./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:13:22,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:13:22,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:13:22,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:13:22,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:13:22,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:13:22,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:13:22,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:13:22,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:13:22,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:13:22,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:13:22,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:13:22,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:13:22,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:13:22,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:13:22,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:13:22,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:13:22,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:13:22,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:13:22,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:13:22,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:13:22,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:13:22,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:13:22,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:13:22,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:13:22,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:13:22,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:13:22,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:13:22,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:13:22,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:13:22,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:13:22,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:13:22,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:13:22,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:13:22,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:13:22,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:13:22,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:13:22,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:13:22,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:13:22,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:13:22,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:13:22,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:13:22,525 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:13:22,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:13:22,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:13:22,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:13:22,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:13:22,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:13:22,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:13:22,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:13:22,529 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:13:22,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:13:22,530 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:13:22,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:13:22,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:13:22,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:13:22,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:13:22,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:13:22,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:13:22,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:13:22,531 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:13:22,532 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:13:22,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:13:22,532 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:13:22,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:13:22,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:13:22,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:13:22,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:13:22,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:13:22,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:13:22,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:13:22,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:13:22,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:13:22,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:13:22,534 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:13:22,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:13:22,535 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:13:22,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:13:22,535 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:13:22,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:13:22,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:13:22,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:13:22,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:13:22,878 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:13:22,879 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:13:22,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-08-29 03:13:23,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:13:24,237 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:13:24,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-08-29 03:13:24,255 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52fdc812/fd4e1bd492294c43941b94d1a77d312a/FLAG8ce456e17 [2023-08-29 03:13:24,269 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52fdc812/fd4e1bd492294c43941b94d1a77d312a [2023-08-29 03:13:24,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:13:24,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:13:24,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:13:24,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:13:24,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:13:24,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:13:24" (1/1) ... [2023-08-29 03:13:24,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54028bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:24, skipping insertion in model container [2023-08-29 03:13:24,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:13:24" (1/1) ... [2023-08-29 03:13:24,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:13:24,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:13:24,905 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-08-29 03:13:24,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:13:25,002 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:13:25,042 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-08-29 03:13:25,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:13:25,161 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:13:25,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25 WrapperNode [2023-08-29 03:13:25,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:13:25,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:13:25,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:13:25,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:13:25,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,262 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 408 [2023-08-29 03:13:25,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:13:25,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:13:25,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:13:25,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:13:25,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:13:25,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:13:25,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:13:25,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:13:25,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2023-08-29 03:13:25,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:13:25,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:13:25,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:13:25,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:13:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:13:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 03:13:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-29 03:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:13:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 03:13:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 03:13:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 03:13:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:13:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:13:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:13:25,440 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:13:25,602 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:13:25,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:13:26,119 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:13:26,127 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:13:26,128 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-08-29 03:13:26,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:26 BoogieIcfgContainer [2023-08-29 03:13:26,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:13:26,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:13:26,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:13:26,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:13:26,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:13:24" (1/3) ... [2023-08-29 03:13:26,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588cd07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:13:26, skipping insertion in model container [2023-08-29 03:13:26,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (2/3) ... [2023-08-29 03:13:26,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588cd07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:13:26, skipping insertion in model container [2023-08-29 03:13:26,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:26" (3/3) ... [2023-08-29 03:13:26,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-08-29 03:13:26,144 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:13:26,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:13:26,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-29 03:13:26,154 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:13:26,246 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 03:13:26,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 410 places, 436 transitions, 880 flow [2023-08-29 03:13:26,532 INFO L130 PetriNetUnfolder]: 45/634 cut-off events. [2023-08-29 03:13:26,533 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:13:26,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 634 events. 45/634 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2042 event pairs, 0 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2023-08-29 03:13:26,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 410 places, 436 transitions, 880 flow [2023-08-29 03:13:26,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 410 places, 436 transitions, 880 flow [2023-08-29 03:13:26,561 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:13:26,574 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 410 places, 436 transitions, 880 flow [2023-08-29 03:13:26,576 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 410 places, 436 transitions, 880 flow [2023-08-29 03:13:26,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 410 places, 436 transitions, 880 flow [2023-08-29 03:13:26,683 INFO L130 PetriNetUnfolder]: 45/634 cut-off events. [2023-08-29 03:13:26,684 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:13:26,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 634 events. 45/634 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2042 event pairs, 0 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2023-08-29 03:13:26,720 INFO L119 LiptonReduction]: Number of co-enabled transitions 60792 [2023-08-29 03:13:57,225 WARN L222 SmtUtils]: Spent 19.78s on a formula simplification. DAG size of input: 250 DAG size of output: 248 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:14:15,654 WARN L222 SmtUtils]: Spent 14.84s on a formula simplification. DAG size of input: 250 DAG size of output: 248 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:14:22,708 WARN L222 SmtUtils]: Spent 7.05s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:14:22,731 INFO L134 LiptonReduction]: Checked pairs total: 401098 [2023-08-29 03:14:22,732 INFO L136 LiptonReduction]: Total number of compositions: 242 [2023-08-29 03:14:22,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:14:22,751 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;@38a916e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:14:22,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-29 03:14:22,753 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:14:22,753 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:14:22,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:22,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:14:22,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:22,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:22,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1411, now seen corresponding path program 1 times [2023-08-29 03:14:22,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:22,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812971441] [2023-08-29 03:14:22,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:22,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:22,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:22,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:22,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812971441] [2023-08-29 03:14:22,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812971441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:22,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:22,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:14:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137114133] [2023-08-29 03:14:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:22,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:14:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:22,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:14:22,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:14:22,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 678 [2023-08-29 03:14:22,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 233 transitions, 474 flow. Second operand has 2 states, 2 states have (on average 407.5) internal successors, (815), 2 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:22,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:22,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 678 [2023-08-29 03:14:22,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:23,673 INFO L130 PetriNetUnfolder]: 1171/4743 cut-off events. [2023-08-29 03:14:23,674 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:14:23,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7034 conditions, 4743 events. 1171/4743 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 37927 event pairs, 1073 based on Foata normal form. 236/4581 useless extension candidates. Maximal degree in co-relation 6863. Up to 2284 conditions per place. [2023-08-29 03:14:23,695 INFO L137 encePairwiseOnDemand]: 652/678 looper letters, 71 selfloop transitions, 0 changer transitions 0/207 dead transitions. [2023-08-29 03:14:23,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 564 flow [2023-08-29 03:14:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:14:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:14:23,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 911 transitions. [2023-08-29 03:14:23,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6718289085545722 [2023-08-29 03:14:23,711 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 911 transitions. [2023-08-29 03:14:23,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 911 transitions. [2023-08-29 03:14:23,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:23,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 911 transitions. [2023-08-29 03:14:23,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:23,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 678.0) internal successors, (2034), 3 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:23,729 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 678.0) internal successors, (2034), 3 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:23,731 INFO L175 Difference]: Start difference. First operand has 210 places, 233 transitions, 474 flow. Second operand 2 states and 911 transitions. [2023-08-29 03:14:23,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 564 flow [2023-08-29 03:14:23,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:14:23,742 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 422 flow [2023-08-29 03:14:23,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=422, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2023-08-29 03:14:23,748 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2023-08-29 03:14:23,748 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 422 flow [2023-08-29 03:14:23,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 407.5) internal successors, (815), 2 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:23,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:23,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:23,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:14:23,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:23,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:23,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1924689124, now seen corresponding path program 1 times [2023-08-29 03:14:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:23,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076330676] [2023-08-29 03:14:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:23,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:23,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076330676] [2023-08-29 03:14:23,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076330676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:23,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:23,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:14:23,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561345131] [2023-08-29 03:14:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:23,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:14:23,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:23,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:14:23,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:14:24,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 678 [2023-08-29 03:14:24,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:24,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:24,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 678 [2023-08-29 03:14:24,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:24,742 INFO L130 PetriNetUnfolder]: 1134/4711 cut-off events. [2023-08-29 03:14:24,742 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:14:24,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6997 conditions, 4711 events. 1134/4711 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 38732 event pairs, 0 based on Foata normal form. 0/4367 useless extension candidates. Maximal degree in co-relation 6993. Up to 2218 conditions per place. [2023-08-29 03:14:24,763 INFO L137 encePairwiseOnDemand]: 675/678 looper letters, 99 selfloop transitions, 2 changer transitions 0/237 dead transitions. [2023-08-29 03:14:24,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 237 transitions, 684 flow [2023-08-29 03:14:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:14:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:14:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2023-08-29 03:14:24,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.644542772861357 [2023-08-29 03:14:24,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2023-08-29 03:14:24,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2023-08-29 03:14:24,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:24,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2023-08-29 03:14:24,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:24,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 678.0) internal successors, (2712), 4 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:24,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 678.0) internal successors, (2712), 4 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:24,779 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 422 flow. Second operand 3 states and 1311 transitions. [2023-08-29 03:14:24,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 237 transitions, 684 flow [2023-08-29 03:14:24,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 237 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:14:24,786 INFO L231 Difference]: Finished difference. Result has 210 places, 207 transitions, 430 flow [2023-08-29 03:14:24,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=210, PETRI_TRANSITIONS=207} [2023-08-29 03:14:24,787 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2023-08-29 03:14:24,787 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 207 transitions, 430 flow [2023-08-29 03:14:24,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:24,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:24,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:24,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:14:24,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:24,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:24,789 INFO L85 PathProgramCache]: Analyzing trace with hash -613903165, now seen corresponding path program 1 times [2023-08-29 03:14:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:24,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422576896] [2023-08-29 03:14:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:24,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:25,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:25,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422576896] [2023-08-29 03:14:25,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422576896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:25,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:25,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:25,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734253606] [2023-08-29 03:14:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:25,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:25,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:25,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:25,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 678 [2023-08-29 03:14:25,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 207 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:25,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:25,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 678 [2023-08-29 03:14:25,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:27,945 INFO L130 PetriNetUnfolder]: 5992/13739 cut-off events. [2023-08-29 03:14:27,946 INFO L131 PetriNetUnfolder]: For 125/125 co-relation queries the response was YES. [2023-08-29 03:14:27,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25734 conditions, 13739 events. 5992/13739 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 98458 event pairs, 5044 based on Foata normal form. 0/12975 useless extension candidates. Maximal degree in co-relation 25728. Up to 11311 conditions per place. [2023-08-29 03:14:28,040 INFO L137 encePairwiseOnDemand]: 616/678 looper letters, 286 selfloop transitions, 229 changer transitions 0/567 dead transitions. [2023-08-29 03:14:28,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 567 transitions, 2200 flow [2023-08-29 03:14:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:28,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2274 transitions. [2023-08-29 03:14:28,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5589970501474927 [2023-08-29 03:14:28,047 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2274 transitions. [2023-08-29 03:14:28,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2274 transitions. [2023-08-29 03:14:28,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:28,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2274 transitions. [2023-08-29 03:14:28,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 379.0) internal successors, (2274), 6 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,064 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,065 INFO L175 Difference]: Start difference. First operand has 210 places, 207 transitions, 430 flow. Second operand 6 states and 2274 transitions. [2023-08-29 03:14:28,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 567 transitions, 2200 flow [2023-08-29 03:14:28,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 567 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:14:28,076 INFO L231 Difference]: Finished difference. Result has 217 places, 435 transitions, 1694 flow [2023-08-29 03:14:28,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1694, PETRI_PLACES=217, PETRI_TRANSITIONS=435} [2023-08-29 03:14:28,077 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, 7 predicate places. [2023-08-29 03:14:28,078 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 435 transitions, 1694 flow [2023-08-29 03:14:28,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:28,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:28,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:14:28,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:28,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:28,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1676310574, now seen corresponding path program 1 times [2023-08-29 03:14:28,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:28,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193538271] [2023-08-29 03:14:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:28,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:28,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193538271] [2023-08-29 03:14:28,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193538271] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:14:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309736812] [2023-08-29 03:14:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:28,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:14:28,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:14:28,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:14:28,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:14:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:28,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:14:28,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:14:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:28,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:14:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:28,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309736812] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:14:28,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:14:28,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 03:14:28,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151510311] [2023-08-29 03:14:28,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:14:28,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 03:14:28,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:28,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 03:14:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 03:14:28,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 678 [2023-08-29 03:14:28,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 435 transitions, 1694 flow. Second operand has 7 states, 7 states have (on average 404.14285714285717) internal successors, (2829), 7 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:28,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 678 [2023-08-29 03:14:28,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:28,583 INFO L130 PetriNetUnfolder]: 61/314 cut-off events. [2023-08-29 03:14:28,583 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-29 03:14:28,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 314 events. 61/314 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 822 event pairs, 26 based on Foata normal form. 30/328 useless extension candidates. Maximal degree in co-relation 516. Up to 118 conditions per place. [2023-08-29 03:14:28,585 INFO L137 encePairwiseOnDemand]: 675/678 looper letters, 51 selfloop transitions, 2 changer transitions 11/119 dead transitions. [2023-08-29 03:14:28,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 119 transitions, 395 flow [2023-08-29 03:14:28,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:14:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:14:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1672 transitions. [2023-08-29 03:14:28,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.616519174041298 [2023-08-29 03:14:28,590 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1672 transitions. [2023-08-29 03:14:28,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1672 transitions. [2023-08-29 03:14:28,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:28,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1672 transitions. [2023-08-29 03:14:28,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 418.0) internal successors, (1672), 4 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 678.0) internal successors, (3390), 5 states have internal predecessors, (3390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,603 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 678.0) internal successors, (3390), 5 states have internal predecessors, (3390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,604 INFO L175 Difference]: Start difference. First operand has 217 places, 435 transitions, 1694 flow. Second operand 4 states and 1672 transitions. [2023-08-29 03:14:28,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 119 transitions, 395 flow [2023-08-29 03:14:28,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 119 transitions, 369 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-08-29 03:14:28,607 INFO L231 Difference]: Finished difference. Result has 95 places, 83 transitions, 175 flow [2023-08-29 03:14:28,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2023-08-29 03:14:28,609 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -115 predicate places. [2023-08-29 03:14:28,609 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 175 flow [2023-08-29 03:14:28,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 404.14285714285717) internal successors, (2829), 7 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:28,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:28,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:28,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:14:28,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:14:28,822 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:28,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash -57149152, now seen corresponding path program 1 times [2023-08-29 03:14:28,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:28,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720921159] [2023-08-29 03:14:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:28,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720921159] [2023-08-29 03:14:29,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720921159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:29,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:29,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074728094] [2023-08-29 03:14:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:29,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:29,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:29,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:29,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:29,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 678 [2023-08-29 03:14:29,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 295.1666666666667) internal successors, (1771), 6 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:29,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:29,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 678 [2023-08-29 03:14:29,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:29,866 INFO L130 PetriNetUnfolder]: 114/352 cut-off events. [2023-08-29 03:14:29,867 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-08-29 03:14:29,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 352 events. 114/352 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 777 event pairs, 106 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 705. Up to 271 conditions per place. [2023-08-29 03:14:29,868 INFO L137 encePairwiseOnDemand]: 672/678 looper letters, 64 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2023-08-29 03:14:29,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 90 transitions, 335 flow [2023-08-29 03:14:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1828 transitions. [2023-08-29 03:14:29,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44936086529006886 [2023-08-29 03:14:29,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1828 transitions. [2023-08-29 03:14:29,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1828 transitions. [2023-08-29 03:14:29,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:29,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1828 transitions. [2023-08-29 03:14:29,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.6666666666667) internal successors, (1828), 6 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:29,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:29,886 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:29,886 INFO L175 Difference]: Start difference. First operand has 95 places, 83 transitions, 175 flow. Second operand 6 states and 1828 transitions. [2023-08-29 03:14:29,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 90 transitions, 335 flow [2023-08-29 03:14:29,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 90 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:14:29,889 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 180 flow [2023-08-29 03:14:29,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2023-08-29 03:14:29,889 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -118 predicate places. [2023-08-29 03:14:29,890 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 180 flow [2023-08-29 03:14:29,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.1666666666667) internal successors, (1771), 6 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:29,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:29,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:29,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:14:29,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:29,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:29,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1601344820, now seen corresponding path program 1 times [2023-08-29 03:14:29,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:29,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710968311] [2023-08-29 03:14:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:30,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:30,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:30,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710968311] [2023-08-29 03:14:30,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710968311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:30,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:30,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:30,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507893256] [2023-08-29 03:14:30,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:30,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:30,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:30,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:30,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:31,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 678 [2023-08-29 03:14:31,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 341.8333333333333) internal successors, (2051), 6 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:31,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:31,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 678 [2023-08-29 03:14:31,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:31,198 INFO L130 PetriNetUnfolder]: 100/335 cut-off events. [2023-08-29 03:14:31,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:14:31,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 335 events. 100/335 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 743 event pairs, 90 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 660. Up to 231 conditions per place. [2023-08-29 03:14:31,200 INFO L137 encePairwiseOnDemand]: 672/678 looper letters, 57 selfloop transitions, 5 changer transitions 0/89 dead transitions. [2023-08-29 03:14:31,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 322 flow [2023-08-29 03:14:31,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2091 transitions. [2023-08-29 03:14:31,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140117994100295 [2023-08-29 03:14:31,206 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2091 transitions. [2023-08-29 03:14:31,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2091 transitions. [2023-08-29 03:14:31,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:31,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2091 transitions. [2023-08-29 03:14:31,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:31,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:31,217 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:31,217 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 180 flow. Second operand 6 states and 2091 transitions. [2023-08-29 03:14:31,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 322 flow [2023-08-29 03:14:31,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 312 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:14:31,220 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 178 flow [2023-08-29 03:14:31,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2023-08-29 03:14:31,221 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -119 predicate places. [2023-08-29 03:14:31,221 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 178 flow [2023-08-29 03:14:31,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.8333333333333) internal successors, (2051), 6 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:31,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:31,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:31,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:14:31,222 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:31,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:31,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1714251448, now seen corresponding path program 1 times [2023-08-29 03:14:31,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:31,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248184474] [2023-08-29 03:14:31,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:31,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:31,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:31,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248184474] [2023-08-29 03:14:31,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248184474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:31,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:31,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:31,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334305264] [2023-08-29 03:14:31,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:31,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:31,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:31,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:31,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:32,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 678 [2023-08-29 03:14:32,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 293.5) internal successors, (1761), 6 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:32,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:32,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 678 [2023-08-29 03:14:32,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:32,169 INFO L130 PetriNetUnfolder]: 120/352 cut-off events. [2023-08-29 03:14:32,169 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:14:32,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 352 events. 120/352 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 747 event pairs, 110 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 737. Up to 281 conditions per place. [2023-08-29 03:14:32,171 INFO L137 encePairwiseOnDemand]: 672/678 looper letters, 67 selfloop transitions, 5 changer transitions 0/88 dead transitions. [2023-08-29 03:14:32,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 88 transitions, 340 flow [2023-08-29 03:14:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:32,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1807 transitions. [2023-08-29 03:14:32,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4441986234021632 [2023-08-29 03:14:32,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1807 transitions. [2023-08-29 03:14:32,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1807 transitions. [2023-08-29 03:14:32,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:32,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1807 transitions. [2023-08-29 03:14:32,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 301.1666666666667) internal successors, (1807), 6 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:32,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:32,190 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:32,190 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 178 flow. Second operand 6 states and 1807 transitions. [2023-08-29 03:14:32,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 88 transitions, 340 flow [2023-08-29 03:14:32,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 88 transitions, 330 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:14:32,192 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 176 flow [2023-08-29 03:14:32,193 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2023-08-29 03:14:32,193 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -120 predicate places. [2023-08-29 03:14:32,193 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 176 flow [2023-08-29 03:14:32,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.5) internal successors, (1761), 6 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:32,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:32,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:32,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:14:32,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:32,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash -263672825, now seen corresponding path program 1 times [2023-08-29 03:14:32,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:32,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760500460] [2023-08-29 03:14:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:32,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:32,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760500460] [2023-08-29 03:14:32,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760500460] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:32,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:32,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:32,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765374806] [2023-08-29 03:14:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:32,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:32,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:32,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:32,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 678 [2023-08-29 03:14:32,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 293.6666666666667) internal successors, (1762), 6 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:32,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:32,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 678 [2023-08-29 03:14:32,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:33,078 INFO L130 PetriNetUnfolder]: 124/353 cut-off events. [2023-08-29 03:14:33,079 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:14:33,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 353 events. 124/353 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 735 event pairs, 114 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 750. Up to 291 conditions per place. [2023-08-29 03:14:33,080 INFO L137 encePairwiseOnDemand]: 672/678 looper letters, 69 selfloop transitions, 5 changer transitions 0/87 dead transitions. [2023-08-29 03:14:33,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 87 transitions, 342 flow [2023-08-29 03:14:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:33,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1803 transitions. [2023-08-29 03:14:33,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44321533923303835 [2023-08-29 03:14:33,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1803 transitions. [2023-08-29 03:14:33,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1803 transitions. [2023-08-29 03:14:33,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:33,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1803 transitions. [2023-08-29 03:14:33,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:33,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:33,098 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:33,098 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 176 flow. Second operand 6 states and 1803 transitions. [2023-08-29 03:14:33,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 87 transitions, 342 flow [2023-08-29 03:14:33,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 332 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:14:33,100 INFO L231 Difference]: Finished difference. Result has 89 places, 79 transitions, 174 flow [2023-08-29 03:14:33,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=89, PETRI_TRANSITIONS=79} [2023-08-29 03:14:33,101 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -121 predicate places. [2023-08-29 03:14:33,101 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 79 transitions, 174 flow [2023-08-29 03:14:33,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.6666666666667) internal successors, (1762), 6 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:33,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:33,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:33,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:14:33,103 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr9ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:33,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:33,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1635462370, now seen corresponding path program 1 times [2023-08-29 03:14:33,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:33,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878168034] [2023-08-29 03:14:33,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:33,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:33,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878168034] [2023-08-29 03:14:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878168034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:33,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:33,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:33,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830993352] [2023-08-29 03:14:33,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:33,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:33,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:33,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:34,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 678 [2023-08-29 03:14:34,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 79 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 332.1666666666667) internal successors, (1993), 6 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:34,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:34,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 678 [2023-08-29 03:14:34,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:34,416 INFO L130 PetriNetUnfolder]: 116/336 cut-off events. [2023-08-29 03:14:34,416 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:14:34,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 336 events. 116/336 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 666 event pairs, 84 based on Foata normal form. 3/336 useless extension candidates. Maximal degree in co-relation 709. Up to 216 conditions per place. [2023-08-29 03:14:34,417 INFO L137 encePairwiseOnDemand]: 661/678 looper letters, 54 selfloop transitions, 10 changer transitions 7/84 dead transitions. [2023-08-29 03:14:34,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 84 transitions, 328 flow [2023-08-29 03:14:34,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2029 transitions. [2023-08-29 03:14:34,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4987708947885939 [2023-08-29 03:14:34,423 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2029 transitions. [2023-08-29 03:14:34,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2029 transitions. [2023-08-29 03:14:34,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:34,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2029 transitions. [2023-08-29 03:14:34,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.1666666666667) internal successors, (2029), 6 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:34,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:34,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:34,433 INFO L175 Difference]: Start difference. First operand has 89 places, 79 transitions, 174 flow. Second operand 6 states and 2029 transitions. [2023-08-29 03:14:34,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 84 transitions, 328 flow [2023-08-29 03:14:34,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 84 transitions, 318 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:14:34,435 INFO L231 Difference]: Finished difference. Result has 86 places, 69 transitions, 164 flow [2023-08-29 03:14:34,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=86, PETRI_TRANSITIONS=69} [2023-08-29 03:14:34,436 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -124 predicate places. [2023-08-29 03:14:34,436 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 69 transitions, 164 flow [2023-08-29 03:14:34,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 332.1666666666667) internal successors, (1993), 6 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:34,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:34,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:34,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 03:14:34,437 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:34,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1302621104, now seen corresponding path program 1 times [2023-08-29 03:14:34,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:34,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010251761] [2023-08-29 03:14:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:34,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010251761] [2023-08-29 03:14:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010251761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:34,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:34,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:34,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270460613] [2023-08-29 03:14:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:34,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:34,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:35,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 678 [2023-08-29 03:14:35,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 69 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 293.8333333333333) internal successors, (1763), 6 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:35,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:35,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 678 [2023-08-29 03:14:35,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:35,462 INFO L130 PetriNetUnfolder]: 112/308 cut-off events. [2023-08-29 03:14:35,462 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:14:35,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 308 events. 112/308 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 503 event pairs, 102 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 684. Up to 261 conditions per place. [2023-08-29 03:14:35,463 INFO L137 encePairwiseOnDemand]: 672/678 looper letters, 63 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2023-08-29 03:14:35,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 76 transitions, 318 flow [2023-08-29 03:14:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1785 transitions. [2023-08-29 03:14:35,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387905604719764 [2023-08-29 03:14:35,468 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1785 transitions. [2023-08-29 03:14:35,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1785 transitions. [2023-08-29 03:14:35,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:35,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1785 transitions. [2023-08-29 03:14:35,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:35,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:35,478 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:35,479 INFO L175 Difference]: Start difference. First operand has 86 places, 69 transitions, 164 flow. Second operand 6 states and 1785 transitions. [2023-08-29 03:14:35,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 76 transitions, 318 flow [2023-08-29 03:14:35,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 76 transitions, 298 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:14:35,482 INFO L231 Difference]: Finished difference. Result has 78 places, 68 transitions, 152 flow [2023-08-29 03:14:35,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=152, PETRI_PLACES=78, PETRI_TRANSITIONS=68} [2023-08-29 03:14:35,484 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -132 predicate places. [2023-08-29 03:14:35,484 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 68 transitions, 152 flow [2023-08-29 03:14:35,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.8333333333333) internal successors, (1763), 6 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:35,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:14:35,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:35,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:14:35,486 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr8ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-29 03:14:35,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:14:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash 459904582, now seen corresponding path program 1 times [2023-08-29 03:14:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:14:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503959641] [2023-08-29 03:14:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:14:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:14:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:14:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:14:35,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:14:35,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503959641] [2023-08-29 03:14:35,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503959641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:14:35,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:14:35,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:14:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739278744] [2023-08-29 03:14:35,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:14:35,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:14:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:14:35,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:14:35,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:14:36,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 678 [2023-08-29 03:14:36,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:36,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:14:36,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 678 [2023-08-29 03:14:36,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:14:36,536 INFO L130 PetriNetUnfolder]: 112/305 cut-off events. [2023-08-29 03:14:36,536 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:14:36,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 305 events. 112/305 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 497 event pairs, 104 based on Foata normal form. 3/308 useless extension candidates. Maximal degree in co-relation 666. Up to 266 conditions per place. [2023-08-29 03:14:36,537 INFO L137 encePairwiseOnDemand]: 673/678 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2023-08-29 03:14:36,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 306 flow [2023-08-29 03:14:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:14:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:14:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1785 transitions. [2023-08-29 03:14:36,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387905604719764 [2023-08-29 03:14:36,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1785 transitions. [2023-08-29 03:14:36,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1785 transitions. [2023-08-29 03:14:36,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:14:36,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1785 transitions. [2023-08-29 03:14:36,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:36,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:36,552 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:36,552 INFO L175 Difference]: Start difference. First operand has 78 places, 68 transitions, 152 flow. Second operand 6 states and 1785 transitions. [2023-08-29 03:14:36,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 306 flow [2023-08-29 03:14:36,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:14:36,554 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2023-08-29 03:14:36,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=678, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2023-08-29 03:14:36,555 INFO L281 CegarLoopForPetriNet]: 210 programPoint places, -133 predicate places. [2023-08-29 03:14:36,555 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2023-08-29 03:14:36,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:14:36,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-29 03:14:36,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-29 03:14:36,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-29 03:14:36,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-29 03:14:36,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-29 03:14:36,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-29 03:14:36,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-29 03:14:36,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-29 03:14:36,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-29 03:14:36,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-29 03:14:36,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-29 03:14:36,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-29 03:14:36,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-29 03:14:36,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-29 03:14:36,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-29 03:14:36,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-08-29 03:14:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-08-29 03:14:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-08-29 03:14:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2023-08-29 03:14:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-08-29 03:14:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-29 03:14:36,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-29 03:14:36,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-29 03:14:36,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-29 03:14:36,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-29 03:14:36,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-29 03:14:36,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:14:36,564 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:14:36,566 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-29 03:14:36,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 410 places, 436 transitions, 880 flow [2023-08-29 03:14:36,653 INFO L130 PetriNetUnfolder]: 45/634 cut-off events. [2023-08-29 03:14:36,654 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:14:36,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 634 events. 45/634 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2042 event pairs, 0 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2023-08-29 03:14:36,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 410 places, 436 transitions, 880 flow [2023-08-29 03:14:36,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 427 transitions, 859 flow [2023-08-29 03:14:36,663 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:14:36,663 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 427 transitions, 859 flow [2023-08-29 03:14:36,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 427 transitions, 859 flow [2023-08-29 03:14:36,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 427 transitions, 859 flow [2023-08-29 03:14:36,732 INFO L130 PetriNetUnfolder]: 44/625 cut-off events. [2023-08-29 03:14:36,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:14:36,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 625 events. 44/625 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1960 event pairs, 0 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2023-08-29 03:14:36,752 INFO L119 LiptonReduction]: Number of co-enabled transitions 60792 [2023-08-29 03:14:51,328 WARN L222 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 137 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:14:59,403 WARN L222 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 137 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:15:20,843 WARN L222 SmtUtils]: Spent 18.93s on a formula simplification. DAG size of input: 262 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:15:28,100 WARN L222 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:15:48,961 WARN L222 SmtUtils]: Spent 20.86s on a formula simplification. DAG size of input: 262 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:15:53,485 INFO L134 LiptonReduction]: Checked pairs total: 359348 [2023-08-29 03:15:53,486 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-08-29 03:15:53,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 03:15:53,488 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;@38a916e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:15:53,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 03:15:53,491 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-29 03:15:53,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:15:53,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:15:53,492 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 03:15:53,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 03:15:53,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:15:53,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1279505482, now seen corresponding path program 1 times [2023-08-29 03:15:53,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:15:53,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971585239] [2023-08-29 03:15:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:15:53,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:15:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 03:15:53,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 03:15:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 03:15:53,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 03:15:53,546 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 03:15:53,547 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 03:15:53,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:15:53,547 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 03:15:53,548 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 03:15:53,548 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 03:15:53,548 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 03:15:53,602 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 03:15:53,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 587 transitions, 1192 flow [2023-08-29 03:15:53,788 INFO L130 PetriNetUnfolder]: 76/1013 cut-off events. [2023-08-29 03:15:53,788 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:15:53,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 1013 events. 76/1013 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4594 event pairs, 0 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 636. Up to 12 conditions per place. [2023-08-29 03:15:53,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 550 places, 587 transitions, 1192 flow [2023-08-29 03:15:53,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 550 places, 587 transitions, 1192 flow [2023-08-29 03:15:53,819 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:15:53,819 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 550 places, 587 transitions, 1192 flow [2023-08-29 03:15:53,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 550 places, 587 transitions, 1192 flow [2023-08-29 03:15:53,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 550 places, 587 transitions, 1192 flow [2023-08-29 03:15:54,002 INFO L130 PetriNetUnfolder]: 76/1013 cut-off events. [2023-08-29 03:15:54,002 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:15:54,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 1013 events. 76/1013 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4594 event pairs, 0 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 636. Up to 12 conditions per place. [2023-08-29 03:15:54,076 INFO L119 LiptonReduction]: Number of co-enabled transitions 169264 [2023-08-29 03:16:16,841 WARN L222 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:16:27,589 WARN L222 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:16:42,526 WARN L222 SmtUtils]: Spent 13.32s on a formula simplification. DAG size of input: 253 DAG size of output: 242 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:16:48,629 WARN L222 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:16:57,178 WARN L222 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 253 DAG size of output: 242 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 03:17:01,753 INFO L134 LiptonReduction]: Checked pairs total: 1118457 [2023-08-29 03:17:01,753 INFO L136 LiptonReduction]: Total number of compositions: 300 [2023-08-29 03:17:01,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:17:01,755 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;@38a916e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:17:01,755 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2023-08-29 03:17:01,756 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:17:01,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:17:01,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:17:01,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:17:01,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, t_funErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-29 03:17:01,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:17:01,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2676, now seen corresponding path program 1 times [2023-08-29 03:17:01,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:17:01,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786833137] [2023-08-29 03:17:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:17:01,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:17:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:17:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:17:01,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:17:01,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786833137] [2023-08-29 03:17:01,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786833137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:17:01,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:17:01,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:17:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587052647] [2023-08-29 03:17:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:17:01,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:17:01,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:17:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:17:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:17:01,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 544 out of 887 [2023-08-29 03:17:01,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 331 transitions, 680 flow. Second operand has 2 states, 2 states have (on average 544.5) internal successors, (1089), 2 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:01,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:17:01,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 544 of 887 [2023-08-29 03:17:01,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:17:20,846 INFO L130 PetriNetUnfolder]: 72816/178915 cut-off events. [2023-08-29 03:17:20,846 INFO L131 PetriNetUnfolder]: For 285/341 co-relation queries the response was YES. [2023-08-29 03:17:21,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285508 conditions, 178915 events. 72816/178915 cut-off events. For 285/341 co-relation queries the response was YES. Maximal size of possible extension queue 2214. Compared 2247841 event pairs, 68719 based on Foata normal form. 9969/176574 useless extension candidates. Maximal degree in co-relation 241444. Up to 106422 conditions per place. [2023-08-29 03:17:22,104 INFO L137 encePairwiseOnDemand]: 852/887 looper letters, 103 selfloop transitions, 0 changer transitions 0/296 dead transitions. [2023-08-29 03:17:22,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 296 transitions, 816 flow [2023-08-29 03:17:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:17:22,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:17:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1226 transitions. [2023-08-29 03:17:22,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6910935738444194 [2023-08-29 03:17:22,109 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1226 transitions. [2023-08-29 03:17:22,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1226 transitions. [2023-08-29 03:17:22,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:17:22,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1226 transitions. [2023-08-29 03:17:22,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 613.0) internal successors, (1226), 2 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:22,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 887.0) internal successors, (2661), 3 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:22,116 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 887.0) internal successors, (2661), 3 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:22,116 INFO L175 Difference]: Start difference. First operand has 299 places, 331 transitions, 680 flow. Second operand 2 states and 1226 transitions. [2023-08-29 03:17:22,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 296 transitions, 816 flow [2023-08-29 03:17:22,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 296 transitions, 816 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:17:22,121 INFO L231 Difference]: Finished difference. Result has 296 places, 296 transitions, 610 flow [2023-08-29 03:17:22,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=610, PETRI_PLACES=296, PETRI_TRANSITIONS=296} [2023-08-29 03:17:22,123 INFO L281 CegarLoopForPetriNet]: 299 programPoint places, -3 predicate places. [2023-08-29 03:17:22,123 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 296 transitions, 610 flow [2023-08-29 03:17:22,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 544.5) internal successors, (1089), 2 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:22,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:17:22,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:17:22,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:17:22,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, t_funErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-29 03:17:22,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:17:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -673525798, now seen corresponding path program 1 times [2023-08-29 03:17:22,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:17:22,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012068373] [2023-08-29 03:17:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:17:22,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:17:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:17:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:17:22,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:17:22,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012068373] [2023-08-29 03:17:22,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012068373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:17:22,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:17:22,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:17:22,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372519588] [2023-08-29 03:17:22,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:17:22,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:17:22,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:17:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:17:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:17:22,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 887 [2023-08-29 03:17:22,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 296 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 541.0) internal successors, (1623), 3 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:22,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:17:22,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 887 [2023-08-29 03:17:22,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:17:39,597 INFO L130 PetriNetUnfolder]: 72813/180200 cut-off events. [2023-08-29 03:17:39,597 INFO L131 PetriNetUnfolder]: For 277/277 co-relation queries the response was YES. [2023-08-29 03:17:39,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286760 conditions, 180200 events. 72813/180200 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 2225. Compared 2275309 event pairs, 65158 based on Foata normal form. 0/167577 useless extension candidates. Maximal degree in co-relation 286755. Up to 106355 conditions per place. [2023-08-29 03:17:40,617 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 133 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2023-08-29 03:17:40,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 328 transitions, 944 flow [2023-08-29 03:17:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:17:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:17:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1756 transitions. [2023-08-29 03:17:40,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.659902292371289 [2023-08-29 03:17:40,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1756 transitions. [2023-08-29 03:17:40,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1756 transitions. [2023-08-29 03:17:40,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:17:40,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1756 transitions. [2023-08-29 03:17:40,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:40,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:40,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:40,630 INFO L175 Difference]: Start difference. First operand has 296 places, 296 transitions, 610 flow. Second operand 3 states and 1756 transitions. [2023-08-29 03:17:40,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 328 transitions, 944 flow [2023-08-29 03:17:40,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 328 transitions, 944 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:17:40,636 INFO L231 Difference]: Finished difference. Result has 299 places, 297 transitions, 622 flow [2023-08-29 03:17:40,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=299, PETRI_TRANSITIONS=297} [2023-08-29 03:17:40,637 INFO L281 CegarLoopForPetriNet]: 299 programPoint places, 0 predicate places. [2023-08-29 03:17:40,638 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 297 transitions, 622 flow [2023-08-29 03:17:40,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.0) internal successors, (1623), 3 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:40,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:17:40,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:17:40,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:17:40,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, t_funErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-29 03:17:40,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:17:40,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1128302522, now seen corresponding path program 1 times [2023-08-29 03:17:40,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:17:40,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560299361] [2023-08-29 03:17:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:17:40,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:17:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:17:40,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:17:40,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:17:40,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560299361] [2023-08-29 03:17:40,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560299361] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:17:40,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:17:40,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:17:40,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363319172] [2023-08-29 03:17:40,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:17:40,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:17:40,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:17:40,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:17:40,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:17:41,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 887 [2023-08-29 03:17:41,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 297 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 391.6666666666667) internal successors, (2350), 6 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:17:41,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:17:41,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 887 [2023-08-29 03:17:41,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand