./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.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_05-ptra_rc.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 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --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 17:45:11,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:45:11,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:45:11,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:45:11,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:45:11,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:45:11,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:45:11,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:45:11,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:45:11,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:45:11,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:45:11,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:45:11,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:45:11,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:45:11,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:45:11,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:45:11,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:45:11,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:45:11,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:45:11,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:45:11,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:45:11,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:45:11,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:45:11,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:45:11,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:45:11,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:45:11,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:45:11,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:45:11,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:45:11,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:45:11,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:45:11,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:45:11,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:45:11,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:45:11,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:45:11,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:45:11,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:45:11,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:45:11,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:45:11,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:45:11,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:45:11,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:45:11,431 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:45:11,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:45:11,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:45:11,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:45:11,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:45:11,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:45:11,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:45:11,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:45:11,434 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:45:11,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:45:11,435 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:45:11,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:45:11,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:45:11,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:45:11,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:45:11,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:45:11,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:45:11,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:45:11,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:45:11,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:45:11,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:45:11,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:45:11,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:45:11,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:45:11,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:45:11,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:45:11,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:45:11,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:45:11,438 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:45:11,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:45:11,439 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:45:11,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:45:11,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:45:11,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:45:11,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:45:11,752 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:45:11,753 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:45:11,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i [2023-08-29 17:45:12,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:45:12,827 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:45:12,827 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i [2023-08-29 17:45:12,839 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42379a21/aec1959fe5094dd58630a3de4319f73f/FLAG2ef07f9ed [2023-08-29 17:45:12,847 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42379a21/aec1959fe5094dd58630a3de4319f73f [2023-08-29 17:45:12,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:45:12,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:45:12,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:45:12,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:45:12,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:45:12,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:45:12" (1/1) ... [2023-08-29 17:45:12,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519f2f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:12, skipping insertion in model container [2023-08-29 17:45:12,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:45:12" (1/1) ... [2023-08-29 17:45:12,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:45:12,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:45:13,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:45:13,376 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:45:13,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:45:13,482 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:45:13,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13 WrapperNode [2023-08-29 17:45:13,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:45:13,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:45:13,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:45:13,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:45:13,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,545 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 208 [2023-08-29 17:45:13,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:45:13,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:45:13,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:45:13,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:45:13,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:45:13,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:45:13,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:45:13,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:45:13,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (1/1) ... [2023-08-29 17:45:13,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:45:13,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:45:13,623 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 17:45:13,628 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 17:45:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:45:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:45:13,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:45:13,648 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:45:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:45:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:45:13,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:45:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:45:13,659 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 17:45:13,818 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:45:13,819 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:45:14,123 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:45:14,130 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:45:14,130 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:45:14,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:45:14 BoogieIcfgContainer [2023-08-29 17:45:14,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:45:14,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:45:14,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:45:14,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:45:14,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:45:12" (1/3) ... [2023-08-29 17:45:14,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63286f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:45:14, skipping insertion in model container [2023-08-29 17:45:14,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:45:13" (2/3) ... [2023-08-29 17:45:14,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63286f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:45:14, skipping insertion in model container [2023-08-29 17:45:14,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:45:14" (3/3) ... [2023-08-29 17:45:14,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2023-08-29 17:45:14,142 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:45:14,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:45:14,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-29 17:45:14,148 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:45:14,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:45:14,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 236 transitions, 477 flow [2023-08-29 17:45:14,282 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2023-08-29 17:45:14,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:45:14,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:45:14,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 236 transitions, 477 flow [2023-08-29 17:45:14,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 235 transitions, 473 flow [2023-08-29 17:45:14,290 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:45:14,296 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 235 transitions, 473 flow [2023-08-29 17:45:14,297 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 235 transitions, 473 flow [2023-08-29 17:45:14,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 235 transitions, 473 flow [2023-08-29 17:45:14,340 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2023-08-29 17:45:14,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:45:14,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:45:14,343 INFO L119 LiptonReduction]: Number of co-enabled transitions 4620 [2023-08-29 17:46:02,043 WARN L222 SmtUtils]: Spent 21.68s on a formula simplification. DAG size of input: 160 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:13,869 WARN L222 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 160 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:19,617 WARN L222 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:25,105 WARN L222 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:31,735 WARN L222 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:58,628 WARN L222 SmtUtils]: Spent 26.89s on a formula simplification that was a NOOP. DAG size: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:47:11,058 WARN L222 SmtUtils]: Spent 12.43s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:48:00,627 WARN L222 SmtUtils]: Spent 49.55s on a formula simplification that was a NOOP. DAG size: 344 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:48:33,981 WARN L222 SmtUtils]: Spent 33.35s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:49:27,264 WARN L222 SmtUtils]: Spent 53.28s on a formula simplification that was a NOOP. DAG size: 344 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:50:17,898 WARN L222 SmtUtils]: Spent 50.63s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:50:17,905 INFO L134 LiptonReduction]: Checked pairs total: 39612 [2023-08-29 17:50:17,905 INFO L136 LiptonReduction]: Total number of compositions: 211 [2023-08-29 17:50:17,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:50:17,918 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;@7d8f95c8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:50:17,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-29 17:50:17,919 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:50:17,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:17,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:17,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:50:17,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:17,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash 768, now seen corresponding path program 1 times [2023-08-29 17:50:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:17,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771798195] [2023-08-29 17:50:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:17,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:18,068 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 17:50:18,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:18,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771798195] [2023-08-29 17:50:18,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771798195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:18,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:18,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:50:18,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492900354] [2023-08-29 17:50:18,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:18,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:50:18,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:18,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:50:18,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:50:18,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 447 [2023-08-29 17:50:18,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 17:50:18,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:18,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 447 [2023-08-29 17:50:18,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:18,384 INFO L130 PetriNetUnfolder]: 75/373 cut-off events. [2023-08-29 17:50:18,385 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:18,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 373 events. 75/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1763 event pairs, 75 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 541. Up to 173 conditions per place. [2023-08-29 17:50:18,390 INFO L137 encePairwiseOnDemand]: 435/447 looper letters, 22 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 17:50:18,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 177 flow [2023-08-29 17:50:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:50:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:50:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 504 transitions. [2023-08-29 17:50:18,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5637583892617449 [2023-08-29 17:50:18,406 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 504 transitions. [2023-08-29 17:50:18,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 504 transitions. [2023-08-29 17:50:18,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:18,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 504 transitions. [2023-08-29 17:50:18,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 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 17:50:18,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:18,418 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:18,419 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 504 transitions. [2023-08-29 17:50:18,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 177 flow [2023-08-29 17:50:18,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:18,422 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 17:50:18,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-29 17:50:18,425 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2023-08-29 17:50:18,425 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 17:50:18,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 17:50:18,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:18,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:50:18,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:50:18,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:18,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:18,427 INFO L85 PathProgramCache]: Analyzing trace with hash 744712625, now seen corresponding path program 1 times [2023-08-29 17:50:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:18,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108822692] [2023-08-29 17:50:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:18,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:18,572 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 17:50:18,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:18,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108822692] [2023-08-29 17:50:18,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108822692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:18,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:18,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:50:18,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776025942] [2023-08-29 17:50:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:18,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:50:18,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:50:18,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:50:18,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 447 [2023-08-29 17:50:18,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 17:50:18,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:18,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 447 [2023-08-29 17:50:18,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:18,880 INFO L130 PetriNetUnfolder]: 112/486 cut-off events. [2023-08-29 17:50:18,880 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:18,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 486 events. 112/486 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2344 event pairs, 112 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 737. Up to 249 conditions per place. [2023-08-29 17:50:18,882 INFO L137 encePairwiseOnDemand]: 443/447 looper letters, 24 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 17:50:18,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 176 flow [2023-08-29 17:50:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:50:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:50:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2023-08-29 17:50:18,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5108128262490679 [2023-08-29 17:50:18,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 685 transitions. [2023-08-29 17:50:18,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 685 transitions. [2023-08-29 17:50:18,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:18,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 685 transitions. [2023-08-29 17:50:18,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states 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 17:50:18,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 17:50:18,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states 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 17:50:18,889 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 685 transitions. [2023-08-29 17:50:18,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 176 flow [2023-08-29 17:50:18,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:18,891 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 17:50:18,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-29 17:50:18,891 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2023-08-29 17:50:18,892 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 17:50:18,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 17:50:18,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:18,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:18,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:50:18,893 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:18,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:18,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1420049530, now seen corresponding path program 1 times [2023-08-29 17:50:18,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226905629] [2023-08-29 17:50:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:18,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:19,315 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 17:50:19,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226905629] [2023-08-29 17:50:19,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226905629] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:19,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:19,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:19,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597880398] [2023-08-29 17:50:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:19,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:19,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:19,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:19,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 447 [2023-08-29 17:50:19,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states 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 17:50:19,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:19,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 447 [2023-08-29 17:50:19,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:20,392 INFO L130 PetriNetUnfolder]: 432/1062 cut-off events. [2023-08-29 17:50:20,392 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:20,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 1062 events. 432/1062 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5103 event pairs, 329 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1978. Up to 838 conditions per place. [2023-08-29 17:50:20,396 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 64 selfloop transitions, 37 changer transitions 0/118 dead transitions. [2023-08-29 17:50:20,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 118 transitions, 442 flow [2023-08-29 17:50:20,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2023-08-29 17:50:20,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43400447427293065 [2023-08-29 17:50:20,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2023-08-29 17:50:20,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2023-08-29 17:50:20,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:20,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2023-08-29 17:50:20,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states 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 17:50:20,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:50:20,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:50:20,406 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1164 transitions. [2023-08-29 17:50:20,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 118 transitions, 442 flow [2023-08-29 17:50:20,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 118 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:20,408 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 17:50:20,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-29 17:50:20,409 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-29 17:50:20,409 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 17:50:20,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states 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 17:50:20,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:20,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:20,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:50:20,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:20,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:20,411 INFO L85 PathProgramCache]: Analyzing trace with hash 508169636, now seen corresponding path program 1 times [2023-08-29 17:50:20,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:20,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337619372] [2023-08-29 17:50:20,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:20,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:20,682 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 17:50:20,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:20,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337619372] [2023-08-29 17:50:20,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337619372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:20,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:20,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:20,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438881626] [2023-08-29 17:50:20,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:20,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:20,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:20,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:20,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:20,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 447 [2023-08-29 17:50:20,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states 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 17:50:20,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:20,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 447 [2023-08-29 17:50:20,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:21,965 INFO L130 PetriNetUnfolder]: 649/1694 cut-off events. [2023-08-29 17:50:21,966 INFO L131 PetriNetUnfolder]: For 245/260 co-relation queries the response was YES. [2023-08-29 17:50:21,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3742 conditions, 1694 events. 649/1694 cut-off events. For 245/260 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10197 event pairs, 60 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 3734. Up to 721 conditions per place. [2023-08-29 17:50:21,972 INFO L137 encePairwiseOnDemand]: 419/447 looper letters, 145 selfloop transitions, 77 changer transitions 0/254 dead transitions. [2023-08-29 17:50:21,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 254 transitions, 1186 flow [2023-08-29 17:50:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1250 transitions. [2023-08-29 17:50:21,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46607009694258017 [2023-08-29 17:50:21,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1250 transitions. [2023-08-29 17:50:21,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1250 transitions. [2023-08-29 17:50:21,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:21,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1250 transitions. [2023-08-29 17:50:21,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.33333333333334) internal successors, (1250), 6 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states 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 17:50:21,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:50:21,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:50:21,983 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1250 transitions. [2023-08-29 17:50:21,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 254 transitions, 1186 flow [2023-08-29 17:50:21,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 254 transitions, 1186 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:21,989 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 17:50:21,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-29 17:50:21,990 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2023-08-29 17:50:21,990 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 17:50:21,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states 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 17:50:21,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:21,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:21,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:50:21,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:21,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:21,991 INFO L85 PathProgramCache]: Analyzing trace with hash -185816610, now seen corresponding path program 1 times [2023-08-29 17:50:21,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:21,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795756570] [2023-08-29 17:50:21,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:21,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:22,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:22,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:22,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795756570] [2023-08-29 17:50:22,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795756570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:22,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:22,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:22,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197565300] [2023-08-29 17:50:22,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:22,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:22,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:22,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:22,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 447 [2023-08-29 17:50:22,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states 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 17:50:22,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:22,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 447 [2023-08-29 17:50:22,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:24,729 INFO L130 PetriNetUnfolder]: 792/1957 cut-off events. [2023-08-29 17:50:24,730 INFO L131 PetriNetUnfolder]: For 1504/1526 co-relation queries the response was YES. [2023-08-29 17:50:24,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 1957 events. 792/1957 cut-off events. For 1504/1526 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11258 event pairs, 296 based on Foata normal form. 4/1932 useless extension candidates. Maximal degree in co-relation 5851. Up to 1323 conditions per place. [2023-08-29 17:50:24,738 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 237 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-29 17:50:24,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2311 flow [2023-08-29 17:50:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:50:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:50:24,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2785 transitions. [2023-08-29 17:50:24,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4153616703952274 [2023-08-29 17:50:24,745 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2785 transitions. [2023-08-29 17:50:24,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2785 transitions. [2023-08-29 17:50:24,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:24,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2785 transitions. [2023-08-29 17:50:24,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.66666666666666) internal successors, (2785), 15 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states 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 17:50:24,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states 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 17:50:24,758 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states 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 17:50:24,758 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2785 transitions. [2023-08-29 17:50:24,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2311 flow [2023-08-29 17:50:24,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2293 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:24,771 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 17:50:24,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-29 17:50:24,773 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2023-08-29 17:50:24,774 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 17:50:24,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states 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 17:50:24,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:24,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:24,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:50:24,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:24,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:24,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1371662751, now seen corresponding path program 1 times [2023-08-29 17:50:24,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:24,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669553434] [2023-08-29 17:50:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:24,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:25,365 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 17:50:25,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:25,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669553434] [2023-08-29 17:50:25,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669553434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:25,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:25,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:25,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180268626] [2023-08-29 17:50:25,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:25,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:25,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:25,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 447 [2023-08-29 17:50:25,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states 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 17:50:25,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:25,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 447 [2023-08-29 17:50:25,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:28,115 INFO L130 PetriNetUnfolder]: 632/1690 cut-off events. [2023-08-29 17:50:28,115 INFO L131 PetriNetUnfolder]: For 1728/1750 co-relation queries the response was YES. [2023-08-29 17:50:28,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5525 conditions, 1690 events. 632/1690 cut-off events. For 1728/1750 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10180 event pairs, 26 based on Foata normal form. 5/1672 useless extension candidates. Maximal degree in co-relation 5506. Up to 691 conditions per place. [2023-08-29 17:50:28,122 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 175 selfloop transitions, 104 changer transitions 0/317 dead transitions. [2023-08-29 17:50:28,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 317 transitions, 2389 flow [2023-08-29 17:50:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:50:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:50:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2103 transitions. [2023-08-29 17:50:28,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42769981696156195 [2023-08-29 17:50:28,126 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2103 transitions. [2023-08-29 17:50:28,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2103 transitions. [2023-08-29 17:50:28,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:28,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2103 transitions. [2023-08-29 17:50:28,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.1818181818182) internal successors, (2103), 11 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states 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 17:50:28,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states 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 17:50:28,135 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states 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 17:50:28,135 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 11 states and 2103 transitions. [2023-08-29 17:50:28,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 317 transitions, 2389 flow [2023-08-29 17:50:28,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 317 transitions, 2383 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:28,147 INFO L231 Difference]: Finished difference. Result has 119 places, 225 transitions, 1888 flow [2023-08-29 17:50:28,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1888, PETRI_PLACES=119, PETRI_TRANSITIONS=225} [2023-08-29 17:50:28,149 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 38 predicate places. [2023-08-29 17:50:28,149 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 225 transitions, 1888 flow [2023-08-29 17:50:28,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states 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 17:50:28,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:28,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:28,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:50:28,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:28,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash 932939411, now seen corresponding path program 2 times [2023-08-29 17:50:28,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:28,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064197212] [2023-08-29 17:50:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:28,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:28,569 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 17:50:28,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:28,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064197212] [2023-08-29 17:50:28,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064197212] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:28,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:28,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:28,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169770767] [2023-08-29 17:50:28,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:28,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:28,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:28,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:29,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:29,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 225 transitions, 1888 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:29,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:29,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:29,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:30,744 INFO L130 PetriNetUnfolder]: 697/1824 cut-off events. [2023-08-29 17:50:30,744 INFO L131 PetriNetUnfolder]: For 4034/4062 co-relation queries the response was YES. [2023-08-29 17:50:30,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7104 conditions, 1824 events. 697/1824 cut-off events. For 4034/4062 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11012 event pairs, 67 based on Foata normal form. 26/1823 useless extension candidates. Maximal degree in co-relation 7079. Up to 533 conditions per place. [2023-08-29 17:50:30,753 INFO L137 encePairwiseOnDemand]: 422/447 looper letters, 329 selfloop transitions, 93 changer transitions 3/463 dead transitions. [2023-08-29 17:50:30,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 463 transitions, 4138 flow [2023-08-29 17:50:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:50:30,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:50:30,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3370 transitions. [2023-08-29 17:50:30,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41884166045239873 [2023-08-29 17:50:30,759 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3370 transitions. [2023-08-29 17:50:30,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3370 transitions. [2023-08-29 17:50:30,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:30,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3370 transitions. [2023-08-29 17:50:30,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 187.22222222222223) internal successors, (3370), 18 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states 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 17:50:30,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:50:30,773 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:50:30,773 INFO L175 Difference]: Start difference. First operand has 119 places, 225 transitions, 1888 flow. Second operand 18 states and 3370 transitions. [2023-08-29 17:50:30,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 463 transitions, 4138 flow [2023-08-29 17:50:30,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 463 transitions, 4128 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 17:50:30,790 INFO L231 Difference]: Finished difference. Result has 140 places, 263 transitions, 2535 flow [2023-08-29 17:50:30,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2535, PETRI_PLACES=140, PETRI_TRANSITIONS=263} [2023-08-29 17:50:30,791 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 59 predicate places. [2023-08-29 17:50:30,791 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 263 transitions, 2535 flow [2023-08-29 17:50:30,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:30,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:30,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:30,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:50:30,792 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:30,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1098327645, now seen corresponding path program 3 times [2023-08-29 17:50:30,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:30,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193594767] [2023-08-29 17:50:30,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:30,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:31,192 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 17:50:31,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:31,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193594767] [2023-08-29 17:50:31,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193594767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:31,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:31,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102361742] [2023-08-29 17:50:31,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:31,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:31,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:31,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:31,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:31,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:31,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 263 transitions, 2535 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:31,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:31,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:31,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:33,211 INFO L130 PetriNetUnfolder]: 880/2319 cut-off events. [2023-08-29 17:50:33,211 INFO L131 PetriNetUnfolder]: For 8091/8131 co-relation queries the response was YES. [2023-08-29 17:50:33,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10085 conditions, 2319 events. 880/2319 cut-off events. For 8091/8131 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15357 event pairs, 99 based on Foata normal form. 25/2312 useless extension candidates. Maximal degree in co-relation 10055. Up to 738 conditions per place. [2023-08-29 17:50:33,226 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 338 selfloop transitions, 153 changer transitions 3/532 dead transitions. [2023-08-29 17:50:33,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 532 transitions, 5288 flow [2023-08-29 17:50:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:50:33,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:50:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3256 transitions. [2023-08-29 17:50:33,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4284774312409528 [2023-08-29 17:50:33,233 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3256 transitions. [2023-08-29 17:50:33,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3256 transitions. [2023-08-29 17:50:33,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:33,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3256 transitions. [2023-08-29 17:50:33,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 191.52941176470588) internal successors, (3256), 17 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states 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 17:50:33,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states 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 17:50:33,257 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states 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 17:50:33,257 INFO L175 Difference]: Start difference. First operand has 140 places, 263 transitions, 2535 flow. Second operand 17 states and 3256 transitions. [2023-08-29 17:50:33,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 532 transitions, 5288 flow [2023-08-29 17:50:33,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 532 transitions, 5275 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 17:50:33,290 INFO L231 Difference]: Finished difference. Result has 164 places, 320 transitions, 3881 flow [2023-08-29 17:50:33,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=2527, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3881, PETRI_PLACES=164, PETRI_TRANSITIONS=320} [2023-08-29 17:50:33,292 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 83 predicate places. [2023-08-29 17:50:33,293 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 320 transitions, 3881 flow [2023-08-29 17:50:33,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:33,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:33,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:33,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:50:33,293 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:33,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash -869727405, now seen corresponding path program 4 times [2023-08-29 17:50:33,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063302043] [2023-08-29 17:50:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:33,806 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 17:50:33,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:33,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063302043] [2023-08-29 17:50:33,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063302043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:33,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:33,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:33,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966984603] [2023-08-29 17:50:33,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:33,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:33,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:33,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:33,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:34,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:34,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 320 transitions, 3881 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:34,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:34,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:34,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:35,905 INFO L130 PetriNetUnfolder]: 1172/3145 cut-off events. [2023-08-29 17:50:35,906 INFO L131 PetriNetUnfolder]: For 16596/16715 co-relation queries the response was YES. [2023-08-29 17:50:35,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14873 conditions, 3145 events. 1172/3145 cut-off events. For 16596/16715 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 23383 event pairs, 144 based on Foata normal form. 64/3164 useless extension candidates. Maximal degree in co-relation 14831. Up to 902 conditions per place. [2023-08-29 17:50:35,927 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 334 selfloop transitions, 206 changer transitions 2/580 dead transitions. [2023-08-29 17:50:35,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 580 transitions, 7101 flow [2023-08-29 17:50:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:50:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:50:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2364 transitions. [2023-08-29 17:50:35,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4407158836689038 [2023-08-29 17:50:35,931 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2364 transitions. [2023-08-29 17:50:35,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2364 transitions. [2023-08-29 17:50:35,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:35,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2364 transitions. [2023-08-29 17:50:35,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 197.0) internal successors, (2364), 12 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states 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 17:50:35,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 447.0) internal successors, (5811), 13 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states 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 17:50:35,939 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 447.0) internal successors, (5811), 13 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states 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 17:50:35,939 INFO L175 Difference]: Start difference. First operand has 164 places, 320 transitions, 3881 flow. Second operand 12 states and 2364 transitions. [2023-08-29 17:50:35,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 580 transitions, 7101 flow [2023-08-29 17:50:35,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 580 transitions, 7043 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-29 17:50:35,994 INFO L231 Difference]: Finished difference. Result has 181 places, 394 transitions, 5824 flow [2023-08-29 17:50:35,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=3847, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5824, PETRI_PLACES=181, PETRI_TRANSITIONS=394} [2023-08-29 17:50:35,995 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 100 predicate places. [2023-08-29 17:50:35,995 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 394 transitions, 5824 flow [2023-08-29 17:50:35,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:35,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:35,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:35,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:50:35,996 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:35,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash -740616625, now seen corresponding path program 5 times [2023-08-29 17:50:35,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:35,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222423581] [2023-08-29 17:50:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:36,438 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 17:50:36,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:36,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222423581] [2023-08-29 17:50:36,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222423581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:36,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:36,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:36,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604111695] [2023-08-29 17:50:36,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:36,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:36,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:36,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:36,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 394 transitions, 5824 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:36,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:36,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:36,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:39,424 INFO L130 PetriNetUnfolder]: 1516/4057 cut-off events. [2023-08-29 17:50:39,424 INFO L131 PetriNetUnfolder]: For 31767/31914 co-relation queries the response was YES. [2023-08-29 17:50:39,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21156 conditions, 4057 events. 1516/4057 cut-off events. For 31767/31914 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 32063 event pairs, 182 based on Foata normal form. 108/4107 useless extension candidates. Maximal degree in co-relation 21105. Up to 965 conditions per place. [2023-08-29 17:50:39,500 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 457 selfloop transitions, 253 changer transitions 3/751 dead transitions. [2023-08-29 17:50:39,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 751 transitions, 10742 flow [2023-08-29 17:50:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:50:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:50:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3078 transitions. [2023-08-29 17:50:39,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4303691275167785 [2023-08-29 17:50:39,513 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3078 transitions. [2023-08-29 17:50:39,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3078 transitions. [2023-08-29 17:50:39,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:39,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3078 transitions. [2023-08-29 17:50:39,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 192.375) internal successors, (3078), 16 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states 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 17:50:39,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 447.0) internal successors, (7599), 17 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states 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 17:50:39,523 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 447.0) internal successors, (7599), 17 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states 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 17:50:39,524 INFO L175 Difference]: Start difference. First operand has 181 places, 394 transitions, 5824 flow. Second operand 16 states and 3078 transitions. [2023-08-29 17:50:39,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 751 transitions, 10742 flow [2023-08-29 17:50:39,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 751 transitions, 10682 flow, removed 30 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:39,659 INFO L231 Difference]: Finished difference. Result has 206 places, 488 transitions, 8496 flow [2023-08-29 17:50:39,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=5774, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8496, PETRI_PLACES=206, PETRI_TRANSITIONS=488} [2023-08-29 17:50:39,660 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 125 predicate places. [2023-08-29 17:50:39,660 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 488 transitions, 8496 flow [2023-08-29 17:50:39,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:39,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:39,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:39,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:50:39,661 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:39,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:39,661 INFO L85 PathProgramCache]: Analyzing trace with hash -560006715, now seen corresponding path program 6 times [2023-08-29 17:50:39,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:39,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539959484] [2023-08-29 17:50:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:39,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:40,087 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 17:50:40,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539959484] [2023-08-29 17:50:40,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539959484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:40,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:40,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:40,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728527344] [2023-08-29 17:50:40,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:40,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:40,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:40,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:40,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:40,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:40,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 488 transitions, 8496 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:40,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:40,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:40,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:43,393 INFO L130 PetriNetUnfolder]: 1842/4886 cut-off events. [2023-08-29 17:50:43,394 INFO L131 PetriNetUnfolder]: For 52205/52379 co-relation queries the response was YES. [2023-08-29 17:50:43,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27722 conditions, 4886 events. 1842/4886 cut-off events. For 52205/52379 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 40579 event pairs, 300 based on Foata normal form. 99/4918 useless extension candidates. Maximal degree in co-relation 27660. Up to 1294 conditions per place. [2023-08-29 17:50:43,433 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 428 selfloop transitions, 316 changer transitions 2/784 dead transitions. [2023-08-29 17:50:43,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 784 transitions, 13092 flow [2023-08-29 17:50:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:50:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:50:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2728 transitions. [2023-08-29 17:50:43,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43592201981463724 [2023-08-29 17:50:43,436 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2728 transitions. [2023-08-29 17:50:43,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2728 transitions. [2023-08-29 17:50:43,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:43,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2728 transitions. [2023-08-29 17:50:43,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.85714285714286) internal successors, (2728), 14 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states 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 17:50:43,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:50:43,445 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:50:43,445 INFO L175 Difference]: Start difference. First operand has 206 places, 488 transitions, 8496 flow. Second operand 14 states and 2728 transitions. [2023-08-29 17:50:43,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 784 transitions, 13092 flow [2023-08-29 17:50:43,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 784 transitions, 13056 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-29 17:50:43,749 INFO L231 Difference]: Finished difference. Result has 228 places, 570 transitions, 11485 flow [2023-08-29 17:50:43,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=8471, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11485, PETRI_PLACES=228, PETRI_TRANSITIONS=570} [2023-08-29 17:50:43,750 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 147 predicate places. [2023-08-29 17:50:43,750 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 570 transitions, 11485 flow [2023-08-29 17:50:43,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:43,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:43,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:43,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:50:43,751 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:43,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:43,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1713013715, now seen corresponding path program 7 times [2023-08-29 17:50:43,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:43,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025929216] [2023-08-29 17:50:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:43,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:44,142 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 17:50:44,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:44,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025929216] [2023-08-29 17:50:44,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025929216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:44,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:44,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:44,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194917789] [2023-08-29 17:50:44,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:44,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:44,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:44,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:44,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:44,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 570 transitions, 11485 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:44,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:44,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:44,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:47,657 INFO L130 PetriNetUnfolder]: 2057/5564 cut-off events. [2023-08-29 17:50:47,658 INFO L131 PetriNetUnfolder]: For 75990/76189 co-relation queries the response was YES. [2023-08-29 17:50:47,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33663 conditions, 5564 events. 2057/5564 cut-off events. For 75990/76189 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 48245 event pairs, 248 based on Foata normal form. 136/5623 useless extension candidates. Maximal degree in co-relation 33590. Up to 1388 conditions per place. [2023-08-29 17:50:47,701 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 486 selfloop transitions, 365 changer transitions 3/892 dead transitions. [2023-08-29 17:50:47,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 892 transitions, 16634 flow [2023-08-29 17:50:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:50:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:50:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3264 transitions. [2023-08-29 17:50:47,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42953020134228187 [2023-08-29 17:50:47,705 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3264 transitions. [2023-08-29 17:50:47,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3264 transitions. [2023-08-29 17:50:47,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:47,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3264 transitions. [2023-08-29 17:50:47,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 192.0) internal successors, (3264), 17 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 17:50:47,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states 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 17:50:47,713 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states 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 17:50:47,713 INFO L175 Difference]: Start difference. First operand has 228 places, 570 transitions, 11485 flow. Second operand 17 states and 3264 transitions. [2023-08-29 17:50:47,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 892 transitions, 16634 flow [2023-08-29 17:50:48,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 892 transitions, 16567 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:48,192 INFO L231 Difference]: Finished difference. Result has 254 places, 639 transitions, 14509 flow [2023-08-29 17:50:48,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=11430, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=296, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14509, PETRI_PLACES=254, PETRI_TRANSITIONS=639} [2023-08-29 17:50:48,193 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 173 predicate places. [2023-08-29 17:50:48,193 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 639 transitions, 14509 flow [2023-08-29 17:50:48,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:48,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:48,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:48,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:50:48,194 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:48,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1012230573, now seen corresponding path program 8 times [2023-08-29 17:50:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:48,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830173912] [2023-08-29 17:50:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:48,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:48,582 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 17:50:48,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:48,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830173912] [2023-08-29 17:50:48,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830173912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:48,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:48,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:48,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788293952] [2023-08-29 17:50:48,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:48,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:48,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:48,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:48,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:49,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:49,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 639 transitions, 14509 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:49,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:49,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:49,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:52,514 INFO L130 PetriNetUnfolder]: 2475/6633 cut-off events. [2023-08-29 17:50:52,514 INFO L131 PetriNetUnfolder]: For 117794/118007 co-relation queries the response was YES. [2023-08-29 17:50:52,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43300 conditions, 6633 events. 2475/6633 cut-off events. For 117794/118007 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 59793 event pairs, 325 based on Foata normal form. 136/6686 useless extension candidates. Maximal degree in co-relation 43216. Up to 1508 conditions per place. [2023-08-29 17:50:52,599 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 519 selfloop transitions, 413 changer transitions 2/972 dead transitions. [2023-08-29 17:50:52,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 972 transitions, 20851 flow [2023-08-29 17:50:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:50:52,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:50:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2716 transitions. [2023-08-29 17:50:52,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43400447427293065 [2023-08-29 17:50:52,607 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2716 transitions. [2023-08-29 17:50:52,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2716 transitions. [2023-08-29 17:50:52,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:52,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2716 transitions. [2023-08-29 17:50:52,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.0) internal successors, (2716), 14 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states 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 17:50:52,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:50:52,614 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:50:52,614 INFO L175 Difference]: Start difference. First operand has 254 places, 639 transitions, 14509 flow. Second operand 14 states and 2716 transitions. [2023-08-29 17:50:52,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 972 transitions, 20851 flow [2023-08-29 17:50:53,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 972 transitions, 20771 flow, removed 29 selfloop flow, removed 5 redundant places. [2023-08-29 17:50:53,387 INFO L231 Difference]: Finished difference. Result has 274 places, 737 transitions, 18678 flow [2023-08-29 17:50:53,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=14443, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18678, PETRI_PLACES=274, PETRI_TRANSITIONS=737} [2023-08-29 17:50:53,388 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 193 predicate places. [2023-08-29 17:50:53,388 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 737 transitions, 18678 flow [2023-08-29 17:50:53,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:53,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:53,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:50:53,389 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:53,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:53,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1332284735, now seen corresponding path program 9 times [2023-08-29 17:50:53,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:53,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909926914] [2023-08-29 17:50:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:53,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:54,019 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 17:50:54,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:54,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909926914] [2023-08-29 17:50:54,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909926914] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:54,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:54,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:54,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334780900] [2023-08-29 17:50:54,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:54,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:54,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:54,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:54,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 447 [2023-08-29 17:50:54,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 737 transitions, 18678 flow. Second operand has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states 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 17:50:54,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:54,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 447 [2023-08-29 17:50:54,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:57,810 INFO L130 PetriNetUnfolder]: 2506/6722 cut-off events. [2023-08-29 17:50:57,810 INFO L131 PetriNetUnfolder]: For 147548/147776 co-relation queries the response was YES. [2023-08-29 17:50:57,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46950 conditions, 6722 events. 2506/6722 cut-off events. For 147548/147776 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 60946 event pairs, 323 based on Foata normal form. 124/6772 useless extension candidates. Maximal degree in co-relation 46855. Up to 2981 conditions per place. [2023-08-29 17:50:57,872 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 407 selfloop transitions, 420 changer transitions 0/865 dead transitions. [2023-08-29 17:50:57,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 865 transitions, 21876 flow [2023-08-29 17:50:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:50:57,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:50:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2106 transitions. [2023-08-29 17:50:57,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4283099450884686 [2023-08-29 17:50:57,874 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2106 transitions. [2023-08-29 17:50:57,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2106 transitions. [2023-08-29 17:50:57,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:57,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2106 transitions. [2023-08-29 17:50:57,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.45454545454547) internal successors, (2106), 11 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states 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 17:50:57,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states 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 17:50:57,879 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states 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 17:50:57,879 INFO L175 Difference]: Start difference. First operand has 274 places, 737 transitions, 18678 flow. Second operand 11 states and 2106 transitions. [2023-08-29 17:50:57,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 865 transitions, 21876 flow [2023-08-29 17:50:58,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 865 transitions, 21788 flow, removed 44 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:58,776 INFO L231 Difference]: Finished difference. Result has 289 places, 756 transitions, 20630 flow [2023-08-29 17:50:58,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=18602, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20630, PETRI_PLACES=289, PETRI_TRANSITIONS=756} [2023-08-29 17:50:58,776 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 208 predicate places. [2023-08-29 17:50:58,777 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 756 transitions, 20630 flow [2023-08-29 17:50:58,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states 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 17:50:58,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:58,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:58,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:50:58,777 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:50:58,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:58,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1575505595, now seen corresponding path program 10 times [2023-08-29 17:50:58,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:58,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125545811] [2023-08-29 17:50:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:58,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:59,124 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 17:50:59,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125545811] [2023-08-29 17:50:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125545811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:59,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:59,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174655854] [2023-08-29 17:50:59,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:59,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:59,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:59,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:59,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:50:59,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 756 transitions, 20630 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:50:59,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:59,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:50:59,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:03,055 INFO L130 PetriNetUnfolder]: 2859/7681 cut-off events. [2023-08-29 17:51:03,055 INFO L131 PetriNetUnfolder]: For 198617/198930 co-relation queries the response was YES. [2023-08-29 17:51:03,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55946 conditions, 7681 events. 2859/7681 cut-off events. For 198617/198930 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 71693 event pairs, 436 based on Foata normal form. 210/7798 useless extension candidates. Maximal degree in co-relation 55845. Up to 1905 conditions per place. [2023-08-29 17:51:03,128 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 600 selfloop transitions, 458 changer transitions 2/1098 dead transitions. [2023-08-29 17:51:03,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 1098 transitions, 28104 flow [2023-08-29 17:51:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:51:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:51:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2703 transitions. [2023-08-29 17:51:03,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4319271332694152 [2023-08-29 17:51:03,131 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2703 transitions. [2023-08-29 17:51:03,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2703 transitions. [2023-08-29 17:51:03,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:03,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2703 transitions. [2023-08-29 17:51:03,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.07142857142858) internal successors, (2703), 14 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states 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 17:51:03,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:03,137 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:03,137 INFO L175 Difference]: Start difference. First operand has 289 places, 756 transitions, 20630 flow. Second operand 14 states and 2703 transitions. [2023-08-29 17:51:03,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 1098 transitions, 28104 flow [2023-08-29 17:51:04,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1098 transitions, 27851 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-29 17:51:04,339 INFO L231 Difference]: Finished difference. Result has 309 places, 849 transitions, 25182 flow [2023-08-29 17:51:04,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=20431, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25182, PETRI_PLACES=309, PETRI_TRANSITIONS=849} [2023-08-29 17:51:04,340 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 228 predicate places. [2023-08-29 17:51:04,340 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 849 transitions, 25182 flow [2023-08-29 17:51:04,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:04,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:04,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:04,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:51:04,341 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:04,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:04,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1402386963, now seen corresponding path program 11 times [2023-08-29 17:51:04,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:04,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764641718] [2023-08-29 17:51:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:04,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:04,677 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 17:51:04,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:04,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764641718] [2023-08-29 17:51:04,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764641718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:04,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:04,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:04,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867907622] [2023-08-29 17:51:04,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:04,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:04,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:04,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:04,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:05,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:51:05,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 849 transitions, 25182 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:05,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:05,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:51:05,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:09,118 INFO L130 PetriNetUnfolder]: 3037/8128 cut-off events. [2023-08-29 17:51:09,118 INFO L131 PetriNetUnfolder]: For 247947/248303 co-relation queries the response was YES. [2023-08-29 17:51:09,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62492 conditions, 8128 events. 3037/8128 cut-off events. For 247947/248303 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 76773 event pairs, 354 based on Foata normal form. 222/8258 useless extension candidates. Maximal degree in co-relation 62380. Up to 2533 conditions per place. [2023-08-29 17:51:09,201 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 471 selfloop transitions, 579 changer transitions 2/1090 dead transitions. [2023-08-29 17:51:09,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 1090 transitions, 30716 flow [2023-08-29 17:51:09,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:51:09,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:51:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2507 transitions. [2023-08-29 17:51:09,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4314231629667871 [2023-08-29 17:51:09,204 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2507 transitions. [2023-08-29 17:51:09,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2507 transitions. [2023-08-29 17:51:09,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:09,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2507 transitions. [2023-08-29 17:51:09,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 192.84615384615384) internal successors, (2507), 13 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states 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 17:51:09,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 447.0) internal successors, (6258), 14 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states 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 17:51:09,209 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 447.0) internal successors, (6258), 14 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states 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 17:51:09,209 INFO L175 Difference]: Start difference. First operand has 309 places, 849 transitions, 25182 flow. Second operand 13 states and 2507 transitions. [2023-08-29 17:51:09,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 1090 transitions, 30716 flow [2023-08-29 17:51:10,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1090 transitions, 30614 flow, removed 51 selfloop flow, removed 0 redundant places. [2023-08-29 17:51:10,958 INFO L231 Difference]: Finished difference. Result has 332 places, 901 transitions, 29242 flow [2023-08-29 17:51:10,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=25098, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=527, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29242, PETRI_PLACES=332, PETRI_TRANSITIONS=901} [2023-08-29 17:51:10,959 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 251 predicate places. [2023-08-29 17:51:10,960 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 901 transitions, 29242 flow [2023-08-29 17:51:10,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:10,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:10,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:10,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:51:10,960 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:10,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1428638313, now seen corresponding path program 12 times [2023-08-29 17:51:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:10,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871264464] [2023-08-29 17:51:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:10,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:11,325 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 17:51:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:11,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871264464] [2023-08-29 17:51:11,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871264464] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:11,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:11,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:11,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272554701] [2023-08-29 17:51:11,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:11,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:11,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:12,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:51:12,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 901 transitions, 29242 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:12,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:12,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:51:12,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:16,914 INFO L130 PetriNetUnfolder]: 3245/8734 cut-off events. [2023-08-29 17:51:16,914 INFO L131 PetriNetUnfolder]: For 321510/321894 co-relation queries the response was YES. [2023-08-29 17:51:16,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70725 conditions, 8734 events. 3245/8734 cut-off events. For 321510/321894 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 83998 event pairs, 402 based on Foata normal form. 244/8874 useless extension candidates. Maximal degree in co-relation 70602. Up to 2559 conditions per place. [2023-08-29 17:51:17,014 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 503 selfloop transitions, 607 changer transitions 2/1150 dead transitions. [2023-08-29 17:51:17,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1150 transitions, 35572 flow [2023-08-29 17:51:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:51:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:51:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2664 transitions. [2023-08-29 17:51:17,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42569511025886864 [2023-08-29 17:51:17,017 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2664 transitions. [2023-08-29 17:51:17,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2664 transitions. [2023-08-29 17:51:17,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:17,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2664 transitions. [2023-08-29 17:51:17,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 190.28571428571428) internal successors, (2664), 14 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states 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 17:51:17,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:17,023 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:17,023 INFO L175 Difference]: Start difference. First operand has 332 places, 901 transitions, 29242 flow. Second operand 14 states and 2664 transitions. [2023-08-29 17:51:17,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1150 transitions, 35572 flow [2023-08-29 17:51:19,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 1150 transitions, 35518 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-08-29 17:51:19,617 INFO L231 Difference]: Finished difference. Result has 357 places, 962 transitions, 33990 flow [2023-08-29 17:51:19,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=29188, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33990, PETRI_PLACES=357, PETRI_TRANSITIONS=962} [2023-08-29 17:51:19,618 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 276 predicate places. [2023-08-29 17:51:19,618 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 962 transitions, 33990 flow [2023-08-29 17:51:19,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:19,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:19,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:19,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:51:19,619 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:19,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:19,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1047909333, now seen corresponding path program 13 times [2023-08-29 17:51:19,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:19,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858359331] [2023-08-29 17:51:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:19,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:19,961 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 17:51:19,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:19,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858359331] [2023-08-29 17:51:19,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858359331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:19,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:19,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:19,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486976211] [2023-08-29 17:51:19,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:19,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:19,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:19,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:19,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:20,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:51:20,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 962 transitions, 33990 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:20,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:20,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:51:20,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:25,368 INFO L130 PetriNetUnfolder]: 3402/9226 cut-off events. [2023-08-29 17:51:25,368 INFO L131 PetriNetUnfolder]: For 398415/398684 co-relation queries the response was YES. [2023-08-29 17:51:25,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78075 conditions, 9226 events. 3402/9226 cut-off events. For 398415/398684 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 90339 event pairs, 488 based on Foata normal form. 139/9257 useless extension candidates. Maximal degree in co-relation 77940. Up to 2445 conditions per place. [2023-08-29 17:51:25,485 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 562 selfloop transitions, 630 changer transitions 2/1232 dead transitions. [2023-08-29 17:51:25,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1232 transitions, 40787 flow [2023-08-29 17:51:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:51:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:51:25,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2685 transitions. [2023-08-29 17:51:25,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290508149568552 [2023-08-29 17:51:25,488 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2685 transitions. [2023-08-29 17:51:25,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2685 transitions. [2023-08-29 17:51:25,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:25,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2685 transitions. [2023-08-29 17:51:25,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 191.78571428571428) internal successors, (2685), 14 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states 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 17:51:25,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:25,494 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:25,494 INFO L175 Difference]: Start difference. First operand has 357 places, 962 transitions, 33990 flow. Second operand 14 states and 2685 transitions. [2023-08-29 17:51:25,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1232 transitions, 40787 flow [2023-08-29 17:51:28,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1232 transitions, 40624 flow, removed 79 selfloop flow, removed 1 redundant places. [2023-08-29 17:51:28,932 INFO L231 Difference]: Finished difference. Result has 380 places, 1020 transitions, 38743 flow [2023-08-29 17:51:28,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=33859, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=572, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38743, PETRI_PLACES=380, PETRI_TRANSITIONS=1020} [2023-08-29 17:51:28,933 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 299 predicate places. [2023-08-29 17:51:28,933 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1020 transitions, 38743 flow [2023-08-29 17:51:28,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:28,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:28,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:28,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:51:28,934 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:28,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1392959553, now seen corresponding path program 14 times [2023-08-29 17:51:28,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:28,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116179892] [2023-08-29 17:51:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:29,273 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 17:51:29,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:29,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116179892] [2023-08-29 17:51:29,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116179892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:29,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:29,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:29,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909440079] [2023-08-29 17:51:29,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:29,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:30,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:51:30,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1020 transitions, 38743 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:30,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:30,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:51:30,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:35,458 INFO L130 PetriNetUnfolder]: 3554/9656 cut-off events. [2023-08-29 17:51:35,458 INFO L131 PetriNetUnfolder]: For 481160/481460 co-relation queries the response was YES. [2023-08-29 17:51:35,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85243 conditions, 9656 events. 3554/9656 cut-off events. For 481160/481460 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 95800 event pairs, 501 based on Foata normal form. 140/9681 useless extension candidates. Maximal degree in co-relation 85098. Up to 2757 conditions per place. [2023-08-29 17:51:35,582 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 554 selfloop transitions, 691 changer transitions 2/1285 dead transitions. [2023-08-29 17:51:35,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1285 transitions, 45464 flow [2023-08-29 17:51:35,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:51:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:51:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2698 transitions. [2023-08-29 17:51:35,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43112815596037074 [2023-08-29 17:51:35,585 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2698 transitions. [2023-08-29 17:51:35,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2698 transitions. [2023-08-29 17:51:35,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:35,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2698 transitions. [2023-08-29 17:51:35,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 192.71428571428572) internal successors, (2698), 14 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states 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 17:51:35,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:35,591 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states 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 17:51:35,592 INFO L175 Difference]: Start difference. First operand has 380 places, 1020 transitions, 38743 flow. Second operand 14 states and 2698 transitions. [2023-08-29 17:51:35,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1285 transitions, 45464 flow [2023-08-29 17:51:39,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 1285 transitions, 45329 flow, removed 57 selfloop flow, removed 1 redundant places. [2023-08-29 17:51:39,275 INFO L231 Difference]: Finished difference. Result has 403 places, 1073 transitions, 43687 flow [2023-08-29 17:51:39,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=38632, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43687, PETRI_PLACES=403, PETRI_TRANSITIONS=1073} [2023-08-29 17:51:39,276 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 322 predicate places. [2023-08-29 17:51:39,276 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1073 transitions, 43687 flow [2023-08-29 17:51:39,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states 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 17:51:39,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:39,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:39,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:51:39,277 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:39,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1218767647, now seen corresponding path program 1 times [2023-08-29 17:51:39,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:39,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197776739] [2023-08-29 17:51:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:39,719 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 17:51:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197776739] [2023-08-29 17:51:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197776739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:39,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:39,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828931638] [2023-08-29 17:51:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:39,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:39,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:39,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:39,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:40,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-29 17:51:40,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1073 transitions, 43687 flow. Second operand has 10 states, 10 states have (on average 172.2) internal successors, (1722), 10 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 17:51:40,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:40,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-29 17:51:40,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:46,534 INFO L130 PetriNetUnfolder]: 3684/10023 cut-off events. [2023-08-29 17:51:46,534 INFO L131 PetriNetUnfolder]: For 569086/569404 co-relation queries the response was YES. [2023-08-29 17:51:46,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92255 conditions, 10023 events. 3684/10023 cut-off events. For 569086/569404 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 100482 event pairs, 402 based on Foata normal form. 185/10084 useless extension candidates. Maximal degree in co-relation 92099. Up to 2756 conditions per place. [2023-08-29 17:51:46,679 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 588 selfloop transitions, 724 changer transitions 3/1353 dead transitions. [2023-08-29 17:51:46,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 1353 transitions, 50188 flow [2023-08-29 17:51:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:51:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:51:46,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3447 transitions. [2023-08-29 17:51:46,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42841163310961966 [2023-08-29 17:51:46,682 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3447 transitions. [2023-08-29 17:51:46,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3447 transitions. [2023-08-29 17:51:46,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:46,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3447 transitions. [2023-08-29 17:51:46,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 191.5) internal successors, (3447), 18 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states 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 17:51:46,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:51:46,690 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:51:46,690 INFO L175 Difference]: Start difference. First operand has 403 places, 1073 transitions, 43687 flow. Second operand 18 states and 3447 transitions. [2023-08-29 17:51:46,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 1353 transitions, 50188 flow [2023-08-29 17:51:51,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1353 transitions, 50045 flow, removed 43 selfloop flow, removed 3 redundant places. [2023-08-29 17:51:51,583 INFO L231 Difference]: Finished difference. Result has 429 places, 1116 transitions, 48432 flow [2023-08-29 17:51:51,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=43570, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=682, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=48432, PETRI_PLACES=429, PETRI_TRANSITIONS=1116} [2023-08-29 17:51:51,584 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 348 predicate places. [2023-08-29 17:51:51,584 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1116 transitions, 48432 flow [2023-08-29 17:51:51,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.2) internal successors, (1722), 10 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 17:51:51,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:51,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:51,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:51:51,585 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:51:51,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1078311815, now seen corresponding path program 1 times [2023-08-29 17:51:51,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:51,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266107293] [2023-08-29 17:51:51,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:51,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:51,775 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 17:51:51,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:51,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266107293] [2023-08-29 17:51:51,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266107293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:51,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:51,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:51:51,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291919134] [2023-08-29 17:51:51,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:51,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:51:51,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:51:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:51:51,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 447 [2023-08-29 17:51:51,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1116 transitions, 48432 flow. Second operand has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states 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 17:51:51,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:51,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 447 [2023-08-29 17:51:51,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:59,730 INFO L130 PetriNetUnfolder]: 6209/14894 cut-off events. [2023-08-29 17:51:59,730 INFO L131 PetriNetUnfolder]: For 833169/833479 co-relation queries the response was YES. [2023-08-29 17:51:59,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127358 conditions, 14894 events. 6209/14894 cut-off events. For 833169/833479 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 143057 event pairs, 2632 based on Foata normal form. 0/14564 useless extension candidates. Maximal degree in co-relation 127191. Up to 11607 conditions per place. [2023-08-29 17:51:59,923 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1020 selfloop transitions, 170 changer transitions 0/1387 dead transitions. [2023-08-29 17:51:59,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1387 transitions, 61198 flow [2023-08-29 17:51:59,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:51:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:51:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions. [2023-08-29 17:51:59,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4343773303504847 [2023-08-29 17:51:59,925 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions. [2023-08-29 17:51:59,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions. [2023-08-29 17:51:59,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:59,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions. [2023-08-29 17:51:59,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states 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 17:51:59,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:51:59,928 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:51:59,928 INFO L175 Difference]: Start difference. First operand has 429 places, 1116 transitions, 48432 flow. Second operand 6 states and 1165 transitions. [2023-08-29 17:51:59,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1387 transitions, 61198 flow [2023-08-29 17:52:08,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 1387 transitions, 60988 flow, removed 59 selfloop flow, removed 5 redundant places. [2023-08-29 17:52:08,180 INFO L231 Difference]: Finished difference. Result has 433 places, 1255 transitions, 52608 flow [2023-08-29 17:52:08,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=48290, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1018, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=52608, PETRI_PLACES=433, PETRI_TRANSITIONS=1255} [2023-08-29 17:52:08,181 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 352 predicate places. [2023-08-29 17:52:08,181 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1255 transitions, 52608 flow [2023-08-29 17:52:08,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states 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 17:52:08,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:08,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:08,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:52:08,182 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:08,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1718345549, now seen corresponding path program 1 times [2023-08-29 17:52:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:08,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958486883] [2023-08-29 17:52:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:08,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:08,372 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 17:52:08,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958486883] [2023-08-29 17:52:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958486883] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:08,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:08,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:52:08,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662328584] [2023-08-29 17:52:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:08,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:52:08,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:52:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:52:08,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 447 [2023-08-29 17:52:08,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1255 transitions, 52608 flow. Second operand has 6 states, 6 states have (on average 183.66666666666666) internal successors, (1102), 6 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states 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 17:52:08,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:08,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 447 [2023-08-29 17:52:08,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:17,706 INFO L130 PetriNetUnfolder]: 7377/18039 cut-off events. [2023-08-29 17:52:17,706 INFO L131 PetriNetUnfolder]: For 1092755/1093457 co-relation queries the response was YES. [2023-08-29 17:52:17,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163297 conditions, 18039 events. 7377/18039 cut-off events. For 1092755/1093457 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 183638 event pairs, 871 based on Foata normal form. 75/17618 useless extension candidates. Maximal degree in co-relation 163127. Up to 10029 conditions per place. [2023-08-29 17:52:18,045 INFO L137 encePairwiseOnDemand]: 425/447 looper letters, 1040 selfloop transitions, 752 changer transitions 4/2149 dead transitions. [2023-08-29 17:52:18,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 2149 transitions, 98689 flow [2023-08-29 17:52:18,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:52:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:52:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2023-08-29 17:52:18,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4679343773303505 [2023-08-29 17:52:18,047 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2023-08-29 17:52:18,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2023-08-29 17:52:18,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:18,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2023-08-29 17:52:18,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:18,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:52:18,050 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states 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 17:52:18,051 INFO L175 Difference]: Start difference. First operand has 433 places, 1255 transitions, 52608 flow. Second operand 6 states and 1255 transitions. [2023-08-29 17:52:18,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 2149 transitions, 98689 flow [2023-08-29 17:52:32,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 2149 transitions, 98217 flow, removed 236 selfloop flow, removed 0 redundant places. [2023-08-29 17:52:32,360 INFO L231 Difference]: Finished difference. Result has 443 places, 1829 transitions, 85274 flow [2023-08-29 17:52:32,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=52136, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85274, PETRI_PLACES=443, PETRI_TRANSITIONS=1829} [2023-08-29 17:52:32,362 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 362 predicate places. [2023-08-29 17:52:32,362 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 1829 transitions, 85274 flow [2023-08-29 17:52:32,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.66666666666666) internal successors, (1102), 6 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states 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 17:52:32,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:32,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:32,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 17:52:32,363 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:52:32,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1773728333, now seen corresponding path program 1 times [2023-08-29 17:52:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:32,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157418902] [2023-08-29 17:52:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:32,701 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 17:52:32,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:32,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157418902] [2023-08-29 17:52:32,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157418902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:32,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:32,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:52:32,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596545693] [2023-08-29 17:52:32,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:32,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:52:32,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:32,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:52:32,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:52:33,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 447 [2023-08-29 17:52:33,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1829 transitions, 85274 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states 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 17:52:33,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:33,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 447 [2023-08-29 17:52:33,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:48,865 INFO L130 PetriNetUnfolder]: 8416/19833 cut-off events. [2023-08-29 17:52:48,866 INFO L131 PetriNetUnfolder]: For 1170054/1170717 co-relation queries the response was YES. [2023-08-29 17:52:49,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189808 conditions, 19833 events. 8416/19833 cut-off events. For 1170054/1170717 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 196563 event pairs, 2075 based on Foata normal form. 106/19614 useless extension candidates. Maximal degree in co-relation 189633. Up to 12673 conditions per place. [2023-08-29 17:52:49,147 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1281 selfloop transitions, 488 changer transitions 2/2109 dead transitions. [2023-08-29 17:52:49,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 2109 transitions, 97583 flow [2023-08-29 17:52:49,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:52:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:52:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2788 transitions. [2023-08-29 17:52:49,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41580909768829233 [2023-08-29 17:52:49,149 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2788 transitions. [2023-08-29 17:52:49,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2788 transitions. [2023-08-29 17:52:49,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:49,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2788 transitions. [2023-08-29 17:52:49,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.86666666666667) internal successors, (2788), 15 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states 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 17:52:49,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states 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 17:52:49,155 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states 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 17:52:49,155 INFO L175 Difference]: Start difference. First operand has 443 places, 1829 transitions, 85274 flow. Second operand 15 states and 2788 transitions. [2023-08-29 17:52:49,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 2109 transitions, 97583 flow [2023-08-29 17:53:06,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 2109 transitions, 96779 flow, removed 402 selfloop flow, removed 0 redundant places. [2023-08-29 17:53:06,390 INFO L231 Difference]: Finished difference. Result has 461 places, 1919 transitions, 89455 flow [2023-08-29 17:53:06,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=84494, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=89455, PETRI_PLACES=461, PETRI_TRANSITIONS=1919} [2023-08-29 17:53:06,403 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 380 predicate places. [2023-08-29 17:53:06,403 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 1919 transitions, 89455 flow [2023-08-29 17:53:06,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states 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 17:53:06,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:06,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:06,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 17:53:06,404 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:53:06,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:06,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1473536571, now seen corresponding path program 1 times [2023-08-29 17:53:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:06,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067520437] [2023-08-29 17:53:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:07,249 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 17:53:07,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:07,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067520437] [2023-08-29 17:53:07,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067520437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:07,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:07,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 17:53:07,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784605342] [2023-08-29 17:53:07,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:07,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:53:07,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:07,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:53:07,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:53:08,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 17:53:08,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1919 transitions, 89455 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:53:08,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:08,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 17:53:08,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:24,608 INFO L130 PetriNetUnfolder]: 8780/20277 cut-off events. [2023-08-29 17:53:24,609 INFO L131 PetriNetUnfolder]: For 1212837/1213428 co-relation queries the response was YES. [2023-08-29 17:53:25,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195716 conditions, 20277 events. 8780/20277 cut-off events. For 1212837/1213428 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 198453 event pairs, 1730 based on Foata normal form. 32/19980 useless extension candidates. Maximal degree in co-relation 195536. Up to 10564 conditions per place. [2023-08-29 17:53:25,096 INFO L137 encePairwiseOnDemand]: 430/447 looper letters, 1174 selfloop transitions, 567 changer transitions 0/2150 dead transitions. [2023-08-29 17:53:25,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 2150 transitions, 99421 flow [2023-08-29 17:53:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 17:53:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 17:53:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3170 transitions. [2023-08-29 17:53:25,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3732485576357 [2023-08-29 17:53:25,099 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3170 transitions. [2023-08-29 17:53:25,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3170 transitions. [2023-08-29 17:53:25,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:25,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3170 transitions. [2023-08-29 17:53:25,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 166.8421052631579) internal successors, (3170), 19 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states 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 17:53:25,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 447.0) internal successors, (8940), 20 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states 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 17:53:25,129 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 447.0) internal successors, (8940), 20 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states 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 17:53:25,129 INFO L175 Difference]: Start difference. First operand has 461 places, 1919 transitions, 89455 flow. Second operand 19 states and 3170 transitions. [2023-08-29 17:53:25,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 2150 transitions, 99421 flow [2023-08-29 17:53:43,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 2150 transitions, 99344 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-29 17:53:43,504 INFO L231 Difference]: Finished difference. Result has 485 places, 1992 transitions, 94557 flow [2023-08-29 17:53:43,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=89378, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=497, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=94557, PETRI_PLACES=485, PETRI_TRANSITIONS=1992} [2023-08-29 17:53:43,506 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 404 predicate places. [2023-08-29 17:53:43,506 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 1992 transitions, 94557 flow [2023-08-29 17:53:43,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:53:43,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:43,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:43,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 17:53:43,507 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:53:43,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:43,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1789354223, now seen corresponding path program 2 times [2023-08-29 17:53:43,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:43,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830847140] [2023-08-29 17:53:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:43,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:44,170 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 17:53:44,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830847140] [2023-08-29 17:53:44,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830847140] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:44,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:44,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 17:53:44,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550232052] [2023-08-29 17:53:44,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:44,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:53:44,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:53:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:53:45,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 17:53:45,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1992 transitions, 94557 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:53:45,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:45,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 17:53:45,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:05,919 INFO L130 PetriNetUnfolder]: 11131/25721 cut-off events. [2023-08-29 17:54:05,919 INFO L131 PetriNetUnfolder]: For 1668462/1669203 co-relation queries the response was YES. [2023-08-29 17:54:06,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261845 conditions, 25721 events. 11131/25721 cut-off events. For 1668462/1669203 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 261137 event pairs, 2808 based on Foata normal form. 0/25368 useless extension candidates. Maximal degree in co-relation 261655. Up to 11581 conditions per place. [2023-08-29 17:54:06,382 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1974 selfloop transitions, 359 changer transitions 0/2742 dead transitions. [2023-08-29 17:54:06,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 2742 transitions, 125166 flow [2023-08-29 17:54:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:54:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:54:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2881 transitions. [2023-08-29 17:54:06,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37912883274115017 [2023-08-29 17:54:06,385 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2881 transitions. [2023-08-29 17:54:06,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2881 transitions. [2023-08-29 17:54:06,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:06,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2881 transitions. [2023-08-29 17:54:06,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 169.47058823529412) internal successors, (2881), 17 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states 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 17:54:06,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states 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 17:54:06,391 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states 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 17:54:06,391 INFO L175 Difference]: Start difference. First operand has 485 places, 1992 transitions, 94557 flow. Second operand 17 states and 2881 transitions. [2023-08-29 17:54:06,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 2742 transitions, 125166 flow [2023-08-29 17:54:35,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 2742 transitions, 124739 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-29 17:54:35,287 INFO L231 Difference]: Finished difference. Result has 506 places, 2222 transitions, 107847 flow [2023-08-29 17:54:35,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=94209, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=107847, PETRI_PLACES=506, PETRI_TRANSITIONS=2222} [2023-08-29 17:54:35,288 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 425 predicate places. [2023-08-29 17:54:35,288 INFO L495 AbstractCegarLoop]: Abstraction has has 506 places, 2222 transitions, 107847 flow [2023-08-29 17:54:35,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:54:35,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:54:35,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:54:35,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 17:54:35,289 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:54:35,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:54:35,290 INFO L85 PathProgramCache]: Analyzing trace with hash 268536179, now seen corresponding path program 3 times [2023-08-29 17:54:35,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:54:35,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859514090] [2023-08-29 17:54:35,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:54:35,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:54:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:54:35,855 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 17:54:35,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:54:35,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859514090] [2023-08-29 17:54:35,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859514090] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:54:35,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:54:35,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 17:54:35,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724466928] [2023-08-29 17:54:35,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:54:35,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:54:35,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:54:35,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:54:35,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:54:36,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 17:54:36,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 2222 transitions, 107847 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:54:36,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:54:36,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 17:54:36,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:55:05,590 INFO L130 PetriNetUnfolder]: 14586/33285 cut-off events. [2023-08-29 17:55:05,590 INFO L131 PetriNetUnfolder]: For 2211583/2212597 co-relation queries the response was YES. [2023-08-29 17:55:06,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340606 conditions, 33285 events. 14586/33285 cut-off events. For 2211583/2212597 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 349582 event pairs, 3408 based on Foata normal form. 35/32972 useless extension candidates. Maximal degree in co-relation 340404. Up to 15822 conditions per place. [2023-08-29 17:55:06,669 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 2163 selfloop transitions, 548 changer transitions 0/3120 dead transitions. [2023-08-29 17:55:06,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 3120 transitions, 149475 flow [2023-08-29 17:55:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:55:06,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:55:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2533 transitions. [2023-08-29 17:55:06,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-08-29 17:55:06,673 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2533 transitions. [2023-08-29 17:55:06,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2533 transitions. [2023-08-29 17:55:06,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:55:06,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2533 transitions. [2023-08-29 17:55:06,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 168.86666666666667) internal successors, (2533), 15 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states 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 17:55:06,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states 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 17:55:06,679 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states 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 17:55:06,680 INFO L175 Difference]: Start difference. First operand has 506 places, 2222 transitions, 107847 flow. Second operand 15 states and 2533 transitions. [2023-08-29 17:55:06,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 3120 transitions, 149475 flow [2023-08-29 17:55:50,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 3120 transitions, 149404 flow, removed 30 selfloop flow, removed 2 redundant places. [2023-08-29 17:55:51,018 INFO L231 Difference]: Finished difference. Result has 529 places, 2486 transitions, 124953 flow [2023-08-29 17:55:51,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=107777, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=124953, PETRI_PLACES=529, PETRI_TRANSITIONS=2486} [2023-08-29 17:55:51,020 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 448 predicate places. [2023-08-29 17:55:51,021 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 2486 transitions, 124953 flow [2023-08-29 17:55:51,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:55:51,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:55:51,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:55:51,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 17:55:51,021 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:55:51,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:55:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1339649303, now seen corresponding path program 4 times [2023-08-29 17:55:51,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:55:51,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543978147] [2023-08-29 17:55:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:55:51,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:55:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:55:51,937 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 17:55:51,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:55:51,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543978147] [2023-08-29 17:55:51,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543978147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:55:51,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:55:51,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 17:55:51,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439721204] [2023-08-29 17:55:51,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:55:51,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:55:51,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:55:51,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:55:51,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:55:52,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 17:55:52,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 2486 transitions, 124953 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:55:52,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:55:52,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 17:55:52,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:56:28,272 INFO L130 PetriNetUnfolder]: 14707/33470 cut-off events. [2023-08-29 17:56:28,273 INFO L131 PetriNetUnfolder]: For 2337308/2338376 co-relation queries the response was YES. [2023-08-29 17:56:28,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352620 conditions, 33470 events. 14707/33470 cut-off events. For 2337308/2338376 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 350016 event pairs, 3198 based on Foata normal form. 45/33160 useless extension candidates. Maximal degree in co-relation 352406. Up to 19098 conditions per place. [2023-08-29 17:56:29,070 INFO L137 encePairwiseOnDemand]: 434/447 looper letters, 1519 selfloop transitions, 824 changer transitions 0/2752 dead transitions. [2023-08-29 17:56:29,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 2752 transitions, 136905 flow [2023-08-29 17:56:29,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:56:29,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:56:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3027 transitions. [2023-08-29 17:56:29,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3762117822520507 [2023-08-29 17:56:29,073 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3027 transitions. [2023-08-29 17:56:29,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3027 transitions. [2023-08-29 17:56:29,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:56:29,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3027 transitions. [2023-08-29 17:56:29,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states 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 17:56:29,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:56:29,080 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:56:29,080 INFO L175 Difference]: Start difference. First operand has 529 places, 2486 transitions, 124953 flow. Second operand 18 states and 3027 transitions. [2023-08-29 17:56:29,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 2752 transitions, 136905 flow [2023-08-29 17:57:14,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 2752 transitions, 136622 flow, removed 110 selfloop flow, removed 1 redundant places. [2023-08-29 17:57:14,717 INFO L231 Difference]: Finished difference. Result has 554 places, 2520 transitions, 128200 flow [2023-08-29 17:57:14,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=124670, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=790, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=128200, PETRI_PLACES=554, PETRI_TRANSITIONS=2520} [2023-08-29 17:57:14,719 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 473 predicate places. [2023-08-29 17:57:14,719 INFO L495 AbstractCegarLoop]: Abstraction has has 554 places, 2520 transitions, 128200 flow [2023-08-29 17:57:14,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:57:14,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:57:14,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:57:14,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 17:57:14,720 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:57:14,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:57:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2103470079, now seen corresponding path program 5 times [2023-08-29 17:57:14,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:57:14,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816572807] [2023-08-29 17:57:14,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:57:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:57:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:57:15,365 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 17:57:15,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:57:15,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816572807] [2023-08-29 17:57:15,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816572807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:57:15,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:57:15,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:57:15,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789227025] [2023-08-29 17:57:15,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:57:15,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:57:15,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:57:15,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:57:15,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:57:16,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 17:57:16,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 2520 transitions, 128200 flow. Second operand has 12 states, 12 states have (on average 157.5) internal successors, (1890), 12 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 17:57:16,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:57:16,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 17:57:16,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:57:52,634 INFO L130 PetriNetUnfolder]: 14736/33586 cut-off events. [2023-08-29 17:57:52,634 INFO L131 PetriNetUnfolder]: For 2415275/2416365 co-relation queries the response was YES. [2023-08-29 17:57:54,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358194 conditions, 33586 events. 14736/33586 cut-off events. For 2415275/2416365 co-relation queries the response was YES. Maximal size of possible extension queue 1077. Compared 351958 event pairs, 3597 based on Foata normal form. 74/33303 useless extension candidates. Maximal degree in co-relation 357970. Up to 19484 conditions per place. [2023-08-29 17:57:54,199 INFO L137 encePairwiseOnDemand]: 430/447 looper letters, 1319 selfloop transitions, 938 changer transitions 0/2666 dead transitions. [2023-08-29 17:57:54,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 2666 transitions, 135344 flow [2023-08-29 17:57:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:57:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:57:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3016 transitions. [2023-08-29 17:57:54,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37484464330101913 [2023-08-29 17:57:54,202 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3016 transitions. [2023-08-29 17:57:54,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3016 transitions. [2023-08-29 17:57:54,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:57:54,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3016 transitions. [2023-08-29 17:57:54,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 167.55555555555554) internal successors, (3016), 18 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states 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 17:57:54,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:57:54,208 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states 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 17:57:54,208 INFO L175 Difference]: Start difference. First operand has 554 places, 2520 transitions, 128200 flow. Second operand 18 states and 3016 transitions. [2023-08-29 17:57:54,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 2666 transitions, 135344 flow [2023-08-29 17:58:37,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 2666 transitions, 134996 flow, removed 118 selfloop flow, removed 6 redundant places. [2023-08-29 17:58:37,556 INFO L231 Difference]: Finished difference. Result has 569 places, 2529 transitions, 130090 flow [2023-08-29 17:58:37,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=127860, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=929, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=130090, PETRI_PLACES=569, PETRI_TRANSITIONS=2529} [2023-08-29 17:58:37,558 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 488 predicate places. [2023-08-29 17:58:37,558 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 2529 transitions, 130090 flow [2023-08-29 17:58:37,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 157.5) internal successors, (1890), 12 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states 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 17:58:37,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:58:37,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:58:37,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 17:58:37,559 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-29 17:58:37,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:58:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 51641875, now seen corresponding path program 6 times [2023-08-29 17:58:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:58:37,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486459765] [2023-08-29 17:58:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:58:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:58:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:58:38,173 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 17:58:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:58:38,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486459765] [2023-08-29 17:58:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486459765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:58:38,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:58:38,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-29 17:58:38,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948848261] [2023-08-29 17:58:38,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:58:38,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:58:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:58:38,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:58:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:58:39,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-29 17:58:39,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 2529 transitions, 130090 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states 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 17:58:39,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:58:39,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-29 17:58:39,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15