./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/goblint-regression/09-regions_17-arrayloop_nr.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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:51:50,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:51:50,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:51:50,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:51:50,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:51:50,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:51:50,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:51:50,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:51:50,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:51:50,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:51:50,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:51:50,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:51:50,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:51:50,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:51:50,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:51:50,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:51:50,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:51:50,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:51:50,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:51:50,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:51:50,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:51:50,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:51:50,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:51:50,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:51:50,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:51:51,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:51:51,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:51:51,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:51:51,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:51:51,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:51:51,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:51:51,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:51:51,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:51:51,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:51:51,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:51:51,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:51:51,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:51:51,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:51:51,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:51:51,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:51:51,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:51:51,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:51:51,041 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:51:51,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:51:51,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:51:51,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:51:51,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:51:51,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:51:51,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:51:51,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:51:51,044 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:51:51,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:51:51,045 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:51:51,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:51:51,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:51:51,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:51:51,046 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:51:51,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:51:51,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:51:51,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:51:51,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:51:51,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:51:51,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:51:51,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:51:51,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:51:51,048 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:51:51,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:51:51,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:51:51,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:51:51,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:51:51,276 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:51:51,276 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:51:51,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-29 17:51:52,148 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:51:52,377 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:51:52,379 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-29 17:51:52,394 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5515241d/b3d3dd5319db45e6888e541caaa7f5a1/FLAGeca9352d0 [2023-08-29 17:51:52,407 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5515241d/b3d3dd5319db45e6888e541caaa7f5a1 [2023-08-29 17:51:52,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:51:52,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:51:52,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:51:52,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:51:52,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:51:52,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:51:52" (1/1) ... [2023-08-29 17:51:52,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f2ca843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:52, skipping insertion in model container [2023-08-29 17:51:52,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:51:52" (1/1) ... [2023-08-29 17:51:52,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:51:52,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:51:52,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:51:52,958 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:51:53,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:51:53,061 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:51:53,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53 WrapperNode [2023-08-29 17:51:53,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:51:53,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:51:53,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:51:53,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:51:53,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,130 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-08-29 17:51:53,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:51:53,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:51:53,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:51:53,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:51:53,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:51:53,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:51:53,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:51:53,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:51:53,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (1/1) ... [2023-08-29 17:51:53,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:51:53,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:51:53,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 17:51:53,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:51:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:51:53,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:51:53,245 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 17:51:53,382 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:51:53,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:51:53,739 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:51:53,747 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:51:53,747 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 17:51:53,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:51:53 BoogieIcfgContainer [2023-08-29 17:51:53,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:51:53,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:51:53,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:51:53,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:51:53,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:51:52" (1/3) ... [2023-08-29 17:51:53,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663968cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:51:53, skipping insertion in model container [2023-08-29 17:51:53,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:51:53" (2/3) ... [2023-08-29 17:51:53,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663968cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:51:53, skipping insertion in model container [2023-08-29 17:51:53,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:51:53" (3/3) ... [2023-08-29 17:51:53,755 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2023-08-29 17:51:53,760 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:51:53,765 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:51:53,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 17:51:53,766 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:51:53,845 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:51:53,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 255 transitions, 515 flow [2023-08-29 17:51:53,961 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2023-08-29 17:51:53,961 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:51:53,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-29 17:51:53,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 255 transitions, 515 flow [2023-08-29 17:51:53,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 254 transitions, 511 flow [2023-08-29 17:51:53,979 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:51:53,988 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-29 17:51:53,991 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-29 17:51:53,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 511 flow [2023-08-29 17:51:54,040 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2023-08-29 17:51:54,040 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:51:54,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-29 17:51:54,051 INFO L119 LiptonReduction]: Number of co-enabled transitions 17820 [2023-08-29 17:52:06,875 INFO L134 LiptonReduction]: Checked pairs total: 108171 [2023-08-29 17:52:06,876 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-08-29 17:52:06,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:52:06,888 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;@16accc02, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:52:06,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-29 17:52:06,890 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-29 17:52:06,890 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:52:06,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:06,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 17:52:06,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:06,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:06,894 INFO L85 PathProgramCache]: Analyzing trace with hash 25566, now seen corresponding path program 1 times [2023-08-29 17:52:06,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:06,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825116067] [2023-08-29 17:52:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:06,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:06,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:06,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:06,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825116067] [2023-08-29 17:52:06,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825116067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:06,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:06,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 17:52:06,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274482431] [2023-08-29 17:52:06,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:06,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:52:07,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:07,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:52:07,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:52:07,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 402 [2023-08-29 17:52:07,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 247 flow. Second operand has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:07,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 402 [2023-08-29 17:52:07,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:07,220 INFO L130 PetriNetUnfolder]: 376/1700 cut-off events. [2023-08-29 17:52:07,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:52:07,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1700 events. 376/1700 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10916 event pairs, 336 based on Foata normal form. 0/1615 useless extension candidates. Maximal degree in co-relation 2444. Up to 753 conditions per place. [2023-08-29 17:52:07,226 INFO L137 encePairwiseOnDemand]: 399/402 looper letters, 43 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-29 17:52:07,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 327 flow [2023-08-29 17:52:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:52:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:52:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 548 transitions. [2023-08-29 17:52:07,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.681592039800995 [2023-08-29 17:52:07,236 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 548 transitions. [2023-08-29 17:52:07,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 548 transitions. [2023-08-29 17:52:07,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:07,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 548 transitions. [2023-08-29 17:52:07,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,252 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,253 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 247 flow. Second operand 2 states and 548 transitions. [2023-08-29 17:52:07,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 327 flow [2023-08-29 17:52:07,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:52:07,258 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 240 flow [2023-08-29 17:52:07,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2023-08-29 17:52:07,262 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2023-08-29 17:52:07,263 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 240 flow [2023-08-29 17:52:07,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:07,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:07,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:52:07,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:07,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1621363482, now seen corresponding path program 1 times [2023-08-29 17:52:07,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:07,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673388702] [2023-08-29 17:52:07,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:07,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:07,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673388702] [2023-08-29 17:52:07,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673388702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:07,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:07,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:52:07,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354352791] [2023-08-29 17:52:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:07,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:52:07,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:52:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:52:07,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 402 [2023-08-29 17:52:07,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:07,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 402 [2023-08-29 17:52:07,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:07,829 INFO L130 PetriNetUnfolder]: 716/3057 cut-off events. [2023-08-29 17:52:07,829 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:52:07,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 3057 events. 716/3057 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 20536 event pairs, 336 based on Foata normal form. 0/2921 useless extension candidates. Maximal degree in co-relation 4492. Up to 753 conditions per place. [2023-08-29 17:52:07,838 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 77 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2023-08-29 17:52:07,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 157 transitions, 478 flow [2023-08-29 17:52:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:52:07,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:52:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 17:52:07,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6733001658374793 [2023-08-29 17:52:07,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 17:52:07,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 17:52:07,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:07,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 17:52:07,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,845 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 240 flow. Second operand 3 states and 812 transitions. [2023-08-29 17:52:07,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 157 transitions, 478 flow [2023-08-29 17:52:07,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 157 transitions, 478 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:07,848 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 264 flow [2023-08-29 17:52:07,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-08-29 17:52:07,848 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2023-08-29 17:52:07,849 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 264 flow [2023-08-29 17:52:07,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:07,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:07,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:07,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:52:07,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:07,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:07,850 INFO L85 PathProgramCache]: Analyzing trace with hash -621239689, now seen corresponding path program 1 times [2023-08-29 17:52:07,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:07,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927328957] [2023-08-29 17:52:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:07,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:07,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:07,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927328957] [2023-08-29 17:52:07,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927328957] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:52:07,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108941529] [2023-08-29 17:52:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:07,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:52:07,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:52:07,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:52:07,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 17:52:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:08,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:52:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:52:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:08,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:52:08,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:08,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108941529] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:52:08,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:52:08,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 17:52:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779855373] [2023-08-29 17:52:08,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:52:08,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:52:08,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:08,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:52:08,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:52:08,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 402 [2023-08-29 17:52:08,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:08,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:08,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 402 [2023-08-29 17:52:08,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:09,277 INFO L130 PetriNetUnfolder]: 1413/6102 cut-off events. [2023-08-29 17:52:09,278 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-08-29 17:52:09,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9066 conditions, 6102 events. 1413/6102 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 41949 event pairs, 229 based on Foata normal form. 51/5965 useless extension candidates. Maximal degree in co-relation 9061. Up to 698 conditions per place. [2023-08-29 17:52:09,294 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 165 selfloop transitions, 11 changer transitions 0/252 dead transitions. [2023-08-29 17:52:09,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 252 transitions, 888 flow [2023-08-29 17:52:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:52:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:52:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1628 transitions. [2023-08-29 17:52:09,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6749585406301825 [2023-08-29 17:52:09,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1628 transitions. [2023-08-29 17:52:09,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1628 transitions. [2023-08-29 17:52:09,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:09,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1628 transitions. [2023-08-29 17:52:09,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:09,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:09,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:09,305 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 264 flow. Second operand 6 states and 1628 transitions. [2023-08-29 17:52:09,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 252 transitions, 888 flow [2023-08-29 17:52:09,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 252 transitions, 884 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:52:09,309 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 338 flow [2023-08-29 17:52:09,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2023-08-29 17:52:09,311 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2023-08-29 17:52:09,311 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 338 flow [2023-08-29 17:52:09,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:09,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:09,312 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:09,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 17:52:09,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:52:09,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:09,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:09,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1665303974, now seen corresponding path program 2 times [2023-08-29 17:52:09,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:09,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608953434] [2023-08-29 17:52:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:09,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:09,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608953434] [2023-08-29 17:52:09,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608953434] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:52:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214905468] [2023-08-29 17:52:09,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 17:52:09,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:52:09,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:52:09,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:52:09,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 17:52:09,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 17:52:09,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 17:52:09,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 17:52:09,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:52:09,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 17:52:09,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 17:52:09,940 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 17:52:09,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 17:52:09,970 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 17:52:09,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 17:52:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 17:52:09,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:52:09,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214905468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:09,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:52:09,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2023-08-29 17:52:09,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741225513] [2023-08-29 17:52:09,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:09,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 17:52:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:09,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 17:52:09,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:52:10,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 402 [2023-08-29 17:52:10,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 178.85714285714286) internal successors, (1252), 7 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:10,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:10,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 402 [2023-08-29 17:52:10,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:12,667 INFO L130 PetriNetUnfolder]: 9007/20807 cut-off events. [2023-08-29 17:52:12,667 INFO L131 PetriNetUnfolder]: For 1582/1582 co-relation queries the response was YES. [2023-08-29 17:52:12,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39843 conditions, 20807 events. 9007/20807 cut-off events. For 1582/1582 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 139638 event pairs, 708 based on Foata normal form. 0/19912 useless extension candidates. Maximal degree in co-relation 39835. Up to 15146 conditions per place. [2023-08-29 17:52:12,743 INFO L137 encePairwiseOnDemand]: 358/402 looper letters, 253 selfloop transitions, 151 changer transitions 0/428 dead transitions. [2023-08-29 17:52:12,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 428 transitions, 1958 flow [2023-08-29 17:52:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 17:52:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 17:52:12,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1616 transitions. [2023-08-29 17:52:12,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.574271499644634 [2023-08-29 17:52:12,747 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1616 transitions. [2023-08-29 17:52:12,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1616 transitions. [2023-08-29 17:52:12,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:12,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1616 transitions. [2023-08-29 17:52:12,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 230.85714285714286) internal successors, (1616), 7 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:12,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:12,755 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:12,755 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 338 flow. Second operand 7 states and 1616 transitions. [2023-08-29 17:52:12,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 428 transitions, 1958 flow [2023-08-29 17:52:12,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 428 transitions, 1902 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-29 17:52:12,768 INFO L231 Difference]: Finished difference. Result has 141 places, 312 transitions, 1450 flow [2023-08-29 17:52:12,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1450, PETRI_PLACES=141, PETRI_TRANSITIONS=312} [2023-08-29 17:52:12,769 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 18 predicate places. [2023-08-29 17:52:12,769 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 312 transitions, 1450 flow [2023-08-29 17:52:12,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 178.85714285714286) internal successors, (1252), 7 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:12,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:12,770 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:12,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 17:52:12,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-29 17:52:12,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:12,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1104611333, now seen corresponding path program 1 times [2023-08-29 17:52:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464316933] [2023-08-29 17:52:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:12,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:13,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464316933] [2023-08-29 17:52:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464316933] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:52:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219098292] [2023-08-29 17:52:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:13,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:52:13,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:52:13,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:52:13,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 17:52:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:13,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 17:52:13,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:52:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:13,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:52:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219098292] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:52:13,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:52:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-29 17:52:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369107866] [2023-08-29 17:52:13,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:52:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:52:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:52:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:52:13,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 402 [2023-08-29 17:52:13,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 312 transitions, 1450 flow. Second operand has 12 states, 12 states have (on average 242.5) internal successors, (2910), 12 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:13,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:13,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 402 [2023-08-29 17:52:13,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:18,463 INFO L130 PetriNetUnfolder]: 6709/23554 cut-off events. [2023-08-29 17:52:18,463 INFO L131 PetriNetUnfolder]: For 5839/6096 co-relation queries the response was YES. [2023-08-29 17:52:18,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51687 conditions, 23554 events. 6709/23554 cut-off events. For 5839/6096 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 171636 event pairs, 282 based on Foata normal form. 163/23291 useless extension candidates. Maximal degree in co-relation 51673. Up to 9167 conditions per place. [2023-08-29 17:52:18,555 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 553 selfloop transitions, 23 changer transitions 0/820 dead transitions. [2023-08-29 17:52:18,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 820 transitions, 4376 flow [2023-08-29 17:52:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:52:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:52:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3308 transitions. [2023-08-29 17:52:18,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.685737976782753 [2023-08-29 17:52:18,561 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3308 transitions. [2023-08-29 17:52:18,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3308 transitions. [2023-08-29 17:52:18,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:18,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3308 transitions. [2023-08-29 17:52:18,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 275.6666666666667) internal successors, (3308), 12 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:18,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:18,573 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:18,573 INFO L175 Difference]: Start difference. First operand has 141 places, 312 transitions, 1450 flow. Second operand 12 states and 3308 transitions. [2023-08-29 17:52:18,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 820 transitions, 4376 flow [2023-08-29 17:52:18,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 820 transitions, 4376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:18,649 INFO L231 Difference]: Finished difference. Result has 159 places, 325 transitions, 1632 flow [2023-08-29 17:52:18,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1632, PETRI_PLACES=159, PETRI_TRANSITIONS=325} [2023-08-29 17:52:18,650 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 36 predicate places. [2023-08-29 17:52:18,650 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 325 transitions, 1632 flow [2023-08-29 17:52:18,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 242.5) internal successors, (2910), 12 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:18,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:18,651 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:18,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 17:52:18,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:52:18,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:18,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:18,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2058752731, now seen corresponding path program 2 times [2023-08-29 17:52:18,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:18,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514757454] [2023-08-29 17:52:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:18,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:52:19,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:19,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514757454] [2023-08-29 17:52:19,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514757454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:19,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:19,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:52:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025353237] [2023-08-29 17:52:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:52:19,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:52:19,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:52:19,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 402 [2023-08-29 17:52:19,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 325 transitions, 1632 flow. Second operand has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:19,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:19,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 402 [2023-08-29 17:52:19,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:29,454 INFO L130 PetriNetUnfolder]: 24557/55220 cut-off events. [2023-08-29 17:52:29,454 INFO L131 PetriNetUnfolder]: For 19804/20050 co-relation queries the response was YES. [2023-08-29 17:52:29,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136541 conditions, 55220 events. 24557/55220 cut-off events. For 19804/20050 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 371076 event pairs, 7520 based on Foata normal form. 0/54245 useless extension candidates. Maximal degree in co-relation 136520. Up to 47529 conditions per place. [2023-08-29 17:52:29,709 INFO L137 encePairwiseOnDemand]: 372/402 looper letters, 339 selfloop transitions, 109 changer transitions 0/492 dead transitions. [2023-08-29 17:52:29,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 492 transitions, 2954 flow [2023-08-29 17:52:29,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:52:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:52:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1306 transitions. [2023-08-29 17:52:29,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5414593698175788 [2023-08-29 17:52:29,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1306 transitions. [2023-08-29 17:52:29,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1306 transitions. [2023-08-29 17:52:29,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:29,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1306 transitions. [2023-08-29 17:52:29,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 217.66666666666666) internal successors, (1306), 6 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:29,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:29,722 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:29,722 INFO L175 Difference]: Start difference. First operand has 159 places, 325 transitions, 1632 flow. Second operand 6 states and 1306 transitions. [2023-08-29 17:52:29,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 492 transitions, 2954 flow [2023-08-29 17:52:29,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 492 transitions, 2928 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-29 17:52:29,858 INFO L231 Difference]: Finished difference. Result has 165 places, 428 transitions, 2261 flow [2023-08-29 17:52:29,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2261, PETRI_PLACES=165, PETRI_TRANSITIONS=428} [2023-08-29 17:52:29,859 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 42 predicate places. [2023-08-29 17:52:29,859 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 428 transitions, 2261 flow [2023-08-29 17:52:29,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:29,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:29,860 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:29,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:52:29,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:29,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:29,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1375590774, now seen corresponding path program 1 times [2023-08-29 17:52:29,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:29,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037063055] [2023-08-29 17:52:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:29,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:52:30,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:30,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037063055] [2023-08-29 17:52:30,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037063055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:30,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:30,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:30,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506045019] [2023-08-29 17:52:30,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:30,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:52:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:30,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:52:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:52:31,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:52:31,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 428 transitions, 2261 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:31,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:31,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:52:31,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:50,858 INFO L130 PetriNetUnfolder]: 46463/104592 cut-off events. [2023-08-29 17:52:50,858 INFO L131 PetriNetUnfolder]: For 55104/55624 co-relation queries the response was YES. [2023-08-29 17:52:51,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296858 conditions, 104592 events. 46463/104592 cut-off events. For 55104/55624 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 812348 event pairs, 2415 based on Foata normal form. 190/102591 useless extension candidates. Maximal degree in co-relation 296832. Up to 42920 conditions per place. [2023-08-29 17:52:51,417 INFO L137 encePairwiseOnDemand]: 364/402 looper letters, 855 selfloop transitions, 157 changer transitions 1/1053 dead transitions. [2023-08-29 17:52:51,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1053 transitions, 7657 flow [2023-08-29 17:52:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:52:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:52:51,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2767 transitions. [2023-08-29 17:52:51,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294680443934175 [2023-08-29 17:52:51,423 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2767 transitions. [2023-08-29 17:52:51,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2767 transitions. [2023-08-29 17:52:51,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:51,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2767 transitions. [2023-08-29 17:52:51,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 212.84615384615384) internal successors, (2767), 13 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:51,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:51,436 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:51,436 INFO L175 Difference]: Start difference. First operand has 165 places, 428 transitions, 2261 flow. Second operand 13 states and 2767 transitions. [2023-08-29 17:52:51,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1053 transitions, 7657 flow [2023-08-29 17:52:52,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 1053 transitions, 7585 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:52,407 INFO L231 Difference]: Finished difference. Result has 188 places, 585 transitions, 4179 flow [2023-08-29 17:52:52,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4179, PETRI_PLACES=188, PETRI_TRANSITIONS=585} [2023-08-29 17:52:52,408 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 65 predicate places. [2023-08-29 17:52:52,408 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 585 transitions, 4179 flow [2023-08-29 17:52:52,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:52,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:52,409 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:52,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:52:52,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:52:52,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash 869726804, now seen corresponding path program 2 times [2023-08-29 17:52:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:52,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113849881] [2023-08-29 17:52:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:52:53,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:53,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113849881] [2023-08-29 17:52:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113849881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909281567] [2023-08-29 17:52:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:52:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:52:53,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:52:53,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:52:53,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 585 transitions, 4179 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:53,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:53,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:52:53,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:16,539 INFO L130 PetriNetUnfolder]: 46323/104382 cut-off events. [2023-08-29 17:53:16,539 INFO L131 PetriNetUnfolder]: For 98994/99564 co-relation queries the response was YES. [2023-08-29 17:53:16,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321478 conditions, 104382 events. 46323/104382 cut-off events. For 98994/99564 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 809977 event pairs, 3784 based on Foata normal form. 110/102451 useless extension candidates. Maximal degree in co-relation 321440. Up to 49188 conditions per place. [2023-08-29 17:53:17,148 INFO L137 encePairwiseOnDemand]: 362/402 looper letters, 838 selfloop transitions, 168 changer transitions 2/1048 dead transitions. [2023-08-29 17:53:17,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 1048 transitions, 8698 flow [2023-08-29 17:53:17,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:53:17,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:53:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2895 transitions. [2023-08-29 17:53:17,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143923240938166 [2023-08-29 17:53:17,153 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2895 transitions. [2023-08-29 17:53:17,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2895 transitions. [2023-08-29 17:53:17,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:17,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2895 transitions. [2023-08-29 17:53:17,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.78571428571428) internal successors, (2895), 14 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:17,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:17,164 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:17,164 INFO L175 Difference]: Start difference. First operand has 188 places, 585 transitions, 4179 flow. Second operand 14 states and 2895 transitions. [2023-08-29 17:53:17,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 1048 transitions, 8698 flow [2023-08-29 17:53:20,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 1048 transitions, 8698 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:53:20,200 INFO L231 Difference]: Finished difference. Result has 211 places, 628 transitions, 5307 flow [2023-08-29 17:53:20,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4179, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5307, PETRI_PLACES=211, PETRI_TRANSITIONS=628} [2023-08-29 17:53:20,201 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 88 predicate places. [2023-08-29 17:53:20,201 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 628 transitions, 5307 flow [2023-08-29 17:53:20,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:20,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:20,202 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:20,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:53:20,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:53:20,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash -367352326, now seen corresponding path program 1 times [2023-08-29 17:53:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609188444] [2023-08-29 17:53:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:53:20,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:20,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609188444] [2023-08-29 17:53:20,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609188444] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:20,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:20,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:53:20,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405962008] [2023-08-29 17:53:20,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:20,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:53:20,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:20,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:53:20,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:53:21,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:53:21,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 628 transitions, 5307 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:21,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:21,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:53:21,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:47,253 INFO L130 PetriNetUnfolder]: 47457/107302 cut-off events. [2023-08-29 17:53:47,254 INFO L131 PetriNetUnfolder]: For 150672/152572 co-relation queries the response was YES. [2023-08-29 17:53:47,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347243 conditions, 107302 events. 47457/107302 cut-off events. For 150672/152572 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 827911 event pairs, 21775 based on Foata normal form. 22/105462 useless extension candidates. Maximal degree in co-relation 347194. Up to 90415 conditions per place. [2023-08-29 17:53:48,010 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 561 selfloop transitions, 154 changer transitions 1/760 dead transitions. [2023-08-29 17:53:48,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 760 transitions, 7379 flow [2023-08-29 17:53:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:53:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:53:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1687 transitions. [2023-08-29 17:53:48,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5245646766169154 [2023-08-29 17:53:48,025 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1687 transitions. [2023-08-29 17:53:48,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1687 transitions. [2023-08-29 17:53:48,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:48,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1687 transitions. [2023-08-29 17:53:48,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 210.875) internal successors, (1687), 8 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:48,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:48,036 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:48,036 INFO L175 Difference]: Start difference. First operand has 211 places, 628 transitions, 5307 flow. Second operand 8 states and 1687 transitions. [2023-08-29 17:53:48,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 760 transitions, 7379 flow [2023-08-29 17:53:51,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 760 transitions, 6891 flow, removed 175 selfloop flow, removed 1 redundant places. [2023-08-29 17:53:51,835 INFO L231 Difference]: Finished difference. Result has 219 places, 633 transitions, 5248 flow [2023-08-29 17:53:51,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4853, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5248, PETRI_PLACES=219, PETRI_TRANSITIONS=633} [2023-08-29 17:53:51,836 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 96 predicate places. [2023-08-29 17:53:51,836 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 633 transitions, 5248 flow [2023-08-29 17:53:51,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:51,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:51,837 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:51,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:53:51,837 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:53:51,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:51,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1605052882, now seen corresponding path program 2 times [2023-08-29 17:53:51,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:51,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269449721] [2023-08-29 17:53:51,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:51,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:53:52,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:52,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269449721] [2023-08-29 17:53:52,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269449721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:52,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:52,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:53:52,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566176949] [2023-08-29 17:53:52,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:52,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:53:52,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:52,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:53:52,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:53:53,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:53:53,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 633 transitions, 5248 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:53,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:53,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:53:53,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:17,143 INFO L130 PetriNetUnfolder]: 48267/109286 cut-off events. [2023-08-29 17:54:17,143 INFO L131 PetriNetUnfolder]: For 130885/132835 co-relation queries the response was YES. [2023-08-29 17:54:17,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357276 conditions, 109286 events. 48267/109286 cut-off events. For 130885/132835 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 852859 event pairs, 2908 based on Foata normal form. 80/107473 useless extension candidates. Maximal degree in co-relation 357225. Up to 49677 conditions per place. [2023-08-29 17:54:18,024 INFO L137 encePairwiseOnDemand]: 375/402 looper letters, 863 selfloop transitions, 123 changer transitions 2/1032 dead transitions. [2023-08-29 17:54:18,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1032 transitions, 9509 flow [2023-08-29 17:54:18,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:54:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:54:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2136 transitions. [2023-08-29 17:54:18,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5313432835820896 [2023-08-29 17:54:18,028 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2136 transitions. [2023-08-29 17:54:18,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2136 transitions. [2023-08-29 17:54:18,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:18,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2136 transitions. [2023-08-29 17:54:18,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 213.6) internal successors, (2136), 10 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:18,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:18,035 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:18,035 INFO L175 Difference]: Start difference. First operand has 219 places, 633 transitions, 5248 flow. Second operand 10 states and 2136 transitions. [2023-08-29 17:54:18,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1032 transitions, 9509 flow [2023-08-29 17:54:21,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 1032 transitions, 9067 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 17:54:21,517 INFO L231 Difference]: Finished difference. Result has 229 places, 735 transitions, 6274 flow [2023-08-29 17:54:21,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4979, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6274, PETRI_PLACES=229, PETRI_TRANSITIONS=735} [2023-08-29 17:54:21,518 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 106 predicate places. [2023-08-29 17:54:21,518 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 735 transitions, 6274 flow [2023-08-29 17:54:21,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:21,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:54:21,518 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:54:21,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:54:21,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:54:21,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:54:21,519 INFO L85 PathProgramCache]: Analyzing trace with hash 11992814, now seen corresponding path program 3 times [2023-08-29 17:54:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:54:21,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500533926] [2023-08-29 17:54:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:54:21,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:54:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:54:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:54:22,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:54:22,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500533926] [2023-08-29 17:54:22,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500533926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:54:22,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:54:22,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:54:22,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474022628] [2023-08-29 17:54:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:54:22,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:54:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:54:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:54:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:54:22,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:54:22,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 735 transitions, 6274 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:22,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:54:22,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:54:22,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:50,892 INFO L130 PetriNetUnfolder]: 48607/109682 cut-off events. [2023-08-29 17:54:50,892 INFO L131 PetriNetUnfolder]: For 180708/182658 co-relation queries the response was YES. [2023-08-29 17:54:51,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375299 conditions, 109682 events. 48607/109682 cut-off events. For 180708/182658 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 847401 event pairs, 21815 based on Foata normal form. 42/107862 useless extension candidates. Maximal degree in co-relation 375242. Up to 92035 conditions per place. [2023-08-29 17:54:51,884 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 598 selfloop transitions, 243 changer transitions 1/886 dead transitions. [2023-08-29 17:54:51,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 886 transitions, 8732 flow [2023-08-29 17:54:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:54:51,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:54:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1874 transitions. [2023-08-29 17:54:51,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179657269209508 [2023-08-29 17:54:51,887 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1874 transitions. [2023-08-29 17:54:51,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1874 transitions. [2023-08-29 17:54:51,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:51,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1874 transitions. [2023-08-29 17:54:51,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 208.22222222222223) internal successors, (1874), 9 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:51,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:51,893 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:51,893 INFO L175 Difference]: Start difference. First operand has 229 places, 735 transitions, 6274 flow. Second operand 9 states and 1874 transitions. [2023-08-29 17:54:51,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 886 transitions, 8732 flow [2023-08-29 17:54:56,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 886 transitions, 8710 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-29 17:54:56,084 INFO L231 Difference]: Finished difference. Result has 239 places, 748 transitions, 7040 flow [2023-08-29 17:54:56,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7040, PETRI_PLACES=239, PETRI_TRANSITIONS=748} [2023-08-29 17:54:56,085 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 116 predicate places. [2023-08-29 17:54:56,085 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 748 transitions, 7040 flow [2023-08-29 17:54:56,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:56,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:54:56,086 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:54:56,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:54:56,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:54:56,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:54:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash -800353708, now seen corresponding path program 3 times [2023-08-29 17:54:56,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:54:56,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812768737] [2023-08-29 17:54:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:54:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:54:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:54:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:54:56,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:54:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812768737] [2023-08-29 17:54:56,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812768737] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:54:56,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:54:56,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:54:56,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037459355] [2023-08-29 17:54:56,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:54:56,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:54:56,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:54:56,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:54:56,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:54:57,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:54:57,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 748 transitions, 7040 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:57,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:54:57,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:54:57,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:55:24,259 INFO L130 PetriNetUnfolder]: 47559/107625 cut-off events. [2023-08-29 17:55:24,259 INFO L131 PetriNetUnfolder]: For 224048/225798 co-relation queries the response was YES. [2023-08-29 17:55:24,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383656 conditions, 107625 events. 47559/107625 cut-off events. For 224048/225798 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 832556 event pairs, 16377 based on Foata normal form. 160/105504 useless extension candidates. Maximal degree in co-relation 383595. Up to 82853 conditions per place. [2023-08-29 17:55:25,387 INFO L137 encePairwiseOnDemand]: 356/402 looper letters, 587 selfloop transitions, 335 changer transitions 0/962 dead transitions. [2023-08-29 17:55:25,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 962 transitions, 10163 flow [2023-08-29 17:55:25,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:55:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:55:25,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1973 transitions. [2023-08-29 17:55:25,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5453289110005528 [2023-08-29 17:55:25,390 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1973 transitions. [2023-08-29 17:55:25,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1973 transitions. [2023-08-29 17:55:25,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:55:25,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1973 transitions. [2023-08-29 17:55:25,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 219.22222222222223) internal successors, (1973), 9 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:55:25,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:55:25,395 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:55:25,395 INFO L175 Difference]: Start difference. First operand has 239 places, 748 transitions, 7040 flow. Second operand 9 states and 1973 transitions. [2023-08-29 17:55:25,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 962 transitions, 10163 flow [2023-08-29 17:55:30,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 962 transitions, 9760 flow, removed 16 selfloop flow, removed 4 redundant places. [2023-08-29 17:55:30,774 INFO L231 Difference]: Finished difference. Result has 246 places, 757 transitions, 7508 flow [2023-08-29 17:55:30,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6656, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7508, PETRI_PLACES=246, PETRI_TRANSITIONS=757} [2023-08-29 17:55:30,775 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 123 predicate places. [2023-08-29 17:55:30,775 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 757 transitions, 7508 flow [2023-08-29 17:55:30,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:55:30,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:55:30,776 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:55:30,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:55:30,776 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:55:30,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:55:30,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1141809094, now seen corresponding path program 4 times [2023-08-29 17:55:30,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:55:30,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690929326] [2023-08-29 17:55:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:55:30,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:55:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:55:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:55:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:55:31,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690929326] [2023-08-29 17:55:31,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690929326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:55:31,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:55:31,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:55:31,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594520378] [2023-08-29 17:55:31,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:55:31,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:55:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:55:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:55:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:55:32,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:55:32,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 757 transitions, 7508 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:55:32,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:55:32,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:55:32,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:56:00,982 INFO L130 PetriNetUnfolder]: 49287/111169 cut-off events. [2023-08-29 17:56:00,983 INFO L131 PetriNetUnfolder]: For 252782/255298 co-relation queries the response was YES. [2023-08-29 17:56:01,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408480 conditions, 111169 events. 49287/111169 cut-off events. For 252782/255298 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 860523 event pairs, 21834 based on Foata normal form. 42/109339 useless extension candidates. Maximal degree in co-relation 408416. Up to 92453 conditions per place. [2023-08-29 17:56:02,239 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 610 selfloop transitions, 250 changer transitions 1/905 dead transitions. [2023-08-29 17:56:02,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 905 transitions, 10253 flow [2023-08-29 17:56:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:56:02,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:56:02,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1641 transitions. [2023-08-29 17:56:02,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5102611940298507 [2023-08-29 17:56:02,242 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1641 transitions. [2023-08-29 17:56:02,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1641 transitions. [2023-08-29 17:56:02,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:56:02,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1641 transitions. [2023-08-29 17:56:02,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 205.125) internal successors, (1641), 8 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:02,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:02,247 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:02,247 INFO L175 Difference]: Start difference. First operand has 246 places, 757 transitions, 7508 flow. Second operand 8 states and 1641 transitions. [2023-08-29 17:56:02,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 905 transitions, 10253 flow [2023-08-29 17:56:07,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 905 transitions, 9887 flow, removed 18 selfloop flow, removed 12 redundant places. [2023-08-29 17:56:07,101 INFO L231 Difference]: Finished difference. Result has 245 places, 779 transitions, 8218 flow [2023-08-29 17:56:07,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=7191, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8218, PETRI_PLACES=245, PETRI_TRANSITIONS=779} [2023-08-29 17:56:07,102 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 122 predicate places. [2023-08-29 17:56:07,102 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 779 transitions, 8218 flow [2023-08-29 17:56:07,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:07,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:56:07,103 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:56:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:56:07,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:56:07,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:56:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash -646516828, now seen corresponding path program 4 times [2023-08-29 17:56:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:56:07,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041743084] [2023-08-29 17:56:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:56:07,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:56:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:56:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:56:07,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:56:07,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041743084] [2023-08-29 17:56:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041743084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:56:07,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:56:07,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:56:07,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565537725] [2023-08-29 17:56:07,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:56:07,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:56:07,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:56:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:56:07,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:56:08,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:56:08,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 779 transitions, 8218 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:08,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:56:08,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:56:08,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:56:36,586 INFO L130 PetriNetUnfolder]: 48535/109795 cut-off events. [2023-08-29 17:56:36,586 INFO L131 PetriNetUnfolder]: For 290197/292491 co-relation queries the response was YES. [2023-08-29 17:56:37,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415673 conditions, 109795 events. 48535/109795 cut-off events. For 290197/292491 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 852398 event pairs, 16419 based on Foata normal form. 160/107674 useless extension candidates. Maximal degree in co-relation 415613. Up to 83833 conditions per place. [2023-08-29 17:56:37,720 INFO L137 encePairwiseOnDemand]: 356/402 looper letters, 617 selfloop transitions, 369 changer transitions 0/1026 dead transitions. [2023-08-29 17:56:37,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 1026 transitions, 11886 flow [2023-08-29 17:56:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:56:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:56:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2160 transitions. [2023-08-29 17:56:37,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5373134328358209 [2023-08-29 17:56:37,722 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2160 transitions. [2023-08-29 17:56:37,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2160 transitions. [2023-08-29 17:56:37,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:56:37,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2160 transitions. [2023-08-29 17:56:37,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:37,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:37,727 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:37,727 INFO L175 Difference]: Start difference. First operand has 245 places, 779 transitions, 8218 flow. Second operand 10 states and 2160 transitions. [2023-08-29 17:56:37,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 1026 transitions, 11886 flow [2023-08-29 17:56:44,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 1026 transitions, 11687 flow, removed 65 selfloop flow, removed 1 redundant places. [2023-08-29 17:56:44,790 INFO L231 Difference]: Finished difference. Result has 257 places, 802 transitions, 9302 flow [2023-08-29 17:56:44,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=8063, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9302, PETRI_PLACES=257, PETRI_TRANSITIONS=802} [2023-08-29 17:56:44,791 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 134 predicate places. [2023-08-29 17:56:44,791 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 802 transitions, 9302 flow [2023-08-29 17:56:44,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:44,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:56:44,791 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:56:44,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:56:44,792 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:56:44,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:56:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1151566162, now seen corresponding path program 5 times [2023-08-29 17:56:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:56:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148685734] [2023-08-29 17:56:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:56:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:56:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:56:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:56:45,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:56:45,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148685734] [2023-08-29 17:56:45,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148685734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:56:45,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:56:45,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:56:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239437595] [2023-08-29 17:56:45,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:56:45,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:56:45,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:56:45,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:56:45,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:56:45,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:56:45,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 802 transitions, 9302 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:45,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:56:45,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:56:45,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:57:17,236 INFO L130 PetriNetUnfolder]: 50362/113504 cut-off events. [2023-08-29 17:57:17,236 INFO L131 PetriNetUnfolder]: For 342628/345740 co-relation queries the response was YES. [2023-08-29 17:57:17,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449918 conditions, 113504 events. 50362/113504 cut-off events. For 342628/345740 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 881040 event pairs, 21920 based on Foata normal form. 42/111646 useless extension candidates. Maximal degree in co-relation 449853. Up to 93335 conditions per place. [2023-08-29 17:57:18,299 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 640 selfloop transitions, 270 changer transitions 1/955 dead transitions. [2023-08-29 17:57:18,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 955 transitions, 12362 flow [2023-08-29 17:57:18,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:57:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:57:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1618 transitions. [2023-08-29 17:57:18,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5031094527363185 [2023-08-29 17:57:18,300 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1618 transitions. [2023-08-29 17:57:18,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1618 transitions. [2023-08-29 17:57:18,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:57:18,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1618 transitions. [2023-08-29 17:57:18,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 202.25) internal successors, (1618), 8 states have internal predecessors, (1618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:18,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:18,304 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:18,304 INFO L175 Difference]: Start difference. First operand has 257 places, 802 transitions, 9302 flow. Second operand 8 states and 1618 transitions. [2023-08-29 17:57:18,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 955 transitions, 12362 flow [2023-08-29 17:57:26,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 955 transitions, 11762 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-29 17:57:26,805 INFO L231 Difference]: Finished difference. Result has 264 places, 831 transitions, 10054 flow [2023-08-29 17:57:26,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=8755, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=802, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10054, PETRI_PLACES=264, PETRI_TRANSITIONS=831} [2023-08-29 17:57:26,806 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 141 predicate places. [2023-08-29 17:57:26,806 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 831 transitions, 10054 flow [2023-08-29 17:57:26,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:26,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:57:26,806 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:57:26,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:57:26,807 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:57:26,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:57:26,807 INFO L85 PathProgramCache]: Analyzing trace with hash -143941484, now seen corresponding path program 5 times [2023-08-29 17:57:26,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:57:26,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765786875] [2023-08-29 17:57:26,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:57:26,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:57:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:57:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:57:27,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:57:27,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765786875] [2023-08-29 17:57:27,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765786875] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:57:27,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:57:27,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:57:27,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761753722] [2023-08-29 17:57:27,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:57:27,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:57:27,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:57:27,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:57:27,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:57:27,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:57:27,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 831 transitions, 10054 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:27,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:57:27,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:57:27,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:57:58,435 INFO L130 PetriNetUnfolder]: 49929/112837 cut-off events. [2023-08-29 17:57:58,435 INFO L131 PetriNetUnfolder]: For 394049/397044 co-relation queries the response was YES. [2023-08-29 17:57:59,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460357 conditions, 112837 events. 49929/112837 cut-off events. For 394049/397044 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 880061 event pairs, 16497 based on Foata normal form. 160/110716 useless extension candidates. Maximal degree in co-relation 460287. Up to 84952 conditions per place. [2023-08-29 17:57:59,701 INFO L137 encePairwiseOnDemand]: 356/402 looper letters, 606 selfloop transitions, 402 changer transitions 0/1048 dead transitions. [2023-08-29 17:57:59,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1048 transitions, 13865 flow [2023-08-29 17:57:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:57:59,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:57:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1722 transitions. [2023-08-29 17:57:59,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5354477611940298 [2023-08-29 17:57:59,703 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1722 transitions. [2023-08-29 17:57:59,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1722 transitions. [2023-08-29 17:57:59,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:57:59,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1722 transitions. [2023-08-29 17:57:59,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 215.25) internal successors, (1722), 8 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:59,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:59,707 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:57:59,707 INFO L175 Difference]: Start difference. First operand has 264 places, 831 transitions, 10054 flow. Second operand 8 states and 1722 transitions. [2023-08-29 17:57:59,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1048 transitions, 13865 flow [2023-08-29 17:58:12,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 1048 transitions, 13705 flow, removed 74 selfloop flow, removed 1 redundant places. [2023-08-29 17:58:12,660 INFO L231 Difference]: Finished difference. Result has 274 places, 869 transitions, 11646 flow [2023-08-29 17:58:12,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=9910, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11646, PETRI_PLACES=274, PETRI_TRANSITIONS=869} [2023-08-29 17:58:12,661 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 151 predicate places. [2023-08-29 17:58:12,661 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 869 transitions, 11646 flow [2023-08-29 17:58:12,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:58:12,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:58:12,662 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:58:12,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:58:12,662 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:58:12,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:58:12,662 INFO L85 PathProgramCache]: Analyzing trace with hash -857394844, now seen corresponding path program 6 times [2023-08-29 17:58:12,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:58:12,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131808412] [2023-08-29 17:58:12,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:58:12,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:58:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:58:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:58:13,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:58:13,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131808412] [2023-08-29 17:58:13,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131808412] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:58:13,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:58:13,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:58:13,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140828202] [2023-08-29 17:58:13,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:58:13,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:58:13,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:58:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:58:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:58:13,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:58:13,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 869 transitions, 11646 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:58:13,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:58:13,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:58:13,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:58:47,045 INFO L130 PetriNetUnfolder]: 51073/115171 cut-off events. [2023-08-29 17:58:47,045 INFO L131 PetriNetUnfolder]: For 460510/463838 co-relation queries the response was YES. [2023-08-29 17:58:47,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496001 conditions, 115171 events. 51073/115171 cut-off events. For 460510/463838 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 901265 event pairs, 16645 based on Foata normal form. 130/113036 useless extension candidates. Maximal degree in co-relation 495927. Up to 85158 conditions per place. [2023-08-29 17:58:48,275 INFO L137 encePairwiseOnDemand]: 356/402 looper letters, 617 selfloop transitions, 424 changer transitions 0/1081 dead transitions. [2023-08-29 17:58:48,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 1081 transitions, 15691 flow [2023-08-29 17:58:48,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:58:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:58:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1683 transitions. [2023-08-29 17:58:48,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.523320895522388 [2023-08-29 17:58:48,277 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1683 transitions. [2023-08-29 17:58:48,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1683 transitions. [2023-08-29 17:58:48,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:58:48,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1683 transitions. [2023-08-29 17:58:48,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 210.375) internal successors, (1683), 8 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:58:48,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:58:48,283 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:58:48,283 INFO L175 Difference]: Start difference. First operand has 274 places, 869 transitions, 11646 flow. Second operand 8 states and 1683 transitions. [2023-08-29 17:58:48,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 1081 transitions, 15691 flow [2023-08-29 17:59:04,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1081 transitions, 15591 flow, removed 38 selfloop flow, removed 1 redundant places. [2023-08-29 17:59:04,355 INFO L231 Difference]: Finished difference. Result has 285 places, 921 transitions, 13761 flow [2023-08-29 17:59:04,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=11554, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=373, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13761, PETRI_PLACES=285, PETRI_TRANSITIONS=921} [2023-08-29 17:59:04,356 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 162 predicate places. [2023-08-29 17:59:04,356 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 921 transitions, 13761 flow [2023-08-29 17:59:04,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:04,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:59:04,356 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:59:04,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:59:04,356 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:59:04,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:59:04,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1157759814, now seen corresponding path program 6 times [2023-08-29 17:59:04,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:59:04,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442104844] [2023-08-29 17:59:04,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:59:04,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:59:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:59:04,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:59:04,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:59:04,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442104844] [2023-08-29 17:59:04,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442104844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:59:04,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:59:04,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:59:04,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375061042] [2023-08-29 17:59:04,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:59:04,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:59:04,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:59:04,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:59:04,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:59:05,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 17:59:05,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 921 transitions, 13761 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:05,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:59:05,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 17:59:05,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:59:39,858 INFO L130 PetriNetUnfolder]: 51748/117033 cut-off events. [2023-08-29 17:59:39,858 INFO L131 PetriNetUnfolder]: For 538290/542340 co-relation queries the response was YES. [2023-08-29 17:59:40,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518189 conditions, 117033 events. 51748/117033 cut-off events. For 538290/542340 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 923316 event pairs, 3134 based on Foata normal form. 60/115317 useless extension candidates. Maximal degree in co-relation 518110. Up to 49991 conditions per place. [2023-08-29 17:59:41,144 INFO L137 encePairwiseOnDemand]: 375/402 looper letters, 1132 selfloop transitions, 142 changer transitions 1/1319 dead transitions. [2023-08-29 17:59:41,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1319 transitions, 19749 flow [2023-08-29 17:59:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:59:41,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:59:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2359 transitions. [2023-08-29 17:59:41,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5334690185436454 [2023-08-29 17:59:41,147 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2359 transitions. [2023-08-29 17:59:41,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2359 transitions. [2023-08-29 17:59:41,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:59:41,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2359 transitions. [2023-08-29 17:59:41,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 214.45454545454547) internal successors, (2359), 11 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:41,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 402.0) internal successors, (4824), 12 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:41,151 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 402.0) internal successors, (4824), 12 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:41,151 INFO L175 Difference]: Start difference. First operand has 285 places, 921 transitions, 13761 flow. Second operand 11 states and 2359 transitions. [2023-08-29 17:59:41,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1319 transitions, 19749 flow [2023-08-29 17:59:56,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 1319 transitions, 19460 flow, removed 130 selfloop flow, removed 1 redundant places. [2023-08-29 17:59:56,795 INFO L231 Difference]: Finished difference. Result has 299 places, 951 transitions, 14597 flow [2023-08-29 17:59:56,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=13597, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14597, PETRI_PLACES=299, PETRI_TRANSITIONS=951} [2023-08-29 17:59:56,796 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 176 predicate places. [2023-08-29 17:59:56,796 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 951 transitions, 14597 flow [2023-08-29 17:59:56,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:56,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:59:56,796 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:59:56,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:59:56,796 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 17:59:56,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:59:56,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1824547735, now seen corresponding path program 1 times [2023-08-29 17:59:56,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:59:56,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814858641] [2023-08-29 17:59:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:59:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:59:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:59:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 17:59:57,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:59:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814858641] [2023-08-29 17:59:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814858641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:59:57,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:59:57,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:59:57,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427186128] [2023-08-29 17:59:57,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:59:57,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:59:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:59:57,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:59:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:59:57,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 402 [2023-08-29 17:59:57,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 951 transitions, 14597 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:59:57,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:59:57,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 402 [2023-08-29 17:59:57,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:00:38,130 INFO L130 PetriNetUnfolder]: 55814/124423 cut-off events. [2023-08-29 18:00:38,131 INFO L131 PetriNetUnfolder]: For 577083/585442 co-relation queries the response was YES. [2023-08-29 18:00:39,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532180 conditions, 124423 events. 55814/124423 cut-off events. For 577083/585442 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 981242 event pairs, 20258 based on Foata normal form. 672/122350 useless extension candidates. Maximal degree in co-relation 532096. Up to 101029 conditions per place. [2023-08-29 18:00:39,942 INFO L137 encePairwiseOnDemand]: 360/402 looper letters, 926 selfloop transitions, 209 changer transitions 0/1311 dead transitions. [2023-08-29 18:00:39,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1311 transitions, 19701 flow [2023-08-29 18:00:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:00:39,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:00:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1382 transitions. [2023-08-29 18:00:39,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5729684908789386 [2023-08-29 18:00:39,944 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1382 transitions. [2023-08-29 18:00:39,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1382 transitions. [2023-08-29 18:00:39,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:00:39,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1382 transitions. [2023-08-29 18:00:39,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.33333333333334) internal successors, (1382), 6 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:00:39,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:00:39,947 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:00:39,947 INFO L175 Difference]: Start difference. First operand has 299 places, 951 transitions, 14597 flow. Second operand 6 states and 1382 transitions. [2023-08-29 18:00:39,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1311 transitions, 19701 flow