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2023-08-28 18:07:28,651 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 309 flow [2023-08-28 18:07:28,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:28,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:28,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 18:07:28,652 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:28,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:28,652 INFO L85 PathProgramCache]: Analyzing trace with hash -148445252, now seen corresponding path program 1 times [2023-08-28 18:07:28,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:28,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380912132] [2023-08-28 18:07:28,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:28,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:28,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:28,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380912132] [2023-08-28 18:07:28,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380912132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:28,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:28,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981259357] [2023-08-28 18:07:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:28,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:28,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:28,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:28,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:28,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:28,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:28,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:28,927 INFO L130 PetriNetUnfolder]: 841/3029 cut-off events. [2023-08-28 18:07:28,928 INFO L131 PetriNetUnfolder]: For 387/387 co-relation queries the response was YES. [2023-08-28 18:07:28,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5711 conditions, 3029 events. 841/3029 cut-off events. For 387/387 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 25308 event pairs, 303 based on Foata normal form. 0/2643 useless extension candidates. Maximal degree in co-relation 5697. Up to 1216 conditions per place. [2023-08-28 18:07:28,962 INFO L137 encePairwiseOnDemand]: 207/221 looper letters, 72 selfloop transitions, 10 changer transitions 0/130 dead transitions. [2023-08-28 18:07:28,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 130 transitions, 561 flow [2023-08-28 18:07:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-28 18:07:28,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6365007541478129 [2023-08-28 18:07:28,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-28 18:07:28,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-28 18:07:28,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:28,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-28 18:07:28,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,967 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 309 flow. Second operand 3 states and 422 transitions. [2023-08-28 18:07:28,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 130 transitions, 561 flow [2023-08-28 18:07:28,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 130 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:28,970 INFO L231 Difference]: Finished difference. Result has 102 places, 106 transitions, 397 flow [2023-08-28 18:07:28,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=102, PETRI_TRANSITIONS=106} [2023-08-28 18:07:28,971 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 13 predicate places. [2023-08-28 18:07:28,971 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 106 transitions, 397 flow [2023-08-28 18:07:28,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:28,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:28,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:28,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 18:07:28,972 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:28,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash 573876380, now seen corresponding path program 1 times [2023-08-28 18:07:28,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:28,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456816177] [2023-08-28 18:07:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:28,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:29,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:29,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:29,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456816177] [2023-08-28 18:07:29,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456816177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:29,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:29,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:29,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460281291] [2023-08-28 18:07:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:29,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:29,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:29,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:29,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:29,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:29,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 106 transitions, 397 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:29,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:29,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:29,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:30,087 INFO L130 PetriNetUnfolder]: 1684/5694 cut-off events. [2023-08-28 18:07:30,088 INFO L131 PetriNetUnfolder]: For 1897/1941 co-relation queries the response was YES. [2023-08-28 18:07:30,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12492 conditions, 5694 events. 1684/5694 cut-off events. For 1897/1941 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 55480 event pairs, 701 based on Foata normal form. 18/4928 useless extension candidates. Maximal degree in co-relation 12476. Up to 1087 conditions per place. [2023-08-28 18:07:30,111 INFO L137 encePairwiseOnDemand]: 209/221 looper letters, 186 selfloop transitions, 35 changer transitions 6/282 dead transitions. [2023-08-28 18:07:30,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 282 transitions, 1507 flow [2023-08-28 18:07:30,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 18:07:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 18:07:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1333 transitions. [2023-08-28 18:07:30,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031674208144796 [2023-08-28 18:07:30,114 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1333 transitions. [2023-08-28 18:07:30,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1333 transitions. [2023-08-28 18:07:30,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:30,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1333 transitions. [2023-08-28 18:07:30,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.3) internal successors, (1333), 10 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:30,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:30,120 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:30,121 INFO L175 Difference]: Start difference. First operand has 102 places, 106 transitions, 397 flow. Second operand 10 states and 1333 transitions. [2023-08-28 18:07:30,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 282 transitions, 1507 flow [2023-08-28 18:07:30,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 282 transitions, 1459 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:07:30,136 INFO L231 Difference]: Finished difference. Result has 118 places, 136 transitions, 693 flow [2023-08-28 18:07:30,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=693, PETRI_PLACES=118, PETRI_TRANSITIONS=136} [2023-08-28 18:07:30,138 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2023-08-28 18:07:30,138 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 136 transitions, 693 flow [2023-08-28 18:07:30,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:30,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:30,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:30,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 18:07:30,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:30,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash -996588538, now seen corresponding path program 2 times [2023-08-28 18:07:30,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:30,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736914661] [2023-08-28 18:07:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:30,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:30,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:30,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736914661] [2023-08-28 18:07:30,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736914661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:30,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:30,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:30,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346215967] [2023-08-28 18:07:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:30,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:30,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:30,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:30,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:30,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:30,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 136 transitions, 693 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:30,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:30,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:30,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:31,454 INFO L130 PetriNetUnfolder]: 2167/7469 cut-off events. [2023-08-28 18:07:31,454 INFO L131 PetriNetUnfolder]: For 6069/6120 co-relation queries the response was YES. [2023-08-28 18:07:31,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18117 conditions, 7469 events. 2167/7469 cut-off events. For 6069/6120 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 77514 event pairs, 739 based on Foata normal form. 18/6419 useless extension candidates. Maximal degree in co-relation 18093. Up to 1622 conditions per place. [2023-08-28 18:07:31,493 INFO L137 encePairwiseOnDemand]: 210/221 looper letters, 173 selfloop transitions, 61 changer transitions 4/293 dead transitions. [2023-08-28 18:07:31,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 293 transitions, 1927 flow [2023-08-28 18:07:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-28 18:07:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-28 18:07:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1204 transitions. [2023-08-28 18:07:31,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6053293112116641 [2023-08-28 18:07:31,496 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1204 transitions. [2023-08-28 18:07:31,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1204 transitions. [2023-08-28 18:07:31,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:31,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1204 transitions. [2023-08-28 18:07:31,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:31,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 221.0) internal successors, (2210), 10 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:31,501 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 221.0) internal successors, (2210), 10 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:31,501 INFO L175 Difference]: Start difference. First operand has 118 places, 136 transitions, 693 flow. Second operand 9 states and 1204 transitions. [2023-08-28 18:07:31,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 293 transitions, 1927 flow [2023-08-28 18:07:31,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 293 transitions, 1927 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:31,525 INFO L231 Difference]: Finished difference. Result has 133 places, 168 transitions, 1247 flow [2023-08-28 18:07:31,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1247, PETRI_PLACES=133, PETRI_TRANSITIONS=168} [2023-08-28 18:07:31,526 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 44 predicate places. [2023-08-28 18:07:31,526 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 168 transitions, 1247 flow [2023-08-28 18:07:31,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:31,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:31,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:31,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 18:07:31,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:31,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1651442948, now seen corresponding path program 3 times [2023-08-28 18:07:31,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:31,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603417717] [2023-08-28 18:07:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:31,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:31,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:31,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603417717] [2023-08-28 18:07:31,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603417717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:31,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:31,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:31,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864818809] [2023-08-28 18:07:31,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:31,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:31,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:31,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:31,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:31,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:31,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 168 transitions, 1247 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:31,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:31,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:31,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:32,919 INFO L130 PetriNetUnfolder]: 2304/7999 cut-off events. [2023-08-28 18:07:32,919 INFO L131 PetriNetUnfolder]: For 12867/12911 co-relation queries the response was YES. [2023-08-28 18:07:32,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21523 conditions, 7999 events. 2304/7999 cut-off events. For 12867/12911 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 84109 event pairs, 909 based on Foata normal form. 18/6890 useless extension candidates. Maximal degree in co-relation 21492. Up to 1891 conditions per place. [2023-08-28 18:07:32,959 INFO L137 encePairwiseOnDemand]: 210/221 looper letters, 220 selfloop transitions, 75 changer transitions 2/352 dead transitions. [2023-08-28 18:07:32,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 352 transitions, 2909 flow [2023-08-28 18:07:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 18:07:32,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 18:07:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1333 transitions. [2023-08-28 18:07:32,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031674208144796 [2023-08-28 18:07:32,962 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1333 transitions. [2023-08-28 18:07:32,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1333 transitions. [2023-08-28 18:07:32,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:32,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1333 transitions. [2023-08-28 18:07:32,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.3) internal successors, (1333), 10 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:32,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:32,967 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:32,967 INFO L175 Difference]: Start difference. First operand has 133 places, 168 transitions, 1247 flow. Second operand 10 states and 1333 transitions. [2023-08-28 18:07:32,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 352 transitions, 2909 flow [2023-08-28 18:07:33,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 352 transitions, 2901 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:33,015 INFO L231 Difference]: Finished difference. Result has 150 places, 198 transitions, 1924 flow [2023-08-28 18:07:33,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=1245, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1924, PETRI_PLACES=150, PETRI_TRANSITIONS=198} [2023-08-28 18:07:33,016 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 61 predicate places. [2023-08-28 18:07:33,016 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 198 transitions, 1924 flow [2023-08-28 18:07:33,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:33,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:33,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:33,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 18:07:33,017 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:33,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -994556488, now seen corresponding path program 4 times [2023-08-28 18:07:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474657768] [2023-08-28 18:07:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:33,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:33,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474657768] [2023-08-28 18:07:33,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474657768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:33,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:33,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:33,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287250258] [2023-08-28 18:07:33,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:33,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:33,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:33,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:33,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:33,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:33,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 198 transitions, 1924 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:33,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:33,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:33,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:34,623 INFO L130 PetriNetUnfolder]: 2795/9593 cut-off events. [2023-08-28 18:07:34,624 INFO L131 PetriNetUnfolder]: For 26282/26339 co-relation queries the response was YES. [2023-08-28 18:07:34,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28322 conditions, 9593 events. 2795/9593 cut-off events. For 26282/26339 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 104918 event pairs, 1087 based on Foata normal form. 17/8237 useless extension candidates. Maximal degree in co-relation 28283. Up to 1816 conditions per place. [2023-08-28 18:07:34,684 INFO L137 encePairwiseOnDemand]: 210/221 looper letters, 206 selfloop transitions, 96 changer transitions 2/359 dead transitions. [2023-08-28 18:07:34,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 359 transitions, 3531 flow [2023-08-28 18:07:34,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-28 18:07:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-28 18:07:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1447 transitions. [2023-08-28 18:07:34,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5952283011106541 [2023-08-28 18:07:34,688 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1447 transitions. [2023-08-28 18:07:34,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1447 transitions. [2023-08-28 18:07:34,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:34,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1447 transitions. [2023-08-28 18:07:34,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 131.54545454545453) internal successors, (1447), 11 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:34,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 221.0) internal successors, (2652), 12 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:34,694 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 221.0) internal successors, (2652), 12 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:34,694 INFO L175 Difference]: Start difference. First operand has 150 places, 198 transitions, 1924 flow. Second operand 11 states and 1447 transitions. [2023-08-28 18:07:34,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 359 transitions, 3531 flow [2023-08-28 18:07:34,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 359 transitions, 3511 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:34,805 INFO L231 Difference]: Finished difference. Result has 169 places, 228 transitions, 2757 flow [2023-08-28 18:07:34,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=1904, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2757, PETRI_PLACES=169, PETRI_TRANSITIONS=228} [2023-08-28 18:07:34,807 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 80 predicate places. [2023-08-28 18:07:34,807 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 228 transitions, 2757 flow [2023-08-28 18:07:34,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:34,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:34,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:34,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 18:07:34,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:34,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:34,809 INFO L85 PathProgramCache]: Analyzing trace with hash -29042954, now seen corresponding path program 5 times [2023-08-28 18:07:34,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:34,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142518184] [2023-08-28 18:07:34,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:34,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:35,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:35,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142518184] [2023-08-28 18:07:35,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142518184] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:35,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:35,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:35,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348492522] [2023-08-28 18:07:35,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:35,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:35,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:35,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:35,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:35,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 228 transitions, 2757 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:35,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:35,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:35,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:36,762 INFO L130 PetriNetUnfolder]: 3304/11550 cut-off events. [2023-08-28 18:07:36,763 INFO L131 PetriNetUnfolder]: For 45830/45898 co-relation queries the response was YES. [2023-08-28 18:07:36,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36278 conditions, 11550 events. 3304/11550 cut-off events. For 45830/45898 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 131678 event pairs, 1263 based on Foata normal form. 17/9945 useless extension candidates. Maximal degree in co-relation 36230. Up to 2243 conditions per place. [2023-08-28 18:07:36,828 INFO L137 encePairwiseOnDemand]: 210/221 looper letters, 229 selfloop transitions, 117 changer transitions 2/403 dead transitions. [2023-08-28 18:07:36,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 403 transitions, 4793 flow [2023-08-28 18:07:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 18:07:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 18:07:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1335 transitions. [2023-08-28 18:07:36,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6040723981900452 [2023-08-28 18:07:36,831 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1335 transitions. [2023-08-28 18:07:36,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1335 transitions. [2023-08-28 18:07:36,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:36,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1335 transitions. [2023-08-28 18:07:36,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.5) internal successors, (1335), 10 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:36,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:36,836 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:36,836 INFO L175 Difference]: Start difference. First operand has 169 places, 228 transitions, 2757 flow. Second operand 10 states and 1335 transitions. [2023-08-28 18:07:36,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 403 transitions, 4793 flow [2023-08-28 18:07:37,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 403 transitions, 4760 flow, removed 13 selfloop flow, removed 1 redundant places. [2023-08-28 18:07:37,065 INFO L231 Difference]: Finished difference. Result has 185 places, 263 transitions, 3845 flow [2023-08-28 18:07:37,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=2732, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3845, PETRI_PLACES=185, PETRI_TRANSITIONS=263} [2023-08-28 18:07:37,066 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 96 predicate places. [2023-08-28 18:07:37,066 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 263 transitions, 3845 flow [2023-08-28 18:07:37,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:37,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:37,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:37,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-28 18:07:37,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:37,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:37,067 INFO L85 PathProgramCache]: Analyzing trace with hash -887308888, now seen corresponding path program 6 times [2023-08-28 18:07:37,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:37,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143269220] [2023-08-28 18:07:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:37,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:37,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:37,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143269220] [2023-08-28 18:07:37,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143269220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:37,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:37,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:37,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912303385] [2023-08-28 18:07:37,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:37,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:37,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:37,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:37,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:37,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:37,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 263 transitions, 3845 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:37,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:37,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:37,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:39,253 INFO L130 PetriNetUnfolder]: 3772/13099 cut-off events. [2023-08-28 18:07:39,253 INFO L131 PetriNetUnfolder]: For 72675/72752 co-relation queries the response was YES. [2023-08-28 18:07:39,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43856 conditions, 13099 events. 3772/13099 cut-off events. For 72675/72752 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 152674 event pairs, 1474 based on Foata normal form. 17/11262 useless extension candidates. Maximal degree in co-relation 43801. Up to 2305 conditions per place. [2023-08-28 18:07:39,339 INFO L137 encePairwiseOnDemand]: 210/221 looper letters, 232 selfloop transitions, 140 changer transitions 2/429 dead transitions. [2023-08-28 18:07:39,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 429 transitions, 5799 flow [2023-08-28 18:07:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-28 18:07:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-28 18:07:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1573 transitions. [2023-08-28 18:07:39,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5931372549019608 [2023-08-28 18:07:39,342 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1573 transitions. [2023-08-28 18:07:39,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1573 transitions. [2023-08-28 18:07:39,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:39,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1573 transitions. [2023-08-28 18:07:39,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 131.08333333333334) internal successors, (1573), 12 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:39,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 221.0) internal successors, (2873), 13 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:39,349 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 221.0) internal successors, (2873), 13 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:39,349 INFO L175 Difference]: Start difference. First operand has 185 places, 263 transitions, 3845 flow. Second operand 12 states and 1573 transitions. [2023-08-28 18:07:39,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 429 transitions, 5799 flow [2023-08-28 18:07:39,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 429 transitions, 5755 flow, removed 22 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:39,707 INFO L231 Difference]: Finished difference. Result has 206 places, 294 transitions, 5009 flow [2023-08-28 18:07:39,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=3805, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5009, PETRI_PLACES=206, PETRI_TRANSITIONS=294} [2023-08-28 18:07:39,708 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 117 predicate places. [2023-08-28 18:07:39,708 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 294 transitions, 5009 flow [2023-08-28 18:07:39,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:39,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:39,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:39,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-28 18:07:39,709 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:39,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:39,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1084181034, now seen corresponding path program 1 times [2023-08-28 18:07:39,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:39,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110134545] [2023-08-28 18:07:39,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:39,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:40,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:40,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110134545] [2023-08-28 18:07:40,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110134545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:40,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:40,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:40,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269651286] [2023-08-28 18:07:40,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:40,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:40,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:40,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:40,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:40,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:40,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 294 transitions, 5009 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:40,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:40,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:40,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:42,051 INFO L130 PetriNetUnfolder]: 3875/12911 cut-off events. [2023-08-28 18:07:42,051 INFO L131 PetriNetUnfolder]: For 88459/88614 co-relation queries the response was YES. [2023-08-28 18:07:42,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42019 conditions, 12911 events. 3875/12911 cut-off events. For 88459/88614 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 147464 event pairs, 667 based on Foata normal form. 90/11348 useless extension candidates. Maximal degree in co-relation 41954. Up to 3913 conditions per place. [2023-08-28 18:07:42,132 INFO L137 encePairwiseOnDemand]: 210/221 looper letters, 206 selfloop transitions, 145 changer transitions 2/494 dead transitions. [2023-08-28 18:07:42,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 494 transitions, 7519 flow [2023-08-28 18:07:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 18:07:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 18:07:42,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1331 transitions. [2023-08-28 18:07:42,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.602262443438914 [2023-08-28 18:07:42,136 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1331 transitions. [2023-08-28 18:07:42,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1331 transitions. [2023-08-28 18:07:42,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:42,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1331 transitions. [2023-08-28 18:07:42,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.1) internal successors, (1331), 10 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:42,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:42,141 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:42,141 INFO L175 Difference]: Start difference. First operand has 206 places, 294 transitions, 5009 flow. Second operand 10 states and 1331 transitions. [2023-08-28 18:07:42,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 494 transitions, 7519 flow [2023-08-28 18:07:42,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 494 transitions, 7449 flow, removed 18 selfloop flow, removed 1 redundant places. [2023-08-28 18:07:42,464 INFO L231 Difference]: Finished difference. Result has 223 places, 349 transitions, 6811 flow [2023-08-28 18:07:42,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=4955, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6811, PETRI_PLACES=223, PETRI_TRANSITIONS=349} [2023-08-28 18:07:42,465 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 134 predicate places. [2023-08-28 18:07:42,465 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 349 transitions, 6811 flow [2023-08-28 18:07:42,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:42,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:42,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:42,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-28 18:07:42,466 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:42,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:42,466 INFO L85 PathProgramCache]: Analyzing trace with hash -207710202, now seen corresponding path program 2 times [2023-08-28 18:07:42,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:42,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278896844] [2023-08-28 18:07:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:42,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:42,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:42,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:42,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278896844] [2023-08-28 18:07:42,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278896844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:42,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:42,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:42,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814570864] [2023-08-28 18:07:42,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:42,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:42,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:42,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:42,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:42,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:42,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 349 transitions, 6811 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:42,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:42,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:42,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:45,102 INFO L130 PetriNetUnfolder]: 4424/14691 cut-off events. [2023-08-28 18:07:45,102 INFO L131 PetriNetUnfolder]: For 129337/129505 co-relation queries the response was YES. [2023-08-28 18:07:45,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52576 conditions, 14691 events. 4424/14691 cut-off events. For 129337/129505 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 171234 event pairs, 778 based on Foata normal form. 97/12904 useless extension candidates. Maximal degree in co-relation 52503. Up to 4505 conditions per place. [2023-08-28 18:07:45,205 INFO L137 encePairwiseOnDemand]: 209/221 looper letters, 207 selfloop transitions, 185 changer transitions 3/536 dead transitions. [2023-08-28 18:07:45,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 536 transitions, 9301 flow [2023-08-28 18:07:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-28 18:07:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-28 18:07:45,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1221 transitions. [2023-08-28 18:07:45,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6138763197586727 [2023-08-28 18:07:45,208 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1221 transitions. [2023-08-28 18:07:45,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1221 transitions. [2023-08-28 18:07:45,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:45,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1221 transitions. [2023-08-28 18:07:45,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 135.66666666666666) internal successors, (1221), 9 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:45,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 221.0) internal successors, (2210), 10 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:45,334 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 221.0) internal successors, (2210), 10 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:45,334 INFO L175 Difference]: Start difference. First operand has 223 places, 349 transitions, 6811 flow. Second operand 9 states and 1221 transitions. [2023-08-28 18:07:45,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 536 transitions, 9301 flow [2023-08-28 18:07:45,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 536 transitions, 9295 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:45,840 INFO L231 Difference]: Finished difference. Result has 239 places, 396 transitions, 8683 flow [2023-08-28 18:07:45,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=6807, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8683, PETRI_PLACES=239, PETRI_TRANSITIONS=396} [2023-08-28 18:07:45,841 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 150 predicate places. [2023-08-28 18:07:45,841 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 396 transitions, 8683 flow [2023-08-28 18:07:45,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:45,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:45,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:45,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-28 18:07:45,842 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:45,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1992532936, now seen corresponding path program 3 times [2023-08-28 18:07:45,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:45,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538936360] [2023-08-28 18:07:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:45,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:46,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:46,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538936360] [2023-08-28 18:07:46,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538936360] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:46,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:46,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:46,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880495431] [2023-08-28 18:07:46,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:46,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:46,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:46,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:46,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:46,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:46,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 396 transitions, 8683 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:46,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:46,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:46,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:48,891 INFO L130 PetriNetUnfolder]: 4636/15406 cut-off events. [2023-08-28 18:07:48,891 INFO L131 PetriNetUnfolder]: For 169608/169774 co-relation queries the response was YES. [2023-08-28 18:07:48,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59363 conditions, 15406 events. 4636/15406 cut-off events. For 169608/169774 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 180803 event pairs, 1061 based on Foata normal form. 90/13525 useless extension candidates. Maximal degree in co-relation 59282. Up to 3843 conditions per place. [2023-08-28 18:07:48,991 INFO L137 encePairwiseOnDemand]: 209/221 looper letters, 249 selfloop transitions, 213 changer transitions 2/605 dead transitions. [2023-08-28 18:07:48,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 605 transitions, 11407 flow [2023-08-28 18:07:48,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 18:07:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 18:07:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1341 transitions. [2023-08-28 18:07:48,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.606787330316742 [2023-08-28 18:07:48,994 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1341 transitions. [2023-08-28 18:07:48,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1341 transitions. [2023-08-28 18:07:48,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:48,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1341 transitions. [2023-08-28 18:07:48,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.1) internal successors, (1341), 10 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:48,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:48,998 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:48,998 INFO L175 Difference]: Start difference. First operand has 239 places, 396 transitions, 8683 flow. Second operand 10 states and 1341 transitions. [2023-08-28 18:07:48,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 605 transitions, 11407 flow [2023-08-28 18:07:49,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 605 transitions, 11397 flow, removed 5 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:49,568 INFO L231 Difference]: Finished difference. Result has 257 places, 437 transitions, 10487 flow [2023-08-28 18:07:49,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=8681, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10487, PETRI_PLACES=257, PETRI_TRANSITIONS=437} [2023-08-28 18:07:49,569 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 168 predicate places. [2023-08-28 18:07:49,569 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 437 transitions, 10487 flow [2023-08-28 18:07:49,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:49,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:49,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:49,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-28 18:07:49,570 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:49,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash -891642650, now seen corresponding path program 4 times [2023-08-28 18:07:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61038407] [2023-08-28 18:07:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:49,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:49,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:49,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61038407] [2023-08-28 18:07:49,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61038407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:49,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:49,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:49,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423450812] [2023-08-28 18:07:49,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:49,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:49,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:50,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:50,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 437 transitions, 10487 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:50,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:50,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:50,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:53,352 INFO L130 PetriNetUnfolder]: 5205/17019 cut-off events. [2023-08-28 18:07:53,353 INFO L131 PetriNetUnfolder]: For 234313/234499 co-relation queries the response was YES. [2023-08-28 18:07:53,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70769 conditions, 17019 events. 5205/17019 cut-off events. For 234313/234499 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 202640 event pairs, 1023 based on Foata normal form. 96/14933 useless extension candidates. Maximal degree in co-relation 70679. Up to 4809 conditions per place. [2023-08-28 18:07:53,497 INFO L137 encePairwiseOnDemand]: 209/221 looper letters, 250 selfloop transitions, 244 changer transitions 2/637 dead transitions. [2023-08-28 18:07:53,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 637 transitions, 13427 flow [2023-08-28 18:07:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-28 18:07:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-28 18:07:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1465 transitions. [2023-08-28 18:07:53,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6026326614561909 [2023-08-28 18:07:53,502 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1465 transitions. [2023-08-28 18:07:53,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1465 transitions. [2023-08-28 18:07:53,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:53,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1465 transitions. [2023-08-28 18:07:53,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:53,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 221.0) internal successors, (2652), 12 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:53,507 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 221.0) internal successors, (2652), 12 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:53,507 INFO L175 Difference]: Start difference. First operand has 257 places, 437 transitions, 10487 flow. Second operand 11 states and 1465 transitions. [2023-08-28 18:07:53,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 637 transitions, 13427 flow [2023-08-28 18:07:54,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 637 transitions, 13407 flow, removed 10 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:54,494 INFO L231 Difference]: Finished difference. Result has 277 places, 483 transitions, 12689 flow [2023-08-28 18:07:54,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=10467, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12689, PETRI_PLACES=277, PETRI_TRANSITIONS=483} [2023-08-28 18:07:54,495 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 188 predicate places. [2023-08-28 18:07:54,495 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 483 transitions, 12689 flow [2023-08-28 18:07:54,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:54,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:54,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:54,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-28 18:07:54,496 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:07:54,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1842178356, now seen corresponding path program 5 times [2023-08-28 18:07:54,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:54,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411925125] [2023-08-28 18:07:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:54,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:54,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:54,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411925125] [2023-08-28 18:07:54,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411925125] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:54,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:54,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:07:54,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768125363] [2023-08-28 18:07:54,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:54,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:07:54,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:54,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:07:54,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:07:54,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:07:54,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 483 transitions, 12689 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:54,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:54,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:07:54,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:59,178 INFO L130 PetriNetUnfolder]: 5791/18940 cut-off events. [2023-08-28 18:07:59,178 INFO L131 PetriNetUnfolder]: For 316478/316681 co-relation queries the response was YES. [2023-08-28 18:07:59,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84439 conditions, 18940 events. 5791/18940 cut-off events. For 316478/316681 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 229708 event pairs, 1078 based on Foata normal form. 96/16610 useless extension candidates. Maximal degree in co-relation 84339. Up to 4652 conditions per place. [2023-08-28 18:07:59,338 INFO L137 encePairwiseOnDemand]: 209/221 looper letters, 269 selfloop transitions, 281 changer transitions 2/693 dead transitions. [2023-08-28 18:07:59,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 693 transitions, 16201 flow [2023-08-28 18:07:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-28 18:07:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-28 18:07:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1346 transitions. [2023-08-28 18:07:59,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.609049773755656 [2023-08-28 18:07:59,341 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1346 transitions. [2023-08-28 18:07:59,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1346 transitions. [2023-08-28 18:07:59,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:59,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1346 transitions. [2023-08-28 18:07:59,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.6) internal successors, (1346), 10 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:59,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:59,345 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 221.0) internal successors, (2431), 11 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:59,345 INFO L175 Difference]: Start difference. First operand has 277 places, 483 transitions, 12689 flow. Second operand 10 states and 1346 transitions. [2023-08-28 18:07:59,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 693 transitions, 16201 flow [2023-08-28 18:08:00,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 693 transitions, 16150 flow, removed 17 selfloop flow, removed 1 redundant places. [2023-08-28 18:08:00,786 INFO L231 Difference]: Finished difference. Result has 294 places, 533 transitions, 15298 flow [2023-08-28 18:08:00,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=12650, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15298, PETRI_PLACES=294, PETRI_TRANSITIONS=533} [2023-08-28 18:08:00,786 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 205 predicate places. [2023-08-28 18:08:00,786 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 533 transitions, 15298 flow [2023-08-28 18:08:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:00,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:00,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:08:00,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-28 18:08:00,787 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:00,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash -791717870, now seen corresponding path program 6 times [2023-08-28 18:08:00,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:00,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080947995] [2023-08-28 18:08:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:00,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:01,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:01,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080947995] [2023-08-28 18:08:01,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080947995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:01,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:01,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-28 18:08:01,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42583251] [2023-08-28 18:08:01,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:01,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-28 18:08:01,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:01,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-28 18:08:01,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-28 18:08:01,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 221 [2023-08-28 18:08:01,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 533 transitions, 15298 flow. Second operand has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:01,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:01,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 221 [2023-08-28 18:08:01,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:06,218 INFO L130 PetriNetUnfolder]: 6357/20767 cut-off events. [2023-08-28 18:08:06,218 INFO L131 PetriNetUnfolder]: For 413856/414067 co-relation queries the response was YES. [2023-08-28 18:08:06,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98249 conditions, 20767 events. 6357/20767 cut-off events. For 413856/414067 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 255945 event pairs, 1514 based on Foata normal form. 89/18196 useless extension candidates. Maximal degree in co-relation 98141. Up to 5307 conditions per place. [2023-08-28 18:08:06,398 INFO L137 encePairwiseOnDemand]: 209/221 looper letters, 294 selfloop transitions, 318 changer transitions 2/755 dead transitions. [2023-08-28 18:08:06,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 755 transitions, 19108 flow [2023-08-28 18:08:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-28 18:08:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-28 18:08:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1709 transitions. [2023-08-28 18:08:06,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5948485903237034 [2023-08-28 18:08:06,400 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1709 transitions. [2023-08-28 18:08:06,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1709 transitions. [2023-08-28 18:08:06,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:06,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1709 transitions. [2023-08-28 18:08:06,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 131.46153846153845) internal successors, (1709), 13 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:06,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 221.0) internal successors, (3094), 14 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:06,405 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 221.0) internal successors, (3094), 14 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:06,405 INFO L175 Difference]: Start difference. First operand has 294 places, 533 transitions, 15298 flow. Second operand 13 states and 1709 transitions. [2023-08-28 18:08:06,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 755 transitions, 19108 flow [2023-08-28 18:08:08,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 755 transitions, 19012 flow, removed 48 selfloop flow, removed 0 redundant places. [2023-08-28 18:08:08,526 INFO L231 Difference]: Finished difference. Result has 318 places, 588 transitions, 18218 flow [2023-08-28 18:08:08,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=15216, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18218, PETRI_PLACES=318, PETRI_TRANSITIONS=588} [2023-08-28 18:08:08,527 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 229 predicate places. [2023-08-28 18:08:08,527 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 588 transitions, 18218 flow [2023-08-28 18:08:08,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:08,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:08,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:08:08,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-28 18:08:08,528 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:08,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1228545723, now seen corresponding path program 1 times [2023-08-28 18:08:08,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:08,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089529056] [2023-08-28 18:08:08,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:08,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:08,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:08,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089529056] [2023-08-28 18:08:08,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089529056] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:08,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:08,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:08,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589133768] [2023-08-28 18:08:08,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:08,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:08,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:08,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:08,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:08,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 221 [2023-08-28 18:08:08,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 588 transitions, 18218 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:08,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:08,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 221 [2023-08-28 18:08:08,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:12,746 INFO L130 PetriNetUnfolder]: 4899/18319 cut-off events. [2023-08-28 18:08:12,747 INFO L131 PetriNetUnfolder]: For 433770/434170 co-relation queries the response was YES. [2023-08-28 18:08:12,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87114 conditions, 18319 events. 4899/18319 cut-off events. For 433770/434170 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 231935 event pairs, 2296 based on Foata normal form. 116/15618 useless extension candidates. Maximal degree in co-relation 86994. Up to 7535 conditions per place. [2023-08-28 18:08:12,907 INFO L137 encePairwiseOnDemand]: 214/221 looper letters, 371 selfloop transitions, 6 changer transitions 0/627 dead transitions. [2023-08-28 18:08:12,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 627 transitions, 20264 flow [2023-08-28 18:08:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:08:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:08:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2023-08-28 18:08:12,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6033182503770739 [2023-08-28 18:08:12,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2023-08-28 18:08:12,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2023-08-28 18:08:12,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:12,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2023-08-28 18:08:12,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:12,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:12,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:12,910 INFO L175 Difference]: Start difference. First operand has 318 places, 588 transitions, 18218 flow. Second operand 3 states and 400 transitions. [2023-08-28 18:08:12,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 627 transitions, 20264 flow [2023-08-28 18:08:14,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 627 transitions, 20154 flow, removed 34 selfloop flow, removed 1 redundant places. [2023-08-28 18:08:14,869 INFO L231 Difference]: Finished difference. Result has 321 places, 593 transitions, 18158 flow [2023-08-28 18:08:14,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18112, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18158, PETRI_PLACES=321, PETRI_TRANSITIONS=593} [2023-08-28 18:08:14,869 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 232 predicate places. [2023-08-28 18:08:14,869 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 593 transitions, 18158 flow [2023-08-28 18:08:14,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:14,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:14,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:08:14,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-28 18:08:14,870 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:14,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:14,870 INFO L85 PathProgramCache]: Analyzing trace with hash 483584983, now seen corresponding path program 1 times [2023-08-28 18:08:14,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:14,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537230467] [2023-08-28 18:08:14,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:14,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:14,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:14,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537230467] [2023-08-28 18:08:14,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537230467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:14,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:14,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851723877] [2023-08-28 18:08:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:14,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:14,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:14,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:14,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:14,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 221 [2023-08-28 18:08:14,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 593 transitions, 18158 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:14,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:14,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 221 [2023-08-28 18:08:14,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:19,680 INFO L130 PetriNetUnfolder]: 5836/20822 cut-off events. [2023-08-28 18:08:19,681 INFO L131 PetriNetUnfolder]: For 485022/485602 co-relation queries the response was YES. [2023-08-28 18:08:19,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99150 conditions, 20822 events. 5836/20822 cut-off events. For 485022/485602 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 265147 event pairs, 2182 based on Foata normal form. 160/18388 useless extension candidates. Maximal degree in co-relation 99029. Up to 7756 conditions per place. [2023-08-28 18:08:19,860 INFO L137 encePairwiseOnDemand]: 211/221 looper letters, 423 selfloop transitions, 11 changer transitions 0/683 dead transitions. [2023-08-28 18:08:19,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 683 transitions, 21882 flow [2023-08-28 18:08:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:08:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:08:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-08-28 18:08:19,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6334841628959276 [2023-08-28 18:08:19,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-08-28 18:08:19,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-08-28 18:08:19,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:19,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-08-28 18:08:19,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:19,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:19,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:19,863 INFO L175 Difference]: Start difference. First operand has 321 places, 593 transitions, 18158 flow. Second operand 3 states and 420 transitions. [2023-08-28 18:08:19,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 683 transitions, 21882 flow [2023-08-28 18:08:21,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 683 transitions, 21862 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-28 18:08:21,991 INFO L231 Difference]: Finished difference. Result has 323 places, 603 transitions, 18246 flow [2023-08-28 18:08:21,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18144, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18246, PETRI_PLACES=323, PETRI_TRANSITIONS=603} [2023-08-28 18:08:21,992 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 234 predicate places. [2023-08-28 18:08:21,992 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 603 transitions, 18246 flow [2023-08-28 18:08:21,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:21,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:21,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:08:21,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-28 18:08:21,993 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:21,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:21,994 INFO L85 PathProgramCache]: Analyzing trace with hash -726385844, now seen corresponding path program 1 times [2023-08-28 18:08:21,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:21,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058264998] [2023-08-28 18:08:21,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:21,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:22,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:22,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058264998] [2023-08-28 18:08:22,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058264998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:22,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:22,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:22,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797495731] [2023-08-28 18:08:22,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:22,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:22,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:22,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:22,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:22,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 221 [2023-08-28 18:08:22,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 603 transitions, 18246 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:22,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:22,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 221 [2023-08-28 18:08:22,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:26,982 INFO L130 PetriNetUnfolder]: 5938/21009 cut-off events. [2023-08-28 18:08:26,982 INFO L131 PetriNetUnfolder]: For 488023/488755 co-relation queries the response was YES. [2023-08-28 18:08:27,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105098 conditions, 21009 events. 5938/21009 cut-off events. For 488023/488755 co-relation queries the response was YES. Maximal size of possible extension queue 930. Compared 267885 event pairs, 2288 based on Foata normal form. 160/18678 useless extension candidates. Maximal degree in co-relation 104976. Up to 9173 conditions per place. [2023-08-28 18:08:27,207 INFO L137 encePairwiseOnDemand]: 214/221 looper letters, 393 selfloop transitions, 12 changer transitions 0/658 dead transitions. [2023-08-28 18:08:27,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 658 transitions, 20650 flow [2023-08-28 18:08:27,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:08:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:08:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-28 18:08:27,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6123680241327301 [2023-08-28 18:08:27,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-28 18:08:27,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-28 18:08:27,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:27,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-28 18:08:27,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:27,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:27,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:27,210 INFO L175 Difference]: Start difference. First operand has 323 places, 603 transitions, 18246 flow. Second operand 3 states and 406 transitions. [2023-08-28 18:08:27,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 658 transitions, 20650 flow [2023-08-28 18:08:29,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 658 transitions, 20618 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:08:29,421 INFO L231 Difference]: Finished difference. Result has 325 places, 612 transitions, 18338 flow [2023-08-28 18:08:29,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18224, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18338, PETRI_PLACES=325, PETRI_TRANSITIONS=612} [2023-08-28 18:08:29,422 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 236 predicate places. [2023-08-28 18:08:29,422 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 612 transitions, 18338 flow [2023-08-28 18:08:29,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:29,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:29,422 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] [2023-08-28 18:08:29,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-28 18:08:29,422 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:29,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:29,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1613213274, now seen corresponding path program 1 times [2023-08-28 18:08:29,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612608024] [2023-08-28 18:08:29,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:29,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:29,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612608024] [2023-08-28 18:08:29,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612608024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:29,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:29,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:29,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757062378] [2023-08-28 18:08:29,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:29,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:29,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:29,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:29,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 221 [2023-08-28 18:08:29,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 612 transitions, 18338 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:29,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:29,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 221 [2023-08-28 18:08:29,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:34,554 INFO L130 PetriNetUnfolder]: 6441/22105 cut-off events. [2023-08-28 18:08:34,554 INFO L131 PetriNetUnfolder]: For 501532/502773 co-relation queries the response was YES. [2023-08-28 18:08:34,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111634 conditions, 22105 events. 6441/22105 cut-off events. For 501532/502773 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 281266 event pairs, 2274 based on Foata normal form. 320/19918 useless extension candidates. Maximal degree in co-relation 111511. Up to 9783 conditions per place. [2023-08-28 18:08:34,754 INFO L137 encePairwiseOnDemand]: 214/221 looper letters, 388 selfloop transitions, 12 changer transitions 0/654 dead transitions. [2023-08-28 18:08:34,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 654 transitions, 20466 flow [2023-08-28 18:08:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:08:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:08:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2023-08-28 18:08:34,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6033182503770739 [2023-08-28 18:08:34,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2023-08-28 18:08:34,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2023-08-28 18:08:34,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:34,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2023-08-28 18:08:34,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:34,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:34,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:34,757 INFO L175 Difference]: Start difference. First operand has 325 places, 612 transitions, 18338 flow. Second operand 3 states and 400 transitions. [2023-08-28 18:08:34,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 654 transitions, 20466 flow [2023-08-28 18:08:36,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 654 transitions, 20438 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:08:36,918 INFO L231 Difference]: Finished difference. Result has 327 places, 620 transitions, 18426 flow [2023-08-28 18:08:36,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18314, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18426, PETRI_PLACES=327, PETRI_TRANSITIONS=620} [2023-08-28 18:08:36,918 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 238 predicate places. [2023-08-28 18:08:36,919 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 620 transitions, 18426 flow [2023-08-28 18:08:36,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:36,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:36,919 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, 1] [2023-08-28 18:08:36,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-28 18:08:36,919 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:36,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:36,920 INFO L85 PathProgramCache]: Analyzing trace with hash 725126598, now seen corresponding path program 1 times [2023-08-28 18:08:36,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:36,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75248784] [2023-08-28 18:08:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:36,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:36,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:36,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:36,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75248784] [2023-08-28 18:08:36,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75248784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:36,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:36,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:36,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086708660] [2023-08-28 18:08:36,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:36,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:36,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:36,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 221 [2023-08-28 18:08:36,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 620 transitions, 18426 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:36,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:36,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 221 [2023-08-28 18:08:36,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:42,591 INFO L130 PetriNetUnfolder]: 7149/23208 cut-off events. [2023-08-28 18:08:42,591 INFO L131 PetriNetUnfolder]: For 534296/536205 co-relation queries the response was YES. [2023-08-28 18:08:42,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120961 conditions, 23208 events. 7149/23208 cut-off events. For 534296/536205 co-relation queries the response was YES. Maximal size of possible extension queue 1002. Compared 289952 event pairs, 2200 based on Foata normal form. 542/21437 useless extension candidates. Maximal degree in co-relation 120837. Up to 10408 conditions per place. [2023-08-28 18:08:42,805 INFO L137 encePairwiseOnDemand]: 214/221 looper letters, 406 selfloop transitions, 14 changer transitions 0/675 dead transitions. [2023-08-28 18:08:42,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 675 transitions, 20868 flow [2023-08-28 18:08:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:08:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:08:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-28 18:08:42,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6123680241327301 [2023-08-28 18:08:42,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-28 18:08:42,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-28 18:08:42,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:42,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-28 18:08:42,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:42,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:42,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:42,807 INFO L175 Difference]: Start difference. First operand has 327 places, 620 transitions, 18426 flow. Second operand 3 states and 406 transitions. [2023-08-28 18:08:42,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 675 transitions, 20868 flow [2023-08-28 18:08:45,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 675 transitions, 20828 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-28 18:08:45,196 INFO L231 Difference]: Finished difference. Result has 329 places, 628 transitions, 18516 flow [2023-08-28 18:08:45,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18392, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18516, PETRI_PLACES=329, PETRI_TRANSITIONS=628} [2023-08-28 18:08:45,197 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 240 predicate places. [2023-08-28 18:08:45,198 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 628 transitions, 18516 flow [2023-08-28 18:08:45,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:45,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:45,198 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, 1, 1, 1, 1, 1] [2023-08-28 18:08:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-28 18:08:45,198 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:45,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1810648742, now seen corresponding path program 1 times [2023-08-28 18:08:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292894932] [2023-08-28 18:08:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:45,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:45,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292894932] [2023-08-28 18:08:45,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292894932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:45,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:45,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:45,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603142156] [2023-08-28 18:08:45,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:45,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:45,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:45,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:45,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 221 [2023-08-28 18:08:45,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 628 transitions, 18516 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:45,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:45,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 221 [2023-08-28 18:08:45,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:08:51,205 INFO L130 PetriNetUnfolder]: 8117/24906 cut-off events. [2023-08-28 18:08:51,206 INFO L131 PetriNetUnfolder]: For 561494/564281 co-relation queries the response was YES. [2023-08-28 18:08:51,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133049 conditions, 24906 events. 8117/24906 cut-off events. For 561494/564281 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 305408 event pairs, 2440 based on Foata normal form. 779/23260 useless extension candidates. Maximal degree in co-relation 132924. Up to 13482 conditions per place. [2023-08-28 18:08:51,451 INFO L137 encePairwiseOnDemand]: 215/221 looper letters, 387 selfloop transitions, 10 changer transitions 27/673 dead transitions. [2023-08-28 18:08:51,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 673 transitions, 20724 flow [2023-08-28 18:08:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:08:51,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:08:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-08-28 18:08:51,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6063348416289592 [2023-08-28 18:08:51,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-08-28 18:08:51,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-08-28 18:08:51,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:08:51,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-08-28 18:08:51,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:51,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:51,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:51,454 INFO L175 Difference]: Start difference. First operand has 329 places, 628 transitions, 18516 flow. Second operand 3 states and 402 transitions. [2023-08-28 18:08:51,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 673 transitions, 20724 flow [2023-08-28 18:08:54,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 673 transitions, 20678 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-28 18:08:54,097 INFO L231 Difference]: Finished difference. Result has 330 places, 632 transitions, 18442 flow [2023-08-28 18:08:54,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18478, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=18442, PETRI_PLACES=330, PETRI_TRANSITIONS=632} [2023-08-28 18:08:54,098 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 241 predicate places. [2023-08-28 18:08:54,098 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 632 transitions, 18442 flow [2023-08-28 18:08:54,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:54,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:08:54,099 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, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:08:54,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-28 18:08:54,099 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:08:54,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:08:54,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1472497569, now seen corresponding path program 1 times [2023-08-28 18:08:54,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:08:54,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205862546] [2023-08-28 18:08:54,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:08:54,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:08:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:08:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:08:54,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:08:54,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205862546] [2023-08-28 18:08:54,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205862546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:08:54,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:08:54,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:08:54,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116381680] [2023-08-28 18:08:54,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:08:54,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:08:54,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:08:54,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:08:54,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:08:54,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 221 [2023-08-28 18:08:54,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 632 transitions, 18442 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:08:54,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:08:54,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 221 [2023-08-28 18:08:54,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:09:00,309 INFO L130 PetriNetUnfolder]: 8499/25849 cut-off events. [2023-08-28 18:09:00,309 INFO L131 PetriNetUnfolder]: For 571654/574798 co-relation queries the response was YES. [2023-08-28 18:09:00,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138791 conditions, 25849 events. 8499/25849 cut-off events. For 571654/574798 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 316053 event pairs, 2247 based on Foata normal form. 757/24005 useless extension candidates. Maximal degree in co-relation 138665. Up to 13912 conditions per place. [2023-08-28 18:09:00,568 INFO L137 encePairwiseOnDemand]: 215/221 looper letters, 209 selfloop transitions, 11 changer transitions 298/690 dead transitions. [2023-08-28 18:09:00,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 690 transitions, 20952 flow [2023-08-28 18:09:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:09:00,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:09:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-08-28 18:09:00,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6168929110105581 [2023-08-28 18:09:00,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-08-28 18:09:00,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-08-28 18:09:00,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:09:00,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-08-28 18:09:00,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:00,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:00,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:00,572 INFO L175 Difference]: Start difference. First operand has 330 places, 632 transitions, 18442 flow. Second operand 3 states and 409 transitions. [2023-08-28 18:09:00,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 690 transitions, 20952 flow [2023-08-28 18:09:03,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 690 transitions, 20940 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 18:09:03,276 INFO L231 Difference]: Finished difference. Result has 332 places, 376 transitions, 7770 flow [2023-08-28 18:09:03,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=18432, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=7770, PETRI_PLACES=332, PETRI_TRANSITIONS=376} [2023-08-28 18:09:03,277 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 243 predicate places. [2023-08-28 18:09:03,277 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 376 transitions, 7770 flow [2023-08-28 18:09:03,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:03,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:09:03,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:09:03,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-28 18:09:03,278 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:09:03,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:09:03,278 INFO L85 PathProgramCache]: Analyzing trace with hash 501002626, now seen corresponding path program 1 times [2023-08-28 18:09:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:09:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127389757] [2023-08-28 18:09:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:09:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:09:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:09:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:09:03,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:09:03,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127389757] [2023-08-28 18:09:03,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127389757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:09:03,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:09:03,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:09:03,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278881872] [2023-08-28 18:09:03,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:09:03,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:09:03,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:09:03,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:09:03,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:09:03,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 221 [2023-08-28 18:09:03,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 376 transitions, 7770 flow. Second operand has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:03,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:09:03,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 221 [2023-08-28 18:09:03,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:09:07,356 INFO L130 PetriNetUnfolder]: 5743/18661 cut-off events. [2023-08-28 18:09:07,356 INFO L131 PetriNetUnfolder]: For 381590/383366 co-relation queries the response was YES. [2023-08-28 18:09:07,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99787 conditions, 18661 events. 5743/18661 cut-off events. For 381590/383366 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 219950 event pairs, 1366 based on Foata normal form. 561/17597 useless extension candidates. Maximal degree in co-relation 99660. Up to 8804 conditions per place. [2023-08-28 18:09:07,541 INFO L137 encePairwiseOnDemand]: 213/221 looper letters, 185 selfloop transitions, 51 changer transitions 2/419 dead transitions. [2023-08-28 18:09:07,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 419 transitions, 8362 flow [2023-08-28 18:09:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:09:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:09:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 793 transitions. [2023-08-28 18:09:07,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5980392156862745 [2023-08-28 18:09:07,543 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 793 transitions. [2023-08-28 18:09:07,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 793 transitions. [2023-08-28 18:09:07,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:09:07,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 793 transitions. [2023-08-28 18:09:07,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:07,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:07,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:07,546 INFO L175 Difference]: Start difference. First operand has 332 places, 376 transitions, 7770 flow. Second operand 6 states and 793 transitions. [2023-08-28 18:09:07,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 419 transitions, 8362 flow [2023-08-28 18:09:09,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 419 transitions, 7557 flow, removed 18 selfloop flow, removed 25 redundant places. [2023-08-28 18:09:09,012 INFO L231 Difference]: Finished difference. Result has 308 places, 385 transitions, 6966 flow [2023-08-28 18:09:09,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=6489, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6966, PETRI_PLACES=308, PETRI_TRANSITIONS=385} [2023-08-28 18:09:09,012 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 219 predicate places. [2023-08-28 18:09:09,013 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 385 transitions, 6966 flow [2023-08-28 18:09:09,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:09,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:09:09,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:09:09,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-28 18:09:09,013 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:09:09,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:09:09,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1209863628, now seen corresponding path program 1 times [2023-08-28 18:09:09,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:09:09,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252515142] [2023-08-28 18:09:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:09:09,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:09:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:09:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:09:09,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:09:09,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252515142] [2023-08-28 18:09:09,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252515142] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:09:09,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:09:09,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-28 18:09:09,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795229568] [2023-08-28 18:09:09,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:09:09,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-28 18:09:09,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:09:09,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-28 18:09:09,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-28 18:09:09,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 221 [2023-08-28 18:09:09,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 385 transitions, 6966 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:09,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:09:09,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 221 [2023-08-28 18:09:09,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:09:11,282 INFO L130 PetriNetUnfolder]: 2723/10565 cut-off events. [2023-08-28 18:09:11,282 INFO L131 PetriNetUnfolder]: For 175416/176014 co-relation queries the response was YES. [2023-08-28 18:09:11,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59016 conditions, 10565 events. 2723/10565 cut-off events. For 175416/176014 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 117615 event pairs, 510 based on Foata normal form. 227/10178 useless extension candidates. Maximal degree in co-relation 58902. Up to 3498 conditions per place. [2023-08-28 18:09:11,373 INFO L137 encePairwiseOnDemand]: 213/221 looper letters, 142 selfloop transitions, 51 changer transitions 2/364 dead transitions. [2023-08-28 18:09:11,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 364 transitions, 6958 flow [2023-08-28 18:09:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-28 18:09:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-28 18:09:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 787 transitions. [2023-08-28 18:09:11,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5935143288084465 [2023-08-28 18:09:11,374 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 787 transitions. [2023-08-28 18:09:11,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 787 transitions. [2023-08-28 18:09:11,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:09:11,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 787 transitions. [2023-08-28 18:09:11,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:11,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:11,384 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 221.0) internal successors, (1547), 7 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:11,385 INFO L175 Difference]: Start difference. First operand has 308 places, 385 transitions, 6966 flow. Second operand 6 states and 787 transitions. [2023-08-28 18:09:11,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 364 transitions, 6958 flow [2023-08-28 18:09:12,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 364 transitions, 6453 flow, removed 57 selfloop flow, removed 23 redundant places. [2023-08-28 18:09:12,135 INFO L231 Difference]: Finished difference. Result has 285 places, 330 transitions, 5978 flow [2023-08-28 18:09:12,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=5833, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5978, PETRI_PLACES=285, PETRI_TRANSITIONS=330} [2023-08-28 18:09:12,135 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 196 predicate places. [2023-08-28 18:09:12,136 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 330 transitions, 5978 flow [2023-08-28 18:09:12,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:09:12,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:09:12,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:09:12,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-28 18:09:12,136 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-28 18:09:12,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:09:12,137 INFO L85 PathProgramCache]: Analyzing trace with hash -879575561, now seen corresponding path program 1 times [2023-08-28 18:09:12,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:09:12,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870273996] [2023-08-28 18:09:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:09:12,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:09:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:09:12,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 18:09:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:09:12,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 18:09:12,182 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 18:09:12,182 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-08-28 18:09:12,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-08-28 18:09:12,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-08-28 18:09:12,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-08-28 18:09:12,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-08-28 18:09:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-08-28 18:09:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-08-28 18:09:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-08-28 18:09:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-08-28 18:09:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-08-28 18:09:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-08-28 18:09:12,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-08-28 18:09:12,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-08-28 18:09:12,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-08-28 18:09:12,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-28 18:09:12,190 INFO L445 BasicCegarLoop]: Path program histogram: [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:09:12,191 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-28 18:09:12,194 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 18:09:12,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 18:09:12,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 06:09:12 BasicIcfg [2023-08-28 18:09:12,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 18:09:12,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 18:09:12,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 18:09:12,225 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 18:09:12,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:25" (3/4) ... [2023-08-28 18:09:12,227 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 18:09:12,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 18:09:12,227 INFO L158 Benchmark]: Toolchain (without parser) took 107660.23ms. Allocated memory was 69.2MB in the beginning and 13.3GB in the end (delta: 13.3GB). Free memory was 43.4MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 6.3GB. Max. memory is 16.1GB. [2023-08-28 18:09:12,227 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:09:12,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.03ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 43.4MB in the beginning and 81.4MB in the end (delta: -38.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-08-28 18:09:12,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.07ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 78.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 18:09:12,228 INFO L158 Benchmark]: Boogie Preprocessor took 42.96ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 76.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 18:09:12,228 INFO L158 Benchmark]: RCFGBuilder took 601.07ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 77.7MB in the end (delta: -1.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-08-28 18:09:12,228 INFO L158 Benchmark]: TraceAbstraction took 106552.25ms. Allocated memory was 104.9MB in the beginning and 13.3GB in the end (delta: 13.2GB). Free memory was 76.9MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 6.3GB. Max. memory is 16.1GB. [2023-08-28 18:09:12,229 INFO L158 Benchmark]: Witness Printer took 2.28ms. Allocated memory is still 13.3GB. Free memory is still 7.0GB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:09:12,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.03ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 43.4MB in the beginning and 81.4MB in the end (delta: -38.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.07ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 78.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.96ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 76.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.07ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 77.7MB in the end (delta: -1.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * TraceAbstraction took 106552.25ms. Allocated memory was 104.9MB in the beginning and 13.3GB in the end (delta: 13.2GB). Free memory was 76.9MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 6.3GB. Max. memory is 16.1GB. * Witness Printer took 2.28ms. Allocated memory is still 13.3GB. Free memory is still 7.0GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 146 PlacesBefore, 89 PlacesAfterwards, 150 TransitionsBefore, 92 TransitionsAfterwards, 9006 CoEnabledTransitionPairs, 4 FixpointIterations, 12 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 38196 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11949, independent: 11266, independent conditional: 0, independent unconditional: 11266, dependent: 683, dependent conditional: 0, dependent unconditional: 683, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4132, independent: 4007, independent conditional: 0, independent unconditional: 4007, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11949, independent: 7259, independent conditional: 0, independent unconditional: 7259, dependent: 558, dependent conditional: 0, dependent unconditional: 558, unknown: 4132, unknown conditional: 0, unknown unconditional: 4132] , Statistics on independence cache: Total cache size (in pairs): 1097, Positive cache size: 1008, Positive conditional cache size: 0, Positive unconditional cache size: 1008, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 701]: Data race detected Data race detected The following path leads to a data race: [L689] 0 volatile unsigned s = 0; [L690] 0 volatile unsigned t = 0; [L697] 0 unsigned c = 0; [L708] 0 pthread_t t; VAL [c=0, s=0, t=0, t={6:0}] [L709] COND TRUE 0 __VERIFIER_nondet_int() [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [c=0, pthread_create(&t, 0, thr1, 0)=-1, s=0, t=0, t={6:0}] [L709] COND FALSE 0 !(__VERIFIER_nondet_int()) [L710] CALL 0 thr1(0) [L700] 0 unsigned l; VAL [arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={7:0}, s=0, t=0] [L701] CALL 0 __VERIFIER_atomic_fetch_and_inc(&l) [L693] EXPR 0 t != -1 [L693] CALL 0 assume_abort_if_not(t != -1) [L3] COND FALSE 0 !(!cond) [L693] RET 0 assume_abort_if_not(t != -1) [L694] 0 *l = t [L695] EXPR 0 t + 1 [L695] 0 t = t + 1 [L701] RET 0 __VERIFIER_atomic_fetch_and_inc(&l) [L701] EXPR 0 \read(l) VAL [\read(l)=0, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={7:0}, s=0, t=1] [L701] 0 l != s VAL [\read(l)=0, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={7:0}, s=0, t=1] [L701] COND FALSE 0 !(l != s) [L702] 0 c = 1 [L702] EXPR 0 c == 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, c=1, l={7:0}, s=0, t=1] [L702] COND FALSE 0 !(!(c == 1)) VAL [arg={0:0}, arg={0:0}, arg={0:0}, c=1, l={7:0}, s=0, t=1] [L702] 0 c = 0 [L703] 0 s++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={7:0}, s=0, t=1] [L700] 1 unsigned l; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={5:0}, l={7:0}, s=0, t=1] [L701] CALL 1 __VERIFIER_atomic_fetch_and_inc(&l) [L693] EXPR 1 t != -1 [L693] CALL 1 assume_abort_if_not(t != -1) [L3] COND FALSE 1 !(!cond) [L693] RET 1 assume_abort_if_not(t != -1) [L694] 1 *l = t [L695] EXPR 1 t + 1 [L695] 1 t = t + 1 [L701] RET 1 __VERIFIER_atomic_fetch_and_inc(&l) [L703] 0 s++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={5:0}, l={7:0}, s++=0, s=1, t=2] [L701] EXPR 1 \read(l) VAL [\read(l)=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={5:0}, l={7:0}, s++=0, s=1, t=2] [L701] 1 l != s VAL [\read(l)=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={5:0}, l={7:0}, s++=0, s=1, t=2] [L703] 0 s++ VAL [\read(l)=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={5:0}, l={7:0}, s++=0, s++=51, s=1, t=2] [L701] 1 l != s VAL [\read(l)=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, c=0, l={5:0}, l={7:0}, s++=0, s++=51, s=1, t=2] Now there is a data race on ~s~0 between C: s++ [703] and C: l != s [701] - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 199 locations, 37 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 106.4s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 100.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3742 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2945 mSDsluCounter, 1050 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 776 mSDsCounter, 758 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10531 IncrementalHoareTripleChecker+Invalid, 11289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 758 mSolverCounterUnsat, 274 mSDtfsCounter, 10531 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18516occurred in iteration=21, InterpolantAutomatonStates: 175, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 2980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-28 18:09:12,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE