./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.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 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:53:08,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:53:08,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:53:08,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:53:08,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:53:08,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:53:08,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:53:08,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:53:08,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:53:08,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:53:08,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:53:08,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:53:08,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:53:08,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:53:08,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:53:08,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:53:08,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:53:08,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:53:08,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:53:08,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:53:08,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:53:08,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:53:08,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:53:08,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:53:08,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:53:08,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:53:08,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:53:08,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:53:08,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:53:08,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:53:08,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:53:08,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:53:08,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:53:08,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:53:08,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:53:08,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:53:08,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:53:08,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:53:08,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:53:08,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:53:08,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:53:08,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:53:08,265 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:53:08,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:53:08,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:53:08,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:53:08,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:53:08,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:53:08,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:53:08,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:53:08,267 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:53:08,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:53:08,268 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:53:08,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:53:08,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:53:08,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:53:08,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:53:08,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:53:08,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:53:08,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:53:08,269 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:53:08,269 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:53:08,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:53:08,270 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:53:08,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:53:08,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:53:08,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:53:08,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:53:08,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:53:08,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:53:08,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:53:08,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:53:08,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:53:08,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:53:08,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:53:08,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:53:08,272 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:53:08,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:53:08,273 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:53:08,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:53:08,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:53:08,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:53:08,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:53:08,592 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:53:08,592 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:53:08,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2023-08-28 17:53:09,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:53:10,068 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:53:10,069 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2023-08-28 17:53:10,079 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9281ec15/3a9da3d441664fe7aa8b4f13a8fddd19/FLAG0c4ca407c [2023-08-28 17:53:10,093 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9281ec15/3a9da3d441664fe7aa8b4f13a8fddd19 [2023-08-28 17:53:10,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:53:10,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:53:10,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:53:10,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:53:10,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:53:10,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568aa64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10, skipping insertion in model container [2023-08-28 17:53:10,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:53:10,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:53:10,410 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2023-08-28 17:53:10,413 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2023-08-28 17:53:10,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:53:10,434 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:53:10,481 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2023-08-28 17:53:10,482 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2023-08-28 17:53:10,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:53:10,517 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:53:10,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10 WrapperNode [2023-08-28 17:53:10,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:53:10,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:53:10,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:53:10,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:53:10,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,580 INFO L138 Inliner]: procedures = 169, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-08-28 17:53:10,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:53:10,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:53:10,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:53:10,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:53:10,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:53:10,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:53:10,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:53:10,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:53:10,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (1/1) ... [2023-08-28 17:53:10,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:53:10,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:53:10,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-28 17:53:10,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-28 17:53:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2023-08-28 17:53:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2023-08-28 17:53:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:53:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2023-08-28 17:53:10,706 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2023-08-28 17:53:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:53:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-28 17:53:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:53:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:53:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:53:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:53:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:53:10,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:53:10,708 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:53:10,842 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:53:10,844 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:53:11,165 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:53:11,172 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:53:11,172 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-28 17:53:11,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:11 BoogieIcfgContainer [2023-08-28 17:53:11,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:53:11,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:53:11,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:53:11,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:53:11,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:53:10" (1/3) ... [2023-08-28 17:53:11,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2709d5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:53:11, skipping insertion in model container [2023-08-28 17:53:11,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:53:10" (2/3) ... [2023-08-28 17:53:11,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2709d5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:53:11, skipping insertion in model container [2023-08-28 17:53:11,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:11" (3/3) ... [2023-08-28 17:53:11,192 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2023-08-28 17:53:11,199 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:53:11,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:53:11,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-28 17:53:11,208 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:53:11,279 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:53:11,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 144 transitions, 304 flow [2023-08-28 17:53:11,378 INFO L130 PetriNetUnfolder]: 5/142 cut-off events. [2023-08-28 17:53:11,379 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:53:11,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 142 events. 5/142 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 230 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 92. Up to 3 conditions per place. [2023-08-28 17:53:11,384 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 144 transitions, 304 flow [2023-08-28 17:53:11,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 133 transitions, 275 flow [2023-08-28 17:53:11,391 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:53:11,404 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 133 transitions, 275 flow [2023-08-28 17:53:11,411 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 133 transitions, 275 flow [2023-08-28 17:53:11,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 133 transitions, 275 flow [2023-08-28 17:53:11,444 INFO L130 PetriNetUnfolder]: 5/133 cut-off events. [2023-08-28 17:53:11,444 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:53:11,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 133 events. 5/133 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 230 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 92. Up to 3 conditions per place. [2023-08-28 17:53:11,448 INFO L119 LiptonReduction]: Number of co-enabled transitions 3906 [2023-08-28 17:53:14,941 INFO L134 LiptonReduction]: Checked pairs total: 16233 [2023-08-28 17:53:14,941 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-28 17:53:14,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:53:14,958 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;@82cd616, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:53:14,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-08-28 17:53:14,960 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-28 17:53:14,960 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:53:14,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:14,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-28 17:53:14,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:14,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:14,965 INFO L85 PathProgramCache]: Analyzing trace with hash 518, now seen corresponding path program 1 times [2023-08-28 17:53:14,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:14,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353916126] [2023-08-28 17:53:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:14,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:15,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:15,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353916126] [2023-08-28 17:53:15,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353916126] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:15,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:15,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-28 17:53:15,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943025822] [2023-08-28 17:53:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:15,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:53:15,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:15,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:53:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:53:15,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 255 [2023-08-28 17:53:15,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:15,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 255 [2023-08-28 17:53:15,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:15,241 INFO L130 PetriNetUnfolder]: 190/520 cut-off events. [2023-08-28 17:53:15,242 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-28 17:53:15,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 520 events. 190/520 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3015 event pairs, 162 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 807. Up to 306 conditions per place. [2023-08-28 17:53:15,248 INFO L137 encePairwiseOnDemand]: 247/255 looper letters, 21 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2023-08-28 17:53:15,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 129 flow [2023-08-28 17:53:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:53:15,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:53:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2023-08-28 17:53:15,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5862745098039216 [2023-08-28 17:53:15,265 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2023-08-28 17:53:15,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2023-08-28 17:53:15,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:15,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2023-08-28 17:53:15,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,277 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,279 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 107 flow. Second operand 2 states and 299 transitions. [2023-08-28 17:53:15,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 129 flow [2023-08-28 17:53:15,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 39 transitions, 124 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-28 17:53:15,283 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 82 flow [2023-08-28 17:53:15,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-08-28 17:53:15,287 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2023-08-28 17:53:15,288 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 82 flow [2023-08-28 17:53:15,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:15,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-28 17:53:15,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:53:15,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:15,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2049563422, now seen corresponding path program 1 times [2023-08-28 17:53:15,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:15,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426206799] [2023-08-28 17:53:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:15,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:15,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:15,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426206799] [2023-08-28 17:53:15,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426206799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:15,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:15,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:15,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061532047] [2023-08-28 17:53:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:15,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:15,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 255 [2023-08-28 17:53:15,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:15,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 255 [2023-08-28 17:53:15,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:15,553 INFO L130 PetriNetUnfolder]: 155/450 cut-off events. [2023-08-28 17:53:15,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:53:15,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 450 events. 155/450 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2509 event pairs, 79 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 749. Up to 152 conditions per place. [2023-08-28 17:53:15,559 INFO L137 encePairwiseOnDemand]: 252/255 looper letters, 25 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-28 17:53:15,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 150 flow [2023-08-28 17:53:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:15,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2023-08-28 17:53:15,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.550326797385621 [2023-08-28 17:53:15,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 421 transitions. [2023-08-28 17:53:15,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 421 transitions. [2023-08-28 17:53:15,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:15,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 421 transitions. [2023-08-28 17:53:15,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,586 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 82 flow. Second operand 3 states and 421 transitions. [2023-08-28 17:53:15,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 150 flow [2023-08-28 17:53:15,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:53:15,587 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 84 flow [2023-08-28 17:53:15,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-28 17:53:15,588 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -8 predicate places. [2023-08-28 17:53:15,588 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 84 flow [2023-08-28 17:53:15,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:15,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:15,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:53:15,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:15,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:15,589 INFO L85 PathProgramCache]: Analyzing trace with hash 888249122, now seen corresponding path program 1 times [2023-08-28 17:53:15,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:15,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023454669] [2023-08-28 17:53:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:15,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:15,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:15,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023454669] [2023-08-28 17:53:15,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023454669] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:15,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:15,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008860143] [2023-08-28 17:53:15,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:15,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:15,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:15,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:15,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:15,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 255 [2023-08-28 17:53:15,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:15,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 255 [2023-08-28 17:53:15,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:15,791 INFO L130 PetriNetUnfolder]: 209/570 cut-off events. [2023-08-28 17:53:15,791 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-28 17:53:15,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 570 events. 209/570 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3217 event pairs, 173 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 972. Up to 337 conditions per place. [2023-08-28 17:53:15,794 INFO L137 encePairwiseOnDemand]: 251/255 looper letters, 28 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2023-08-28 17:53:15,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 47 transitions, 166 flow [2023-08-28 17:53:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2023-08-28 17:53:15,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437908496732026 [2023-08-28 17:53:15,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2023-08-28 17:53:15,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2023-08-28 17:53:15,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:15,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2023-08-28 17:53:15,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,799 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 84 flow. Second operand 3 states and 416 transitions. [2023-08-28 17:53:15,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 47 transitions, 166 flow [2023-08-28 17:53:15,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 47 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:15,801 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 99 flow [2023-08-28 17:53:15,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2023-08-28 17:53:15,802 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places. [2023-08-28 17:53:15,802 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 99 flow [2023-08-28 17:53:15,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:15,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:15,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:53:15,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting de_allocatorErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:15,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash 888741271, now seen corresponding path program 1 times [2023-08-28 17:53:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:15,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218388810] [2023-08-28 17:53:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:15,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:15,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218388810] [2023-08-28 17:53:15,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218388810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:15,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:15,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:15,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4521248] [2023-08-28 17:53:15,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:15,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:15,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:15,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 255 [2023-08-28 17:53:15,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:15,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:15,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 255 [2023-08-28 17:53:15,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:15,996 INFO L130 PetriNetUnfolder]: 335/868 cut-off events. [2023-08-28 17:53:15,996 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2023-08-28 17:53:15,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 868 events. 335/868 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5318 event pairs, 115 based on Foata normal form. 0/744 useless extension candidates. Maximal degree in co-relation 1571. Up to 326 conditions per place. [2023-08-28 17:53:16,001 INFO L137 encePairwiseOnDemand]: 250/255 looper letters, 36 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-28 17:53:16,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 221 flow [2023-08-28 17:53:16,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:16,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2023-08-28 17:53:16,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5542483660130719 [2023-08-28 17:53:16,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2023-08-28 17:53:16,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2023-08-28 17:53:16,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:16,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2023-08-28 17:53:16,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,008 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 99 flow. Second operand 3 states and 424 transitions. [2023-08-28 17:53:16,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 221 flow [2023-08-28 17:53:16,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:53:16,010 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 128 flow [2023-08-28 17:53:16,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-08-28 17:53:16,011 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places. [2023-08-28 17:53:16,011 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 128 flow [2023-08-28 17:53:16,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:16,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:16,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:53:16,012 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting de_allocatorErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:16,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1918180464, now seen corresponding path program 1 times [2023-08-28 17:53:16,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:16,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605017361] [2023-08-28 17:53:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:16,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:16,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605017361] [2023-08-28 17:53:16,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605017361] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:16,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:16,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-28 17:53:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206866089] [2023-08-28 17:53:16,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:16,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:16,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:16,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 255 [2023-08-28 17:53:16,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:16,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 255 [2023-08-28 17:53:16,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:16,255 INFO L130 PetriNetUnfolder]: 122/401 cut-off events. [2023-08-28 17:53:16,255 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2023-08-28 17:53:16,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 401 events. 122/401 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2082 event pairs, 38 based on Foata normal form. 14/361 useless extension candidates. Maximal degree in co-relation 737. Up to 124 conditions per place. [2023-08-28 17:53:16,258 INFO L137 encePairwiseOnDemand]: 250/255 looper letters, 26 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2023-08-28 17:53:16,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 193 flow [2023-08-28 17:53:16,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2023-08-28 17:53:16,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5424836601307189 [2023-08-28 17:53:16,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 415 transitions. [2023-08-28 17:53:16,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 415 transitions. [2023-08-28 17:53:16,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:16,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 415 transitions. [2023-08-28 17:53:16,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,263 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 128 flow. Second operand 3 states and 415 transitions. [2023-08-28 17:53:16,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 193 flow [2023-08-28 17:53:16,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 177 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-28 17:53:16,269 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 105 flow [2023-08-28 17:53:16,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-08-28 17:53:16,271 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places. [2023-08-28 17:53:16,271 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 105 flow [2023-08-28 17:53:16,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:16,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:16,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:53:16,272 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:16,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:16,273 INFO L85 PathProgramCache]: Analyzing trace with hash -458442418, now seen corresponding path program 1 times [2023-08-28 17:53:16,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:16,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891613127] [2023-08-28 17:53:16,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:16,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:16,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:16,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891613127] [2023-08-28 17:53:16,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891613127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:16,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:16,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:16,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242500497] [2023-08-28 17:53:16,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:16,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:16,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:16,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:16,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:16,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 255 [2023-08-28 17:53:16,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:16,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 255 [2023-08-28 17:53:16,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:16,408 INFO L130 PetriNetUnfolder]: 151/446 cut-off events. [2023-08-28 17:53:16,409 INFO L131 PetriNetUnfolder]: For 83/87 co-relation queries the response was YES. [2023-08-28 17:53:16,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 446 events. 151/446 cut-off events. For 83/87 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2322 event pairs, 99 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 886. Up to 245 conditions per place. [2023-08-28 17:53:16,411 INFO L137 encePairwiseOnDemand]: 249/255 looper letters, 27 selfloop transitions, 5 changer transitions 0/47 dead transitions. [2023-08-28 17:53:16,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 47 transitions, 195 flow [2023-08-28 17:53:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-08-28 17:53:16,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398692810457516 [2023-08-28 17:53:16,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-08-28 17:53:16,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-08-28 17:53:16,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:16,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-08-28 17:53:16,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,417 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 105 flow. Second operand 3 states and 413 transitions. [2023-08-28 17:53:16,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 47 transitions, 195 flow [2023-08-28 17:53:16,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:53:16,419 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 138 flow [2023-08-28 17:53:16,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-08-28 17:53:16,420 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places. [2023-08-28 17:53:16,421 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 138 flow [2023-08-28 17:53:16,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:16,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:16,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:53:16,423 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting de_allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:16,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:16,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1306104324, now seen corresponding path program 1 times [2023-08-28 17:53:16,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:16,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005535782] [2023-08-28 17:53:16,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:16,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:16,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:16,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005535782] [2023-08-28 17:53:16,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005535782] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:16,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:16,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829880930] [2023-08-28 17:53:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:16,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:16,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:16,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:16,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:16,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 255 [2023-08-28 17:53:16,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:16,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 255 [2023-08-28 17:53:16,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:16,560 INFO L130 PetriNetUnfolder]: 185/516 cut-off events. [2023-08-28 17:53:16,560 INFO L131 PetriNetUnfolder]: For 186/200 co-relation queries the response was YES. [2023-08-28 17:53:16,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 516 events. 185/516 cut-off events. For 186/200 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2675 event pairs, 102 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 1164. Up to 278 conditions per place. [2023-08-28 17:53:16,563 INFO L137 encePairwiseOnDemand]: 249/255 looper letters, 29 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2023-08-28 17:53:16,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 253 flow [2023-08-28 17:53:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-08-28 17:53:16,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398692810457516 [2023-08-28 17:53:16,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-08-28 17:53:16,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-08-28 17:53:16,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:16,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-08-28 17:53:16,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,568 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 138 flow. Second operand 3 states and 413 transitions. [2023-08-28 17:53:16,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 253 flow [2023-08-28 17:53:16,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 237 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:16,571 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 196 flow [2023-08-28 17:53:16,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-08-28 17:53:16,571 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2023-08-28 17:53:16,572 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 196 flow [2023-08-28 17:53:16,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:16,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:16,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:53:16,573 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting allocatorErr4ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:16,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1818481017, now seen corresponding path program 1 times [2023-08-28 17:53:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291188433] [2023-08-28 17:53:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:16,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:16,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:16,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291188433] [2023-08-28 17:53:16,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291188433] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:16,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:16,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:53:16,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684253559] [2023-08-28 17:53:16,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:16,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:16,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:16,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:16,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:16,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 255 [2023-08-28 17:53:16,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:16,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 255 [2023-08-28 17:53:16,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:16,723 INFO L130 PetriNetUnfolder]: 243/634 cut-off events. [2023-08-28 17:53:16,723 INFO L131 PetriNetUnfolder]: For 598/656 co-relation queries the response was YES. [2023-08-28 17:53:16,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 634 events. 243/634 cut-off events. For 598/656 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3385 event pairs, 80 based on Foata normal form. 10/604 useless extension candidates. Maximal degree in co-relation 1688. Up to 315 conditions per place. [2023-08-28 17:53:16,725 INFO L137 encePairwiseOnDemand]: 247/255 looper letters, 28 selfloop transitions, 8 changer transitions 18/68 dead transitions. [2023-08-28 17:53:16,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 68 transitions, 377 flow [2023-08-28 17:53:16,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2023-08-28 17:53:16,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5581699346405229 [2023-08-28 17:53:16,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2023-08-28 17:53:16,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2023-08-28 17:53:16,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:16,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2023-08-28 17:53:16,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,730 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 196 flow. Second operand 3 states and 427 transitions. [2023-08-28 17:53:16,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 68 transitions, 377 flow [2023-08-28 17:53:16,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 68 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:53:16,733 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 216 flow [2023-08-28 17:53:16,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2023-08-28 17:53:16,734 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2023-08-28 17:53:16,734 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 216 flow [2023-08-28 17:53:16,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:53:16,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:16,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 17:53:16,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-28 17:53:16,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:53:16,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1737030687, now seen corresponding path program 1 times [2023-08-28 17:53:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:53:16,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746677066] [2023-08-28 17:53:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:53:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:53:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:53:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:53:16,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:53:16,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746677066] [2023-08-28 17:53:16,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746677066] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:53:16,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:53:16,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-28 17:53:16,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080388285] [2023-08-28 17:53:16,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:53:16,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:53:16,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:53:16,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:53:16,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:53:16,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 255 [2023-08-28 17:53:16,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:53:16,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 255 [2023-08-28 17:53:16,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:53:16,814 INFO L130 PetriNetUnfolder]: 43/134 cut-off events. [2023-08-28 17:53:16,815 INFO L131 PetriNetUnfolder]: For 127/131 co-relation queries the response was YES. [2023-08-28 17:53:16,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 134 events. 43/134 cut-off events. For 127/131 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 432 event pairs, 18 based on Foata normal form. 10/142 useless extension candidates. Maximal degree in co-relation 354. Up to 73 conditions per place. [2023-08-28 17:53:16,815 INFO L137 encePairwiseOnDemand]: 253/255 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-08-28 17:53:16,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 144 flow [2023-08-28 17:53:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:53:16,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:53:16,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 419 transitions. [2023-08-28 17:53:16,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477124183006536 [2023-08-28 17:53:16,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 419 transitions. [2023-08-28 17:53:16,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 419 transitions. [2023-08-28 17:53:16,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:53:16,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 419 transitions. [2023-08-28 17:53:16,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,821 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 216 flow. Second operand 3 states and 419 transitions. [2023-08-28 17:53:16,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 144 flow [2023-08-28 17:53:16,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 124 flow, removed 5 selfloop flow, removed 7 redundant places. [2023-08-28 17:53:16,822 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-28 17:53:16,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-28 17:53:16,823 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -16 predicate places. [2023-08-28 17:53:16,823 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-28 17:53:16,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:53:16,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2023-08-28 17:53:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr3ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-08-28 17:53:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-08-28 17:53:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr4ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-08-28 17:53:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr2ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-08-28 17:53:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-08-28 17:53:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining) [2023-08-28 17:53:16,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 22 remaining) [2023-08-28 17:53:16,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-08-28 17:53:16,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-08-28 17:53:16,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-08-28 17:53:16,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr4ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-08-28 17:53:16,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location allocatorErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-08-28 17:53:16,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-08-28 17:53:16,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-08-28 17:53:16,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr2ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-08-28 17:53:16,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-28 17:53:16,829 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:53:16,834 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:53:16,834 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:53:16,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:53:16 BasicIcfg [2023-08-28 17:53:16,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:53:16,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:53:16,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:53:16,838 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:53:16,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:53:11" (3/4) ... [2023-08-28 17:53:16,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-28 17:53:16,845 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2023-08-28 17:53:16,845 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2023-08-28 17:53:16,848 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-28 17:53:16,848 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-28 17:53:16,848 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-28 17:53:16,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-28 17:53:16,873 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-28 17:53:16,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:53:16,874 INFO L158 Benchmark]: Toolchain (without parser) took 6775.26ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 53.3MB in the beginning and 61.9MB in the end (delta: -8.7MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,874 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:53:16,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.58ms. Allocated memory is still 79.7MB. Free memory was 53.1MB in the beginning and 52.2MB in the end (delta: 830.9kB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.49ms. Allocated memory is still 79.7MB. Free memory was 52.2MB in the beginning and 50.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,875 INFO L158 Benchmark]: Boogie Preprocessor took 53.54ms. Allocated memory is still 79.7MB. Free memory was 50.1MB in the beginning and 48.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,876 INFO L158 Benchmark]: RCFGBuilder took 548.14ms. Allocated memory is still 79.7MB. Free memory was 48.4MB in the beginning and 55.5MB in the end (delta: -7.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,876 INFO L158 Benchmark]: TraceAbstraction took 5650.74ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 54.6MB in the beginning and 64.0MB in the end (delta: -9.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,876 INFO L158 Benchmark]: Witness Printer took 36.28ms. Allocated memory is still 123.7MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:53:16,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.58ms. Allocated memory is still 79.7MB. Free memory was 53.1MB in the beginning and 52.2MB in the end (delta: 830.9kB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.49ms. Allocated memory is still 79.7MB. Free memory was 52.2MB in the beginning and 50.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.54ms. Allocated memory is still 79.7MB. Free memory was 50.1MB in the beginning and 48.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.14ms. Allocated memory is still 79.7MB. Free memory was 48.4MB in the beginning and 55.5MB in the end (delta: -7.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5650.74ms. Allocated memory was 79.7MB in the beginning and 123.7MB in the end (delta: 44.0MB). Free memory was 54.6MB in the beginning and 64.0MB in the end (delta: -9.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Witness Printer took 36.28ms. Allocated memory is still 123.7MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 135 PlacesBefore, 52 PlacesAfterwards, 133 TransitionsBefore, 49 TransitionsAfterwards, 3906 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 111 TotalNumberOfCompositions, 16233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6824, independent: 6327, independent conditional: 0, independent unconditional: 6327, dependent: 497, dependent conditional: 0, dependent unconditional: 497, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2060, independent: 2001, independent conditional: 0, independent unconditional: 2001, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6824, independent: 4326, independent conditional: 0, independent unconditional: 4326, dependent: 438, dependent conditional: 0, dependent unconditional: 438, unknown: 2060, unknown conditional: 0, unknown unconditional: 2060] , Statistics on independence cache: Total cache size (in pairs): 313, Positive cache size: 281, Positive conditional cache size: 0, Positive unconditional cache size: 281, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 203 locations, 22 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: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 233 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 41 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=8, InterpolantAutomatonStates: 26, 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, 0.4s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 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 - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-28 17:53:16,893 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 Result: TRUE