./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/02-base_25-malloc_race_cp.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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:55:47,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:55:47,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:55:47,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:55:47,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:55:47,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:55:47,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:55:47,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:55:47,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:55:47,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:55:47,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:55:47,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:55:47,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:55:47,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:55:47,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:55:47,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:55:47,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:55:47,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:55:47,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:55:47,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:55:47,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:55:47,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:55:47,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:55:47,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:55:47,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:55:47,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:55:47,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:55:47,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:55:47,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:55:47,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:55:47,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:55:47,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:55:47,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:55:47,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:55:47,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:55:47,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:55:47,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:55:47,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:55:47,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:55:47,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:55:47,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:55:47,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:55:47,506 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:55:47,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:55:47,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:55:47,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:55:47,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:55:47,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:55:47,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:55:47,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:55:47,509 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:55:47,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:55:47,510 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:55:47,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:55:47,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:55:47,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:55:47,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:55:47,512 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:55:47,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:55:47,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:55:47,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:55:47,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:55:47,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:55:47,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:55:47,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:55:47,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:55:47,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:55:47,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:55:47,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:55:47,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:55:47,514 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:55:47,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:55:47,514 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:55:47,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:55:47,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:55:47,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:55:47,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:55:47,777 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:55:47,777 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:55:47,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2023-08-31 19:55:48,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:55:49,053 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:55:49,053 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2023-08-31 19:55:49,077 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dc6ff400/76c8d628e7ce420b9d6338d6dd7784c1/FLAG08f79bed4 [2023-08-31 19:55:49,094 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dc6ff400/76c8d628e7ce420b9d6338d6dd7784c1 [2023-08-31 19:55:49,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:55:49,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:55:49,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:55:49,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:55:49,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:55:49,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c0fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49, skipping insertion in model container [2023-08-31 19:55:49,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:55:49,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:55:49,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:55:49,553 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:55:49,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:55:49,688 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:55:49,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49 WrapperNode [2023-08-31 19:55:49,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:55:49,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:55:49,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:55:49,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:55:49,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,738 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-31 19:55:49,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:55:49,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:55:49,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:55:49,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:55:49,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:55:49,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:55:49,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:55:49,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:55:49,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (1/1) ... [2023-08-31 19:55:49,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:55:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:55:49,846 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) [2023-08-31 19:55:49,858 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 [2023-08-31 19:55:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:55:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:55:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:55:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:55:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:55:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:55:49,881 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:55:50,032 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:55:50,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:55:50,179 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:55:50,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:55:50,184 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:55:50,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:55:50 BoogieIcfgContainer [2023-08-31 19:55:50,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:55:50,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:55:50,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:55:50,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:55:50,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:55:49" (1/3) ... [2023-08-31 19:55:50,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50759bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:55:50, skipping insertion in model container [2023-08-31 19:55:50,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:49" (2/3) ... [2023-08-31 19:55:50,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50759bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:55:50, skipping insertion in model container [2023-08-31 19:55:50,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:55:50" (3/3) ... [2023-08-31 19:55:50,190 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2023-08-31 19:55:50,194 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:55:50,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:55:50,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-31 19:55:50,200 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:55:50,245 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:55:50,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 209 flow [2023-08-31 19:55:50,305 INFO L130 PetriNetUnfolder]: 0/101 cut-off events. [2023-08-31 19:55:50,305 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:50,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:55:50,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 209 flow [2023-08-31 19:55:50,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 205 flow [2023-08-31 19:55:50,312 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:55:50,317 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 205 flow [2023-08-31 19:55:50,319 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 205 flow [2023-08-31 19:55:50,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 205 flow [2023-08-31 19:55:50,335 INFO L130 PetriNetUnfolder]: 0/101 cut-off events. [2023-08-31 19:55:50,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:50,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:55:50,336 INFO L119 LiptonReduction]: Number of co-enabled transitions 1860 [2023-08-31 19:55:52,380 INFO L134 LiptonReduction]: Checked pairs total: 15445 [2023-08-31 19:55:52,380 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-08-31 19:55:52,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:55:52,393 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;@4788f101, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:55:52,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-31 19:55:52,394 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:55:52,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:52,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:52,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:55:52,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:52,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:52,398 INFO L85 PathProgramCache]: Analyzing trace with hash 336, now seen corresponding path program 1 times [2023-08-31 19:55:52,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:52,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30610565] [2023-08-31 19:55:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:52,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:52,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30610565] [2023-08-31 19:55:52,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30610565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:52,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:52,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:55:52,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891827737] [2023-08-31 19:55:52,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:52,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:55:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:52,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:55:52,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:55:52,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 179 [2023-08-31 19:55:52,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:52,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 179 [2023-08-31 19:55:52,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:52,578 INFO L130 PetriNetUnfolder]: 35/200 cut-off events. [2023-08-31 19:55:52,582 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:52,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 200 events. 35/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 841 event pairs, 35 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 280. Up to 85 conditions per place. [2023-08-31 19:55:52,584 INFO L137 encePairwiseOnDemand]: 175/179 looper letters, 14 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-31 19:55:52,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 111 flow [2023-08-31 19:55:52,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:55:52,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:55:52,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2023-08-31 19:55:52,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145251396648045 [2023-08-31 19:55:52,618 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 220 transitions. [2023-08-31 19:55:52,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 220 transitions. [2023-08-31 19:55:52,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:52,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 220 transitions. [2023-08-31 19:55:52,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,626 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,627 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 2 states and 220 transitions. [2023-08-31 19:55:52,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 111 flow [2023-08-31 19:55:52,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:55:52,630 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 82 flow [2023-08-31 19:55:52,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-08-31 19:55:52,633 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-08-31 19:55:52,633 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 82 flow [2023-08-31 19:55:52,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:52,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:55:52,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:55:52,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:52,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash 324012270, now seen corresponding path program 1 times [2023-08-31 19:55:52,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:52,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57142216] [2023-08-31 19:55:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:52,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:52,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:52,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57142216] [2023-08-31 19:55:52,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57142216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:52,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:52,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:55:52,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583152642] [2023-08-31 19:55:52,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:52,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:55:52,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:52,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:55:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:55:52,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 179 [2023-08-31 19:55:52,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:52,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 179 [2023-08-31 19:55:52,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:52,779 INFO L130 PetriNetUnfolder]: 48/231 cut-off events. [2023-08-31 19:55:52,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:55:52,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 48/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1016 event pairs, 31 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 345. Up to 106 conditions per place. [2023-08-31 19:55:52,781 INFO L137 encePairwiseOnDemand]: 175/179 looper letters, 18 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-31 19:55:52,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 126 flow [2023-08-31 19:55:52,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:55:52,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:55:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-31 19:55:52,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661080074487895 [2023-08-31 19:55:52,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-31 19:55:52,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-31 19:55:52,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:52,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-31 19:55:52,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,787 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 82 flow. Second operand 3 states and 304 transitions. [2023-08-31 19:55:52,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 126 flow [2023-08-31 19:55:52,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:52,788 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 92 flow [2023-08-31 19:55:52,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2023-08-31 19:55:52,789 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-31 19:55:52,789 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 92 flow [2023-08-31 19:55:52,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:52,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:52,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:52,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:55:52,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:52,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:52,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1621764314, now seen corresponding path program 1 times [2023-08-31 19:55:52,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:52,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915812586] [2023-08-31 19:55:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:52,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:53,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:53,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915812586] [2023-08-31 19:55:53,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915812586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:53,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:53,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:53,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954032929] [2023-08-31 19:55:53,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:53,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:53,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:53,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:53,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:53,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 179 [2023-08-31 19:55:53,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:53,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 179 [2023-08-31 19:55:53,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:53,332 INFO L130 PetriNetUnfolder]: 258/616 cut-off events. [2023-08-31 19:55:53,333 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-31 19:55:53,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 616 events. 258/616 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2922 event pairs, 127 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 1203. Up to 421 conditions per place. [2023-08-31 19:55:53,335 INFO L137 encePairwiseOnDemand]: 164/179 looper letters, 63 selfloop transitions, 37 changer transitions 0/108 dead transitions. [2023-08-31 19:55:53,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 108 transitions, 436 flow [2023-08-31 19:55:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2023-08-31 19:55:53,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5279329608938548 [2023-08-31 19:55:53,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2023-08-31 19:55:53,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2023-08-31 19:55:53,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:53,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2023-08-31 19:55:53,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,342 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,342 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 92 flow. Second operand 6 states and 567 transitions. [2023-08-31 19:55:53,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 108 transitions, 436 flow [2023-08-31 19:55:53,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 108 transitions, 436 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:53,344 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 325 flow [2023-08-31 19:55:53,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-08-31 19:55:53,345 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2023-08-31 19:55:53,345 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 325 flow [2023-08-31 19:55:53,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:53,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:53,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:55:53,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:53,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1669353373, now seen corresponding path program 1 times [2023-08-31 19:55:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:53,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600825477] [2023-08-31 19:55:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:53,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:53,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600825477] [2023-08-31 19:55:53,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600825477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:53,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:53,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:53,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142715545] [2023-08-31 19:55:53,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:53,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:53,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:53,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:53,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:53,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 179 [2023-08-31 19:55:53,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:53,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 179 [2023-08-31 19:55:53,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:53,696 INFO L130 PetriNetUnfolder]: 342/881 cut-off events. [2023-08-31 19:55:53,697 INFO L131 PetriNetUnfolder]: For 283/302 co-relation queries the response was YES. [2023-08-31 19:55:53,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 881 events. 342/881 cut-off events. For 283/302 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5114 event pairs, 46 based on Foata normal form. 25/894 useless extension candidates. Maximal degree in co-relation 2269. Up to 368 conditions per place. [2023-08-31 19:55:53,700 INFO L137 encePairwiseOnDemand]: 164/179 looper letters, 86 selfloop transitions, 48 changer transitions 0/162 dead transitions. [2023-08-31 19:55:53,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 162 transitions, 857 flow [2023-08-31 19:55:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:53,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 611 transitions. [2023-08-31 19:55:53,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.568901303538175 [2023-08-31 19:55:53,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 611 transitions. [2023-08-31 19:55:53,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 611 transitions. [2023-08-31 19:55:53,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:53,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 611 transitions. [2023-08-31 19:55:53,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,706 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,706 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 325 flow. Second operand 6 states and 611 transitions. [2023-08-31 19:55:53,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 162 transitions, 857 flow [2023-08-31 19:55:53,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 162 transitions, 857 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:53,710 INFO L231 Difference]: Finished difference. Result has 63 places, 120 transitions, 671 flow [2023-08-31 19:55:53,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=671, PETRI_PLACES=63, PETRI_TRANSITIONS=120} [2023-08-31 19:55:53,711 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2023-08-31 19:55:53,711 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 120 transitions, 671 flow [2023-08-31 19:55:53,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:53,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:53,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:55:53,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:53,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:53,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1413290661, now seen corresponding path program 1 times [2023-08-31 19:55:53,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:53,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126133097] [2023-08-31 19:55:53,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:53,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:53,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:53,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126133097] [2023-08-31 19:55:53,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126133097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:53,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:53,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:55:53,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108919842] [2023-08-31 19:55:53,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:53,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:55:53,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:53,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:55:53,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:55:53,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 179 [2023-08-31 19:55:53,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 120 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:53,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 179 [2023-08-31 19:55:53,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:53,782 INFO L130 PetriNetUnfolder]: 40/176 cut-off events. [2023-08-31 19:55:53,783 INFO L131 PetriNetUnfolder]: For 108/112 co-relation queries the response was YES. [2023-08-31 19:55:53,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 176 events. 40/176 cut-off events. For 108/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 664 event pairs, 5 based on Foata normal form. 11/183 useless extension candidates. Maximal degree in co-relation 463. Up to 59 conditions per place. [2023-08-31 19:55:53,783 INFO L137 encePairwiseOnDemand]: 175/179 looper letters, 15 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2023-08-31 19:55:53,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 61 transitions, 313 flow [2023-08-31 19:55:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:55:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:55:53,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-08-31 19:55:53,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5679702048417132 [2023-08-31 19:55:53,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-08-31 19:55:53,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-08-31 19:55:53,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:53,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-08-31 19:55:53,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,787 INFO L175 Difference]: Start difference. First operand has 63 places, 120 transitions, 671 flow. Second operand 3 states and 305 transitions. [2023-08-31 19:55:53,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 61 transitions, 313 flow [2023-08-31 19:55:53,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 265 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-08-31 19:55:53,789 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 233 flow [2023-08-31 19:55:53,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-31 19:55:53,790 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2023-08-31 19:55:53,790 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 233 flow [2023-08-31 19:55:53,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:53,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:53,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:55:53,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:53,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:53,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1576726598, now seen corresponding path program 1 times [2023-08-31 19:55:53,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:53,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089449968] [2023-08-31 19:55:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:53,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:53,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:53,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:53,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089449968] [2023-08-31 19:55:53,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089449968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:53,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:53,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:53,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850970597] [2023-08-31 19:55:53,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:53,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:53,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:53,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:53,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:53,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 179 [2023-08-31 19:55:53,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:53,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:53,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 179 [2023-08-31 19:55:53,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:54,070 INFO L130 PetriNetUnfolder]: 106/308 cut-off events. [2023-08-31 19:55:54,070 INFO L131 PetriNetUnfolder]: For 98/100 co-relation queries the response was YES. [2023-08-31 19:55:54,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 308 events. 106/308 cut-off events. For 98/100 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1213 event pairs, 35 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 819. Up to 246 conditions per place. [2023-08-31 19:55:54,071 INFO L137 encePairwiseOnDemand]: 169/179 looper letters, 52 selfloop transitions, 21 changer transitions 4/84 dead transitions. [2023-08-31 19:55:54,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 467 flow [2023-08-31 19:55:54,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2023-08-31 19:55:54,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925512104283054 [2023-08-31 19:55:54,073 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 529 transitions. [2023-08-31 19:55:54,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 529 transitions. [2023-08-31 19:55:54,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:54,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 529 transitions. [2023-08-31 19:55:54,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,076 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,076 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 233 flow. Second operand 6 states and 529 transitions. [2023-08-31 19:55:54,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 467 flow [2023-08-31 19:55:54,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 84 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:55:54,078 INFO L231 Difference]: Finished difference. Result has 65 places, 80 transitions, 385 flow [2023-08-31 19:55:54,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=65, PETRI_TRANSITIONS=80} [2023-08-31 19:55:54,078 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2023-08-31 19:55:54,078 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 80 transitions, 385 flow [2023-08-31 19:55:54,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:54,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:54,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:55:54,079 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:54,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash -298521993, now seen corresponding path program 1 times [2023-08-31 19:55:54,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:54,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229701712] [2023-08-31 19:55:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:54,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:54,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:54,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229701712] [2023-08-31 19:55:54,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229701712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:54,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:54,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:55:54,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229703505] [2023-08-31 19:55:54,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:54,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:55:54,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:54,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:55:54,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:55:54,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 179 [2023-08-31 19:55:54,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 80 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:54,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 179 [2023-08-31 19:55:54,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:54,391 INFO L130 PetriNetUnfolder]: 162/434 cut-off events. [2023-08-31 19:55:54,391 INFO L131 PetriNetUnfolder]: For 212/214 co-relation queries the response was YES. [2023-08-31 19:55:54,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 434 events. 162/434 cut-off events. For 212/214 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1986 event pairs, 11 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 1395. Up to 273 conditions per place. [2023-08-31 19:55:54,393 INFO L137 encePairwiseOnDemand]: 165/179 looper letters, 73 selfloop transitions, 45 changer transitions 19/148 dead transitions. [2023-08-31 19:55:54,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 148 transitions, 949 flow [2023-08-31 19:55:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:55:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:55:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-31 19:55:54,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5502793296089385 [2023-08-31 19:55:54,408 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-31 19:55:54,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-31 19:55:54,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:54,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-31 19:55:54,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,412 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,412 INFO L175 Difference]: Start difference. First operand has 65 places, 80 transitions, 385 flow. Second operand 6 states and 591 transitions. [2023-08-31 19:55:54,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 148 transitions, 949 flow [2023-08-31 19:55:54,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 148 transitions, 917 flow, removed 16 selfloop flow, removed 0 redundant places. [2023-08-31 19:55:54,415 INFO L231 Difference]: Finished difference. Result has 75 places, 113 transitions, 719 flow [2023-08-31 19:55:54,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=719, PETRI_PLACES=75, PETRI_TRANSITIONS=113} [2023-08-31 19:55:54,415 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2023-08-31 19:55:54,416 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 113 transitions, 719 flow [2023-08-31 19:55:54,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:54,416 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] [2023-08-31 19:55:54,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:55:54,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:54,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash 693231900, now seen corresponding path program 1 times [2023-08-31 19:55:54,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:54,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126964635] [2023-08-31 19:55:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:54,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:54,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:54,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126964635] [2023-08-31 19:55:54,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126964635] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:54,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:54,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 19:55:54,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407024514] [2023-08-31 19:55:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:54,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 19:55:54,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:54,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 19:55:54,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 19:55:54,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 179 [2023-08-31 19:55:54,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 113 transitions, 719 flow. Second operand has 8 states, 8 states have (on average 77.25) internal successors, (618), 8 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:54,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 179 [2023-08-31 19:55:54,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:54,943 INFO L130 PetriNetUnfolder]: 143/378 cut-off events. [2023-08-31 19:55:54,943 INFO L131 PetriNetUnfolder]: For 551/560 co-relation queries the response was YES. [2023-08-31 19:55:54,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 378 events. 143/378 cut-off events. For 551/560 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1606 event pairs, 26 based on Foata normal form. 10/387 useless extension candidates. Maximal degree in co-relation 1586. Up to 243 conditions per place. [2023-08-31 19:55:54,945 INFO L137 encePairwiseOnDemand]: 172/179 looper letters, 102 selfloop transitions, 26 changer transitions 8/143 dead transitions. [2023-08-31 19:55:54,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 143 transitions, 1235 flow [2023-08-31 19:55:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:55:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:55:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2023-08-31 19:55:54,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588986432561852 [2023-08-31 19:55:54,947 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 575 transitions. [2023-08-31 19:55:54,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 575 transitions. [2023-08-31 19:55:54,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:54,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 575 transitions. [2023-08-31 19:55:54,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,950 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,950 INFO L175 Difference]: Start difference. First operand has 75 places, 113 transitions, 719 flow. Second operand 7 states and 575 transitions. [2023-08-31 19:55:54,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 143 transitions, 1235 flow [2023-08-31 19:55:54,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 143 transitions, 1150 flow, removed 33 selfloop flow, removed 4 redundant places. [2023-08-31 19:55:54,960 INFO L231 Difference]: Finished difference. Result has 76 places, 112 transitions, 706 flow [2023-08-31 19:55:54,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=706, PETRI_PLACES=76, PETRI_TRANSITIONS=112} [2023-08-31 19:55:54,961 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2023-08-31 19:55:54,962 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 112 transitions, 706 flow [2023-08-31 19:55:54,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 77.25) internal successors, (618), 8 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:54,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:54,962 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] [2023-08-31 19:55:54,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:55:54,962 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:54,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1503443667, now seen corresponding path program 1 times [2023-08-31 19:55:54,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:54,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020704250] [2023-08-31 19:55:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:54,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:55:55,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:55:55,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:55:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020704250] [2023-08-31 19:55:55,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020704250] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:55:55,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:55:55,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 19:55:55,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175552831] [2023-08-31 19:55:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:55:55,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 19:55:55,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:55:55,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 19:55:55,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 19:55:55,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 179 [2023-08-31 19:55:55,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 112 transitions, 706 flow. Second operand has 8 states, 8 states have (on average 83.75) internal successors, (670), 8 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:55:55,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 179 [2023-08-31 19:55:55,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:55:55,658 INFO L130 PetriNetUnfolder]: 146/371 cut-off events. [2023-08-31 19:55:55,658 INFO L131 PetriNetUnfolder]: For 496/504 co-relation queries the response was YES. [2023-08-31 19:55:55,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 371 events. 146/371 cut-off events. For 496/504 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1539 event pairs, 5 based on Foata normal form. 12/382 useless extension candidates. Maximal degree in co-relation 1567. Up to 137 conditions per place. [2023-08-31 19:55:55,660 INFO L137 encePairwiseOnDemand]: 168/179 looper letters, 99 selfloop transitions, 49 changer transitions 10/168 dead transitions. [2023-08-31 19:55:55,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 168 transitions, 1371 flow [2023-08-31 19:55:55,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:55:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:55:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 661 transitions. [2023-08-31 19:55:55,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5275339185953711 [2023-08-31 19:55:55,670 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 661 transitions. [2023-08-31 19:55:55,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 661 transitions. [2023-08-31 19:55:55,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:55:55,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 661 transitions. [2023-08-31 19:55:55,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.42857142857143) internal successors, (661), 7 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,674 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,674 INFO L175 Difference]: Start difference. First operand has 76 places, 112 transitions, 706 flow. Second operand 7 states and 661 transitions. [2023-08-31 19:55:55,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 168 transitions, 1371 flow [2023-08-31 19:55:55,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 168 transitions, 1265 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 19:55:55,680 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 880 flow [2023-08-31 19:55:55,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=880, PETRI_PLACES=80, PETRI_TRANSITIONS=119} [2023-08-31 19:55:55,680 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2023-08-31 19:55:55,681 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 880 flow [2023-08-31 19:55:55,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 83.75) internal successors, (670), 8 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:55:55,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:55:55,681 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] [2023-08-31 19:55:55,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:55:55,681 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-31 19:55:55,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:55:55,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1965372415, now seen corresponding path program 1 times [2023-08-31 19:55:55,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:55:55,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026878698] [2023-08-31 19:55:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:55:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:55:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:55:55,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:55:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:55:55,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:55:55,731 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:55:55,731 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-31 19:55:55,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-31 19:55:55,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:55:55,734 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:55:55,738 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:55:55,738 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:55:55,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:55:55 BasicIcfg [2023-08-31 19:55:55,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:55:55,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:55:55,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:55:55,760 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:55:55,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:55:50" (3/4) ... [2023-08-31 19:55:55,762 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:55:55,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:55:55,763 INFO L158 Benchmark]: Toolchain (without parser) took 6664.57ms. Allocated memory was 81.8MB in the beginning and 216.0MB in the end (delta: 134.2MB). Free memory was 57.6MB in the beginning and 91.1MB in the end (delta: -33.5MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. [2023-08-31 19:55:55,763 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:55:55,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.00ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 40.8MB in the end (delta: 16.6MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2023-08-31 19:55:55,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.70ms. Allocated memory is still 81.8MB. Free memory was 40.8MB in the beginning and 38.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:55:55,763 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 81.8MB. Free memory was 38.3MB in the beginning and 36.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:55:55,763 INFO L158 Benchmark]: RCFGBuilder took 399.91ms. Allocated memory is still 81.8MB. Free memory was 36.2MB in the beginning and 44.0MB in the end (delta: -7.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-08-31 19:55:55,764 INFO L158 Benchmark]: TraceAbstraction took 5573.64ms. Allocated memory was 81.8MB in the beginning and 216.0MB in the end (delta: 134.2MB). Free memory was 43.5MB in the beginning and 91.1MB in the end (delta: -47.6MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2023-08-31 19:55:55,764 INFO L158 Benchmark]: Witness Printer took 2.08ms. Allocated memory is still 216.0MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:55:55,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.00ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 40.8MB in the end (delta: 16.6MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.70ms. Allocated memory is still 81.8MB. Free memory was 40.8MB in the beginning and 38.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 81.8MB. Free memory was 38.3MB in the beginning and 36.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 399.91ms. Allocated memory is still 81.8MB. Free memory was 36.2MB in the beginning and 44.0MB in the end (delta: -7.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5573.64ms. Allocated memory was 81.8MB in the beginning and 216.0MB in the end (delta: 134.2MB). Free memory was 43.5MB in the beginning and 91.1MB in the end (delta: -47.6MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * Witness Printer took 2.08ms. Allocated memory is still 216.0MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 105 PlacesBefore, 48 PlacesAfterwards, 101 TransitionsBefore, 44 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 9 FixpointIterations, 52 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 15445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3411, independent: 2701, independent conditional: 0, independent unconditional: 2701, dependent: 710, dependent conditional: 0, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 821, independent: 757, independent conditional: 0, independent unconditional: 757, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3411, independent: 1944, independent conditional: 0, independent unconditional: 1944, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 821, unknown conditional: 0, unknown unconditional: 821] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 int *z; [L1236] 0 x = malloc(sizeof(int)) [L1237] 0 y = malloc(sizeof(int)) [L1238] 0 z = y [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 \read(*x) VAL [\read(*x)=26, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] 0 printf("%d\n",*x) [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1229] EXPR 1 *y [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1243] EXPR 0 \read(*z) VAL [\read(*z)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1229] 1 *y = 8 VAL [*y = 8=27, arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1243] 0 printf("%d\n",*z) VAL [*y = 8=27, \read(*z)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1236] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1237] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 135 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 414 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1594 IncrementalHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 20 mSDtfsCounter, 1594 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=9, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:55:55,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE