./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/dekker-b.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/dekker-b.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 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --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 17:52:04,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:52:04,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:52:04,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:52:04,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:52:04,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:52:04,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:52:04,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:52:04,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:52:04,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:52:04,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:52:04,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:52:04,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:52:04,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:52:04,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:52:04,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:52:04,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:52:04,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:52:04,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:52:04,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:52:04,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:52:04,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:52:04,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:52:04,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:52:04,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:52:04,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:52:04,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:52:04,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:52:04,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:52:04,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:52:04,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:52:04,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:52:04,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:52:04,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:52:04,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:52:04,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:52:04,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:52:04,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:52:04,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:52:04,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:52:04,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:52:04,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:52:04,518 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:52:04,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:52:04,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:52:04,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:52:04,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:52:04,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:52:04,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:52:04,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:52:04,521 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:52:04,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:52:04,521 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:52:04,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:52:04,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:52:04,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:52:04,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:52:04,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:52:04,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:52:04,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:52:04,523 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:52:04,523 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:52:04,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:52:04,523 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:52:04,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:52:04,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:52:04,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:52:04,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:52:04,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:04,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:52:04,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:52:04,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:52:04,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:52:04,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:52:04,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:52:04,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:52:04,526 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:52:04,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:52:04,526 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:52:04,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:52:04,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:52:04,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:52:04,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:52:04,876 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:52:04,876 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:52:04,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker-b.i [2023-08-28 17:52:06,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:52:06,381 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:52:06,381 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i [2023-08-28 17:52:06,393 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8828b607e/5c5c331346364eaa8ca070586905ae3c/FLAG4200fa329 [2023-08-28 17:52:06,407 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8828b607e/5c5c331346364eaa8ca070586905ae3c [2023-08-28 17:52:06,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:52:06,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:52:06,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:06,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:52:06,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:52:06,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7509224e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06, skipping insertion in model container [2023-08-28 17:52:06,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:52:06,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:52:06,733 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/dekker-b.i[30165,30178] [2023-08-28 17:52:06,738 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/dekker-b.i[30411,30424] [2023-08-28 17:52:06,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:06,763 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:52:06,802 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/dekker-b.i[30165,30178] [2023-08-28 17:52:06,806 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/dekker-b.i[30411,30424] [2023-08-28 17:52:06,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:06,863 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:52:06,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06 WrapperNode [2023-08-28 17:52:06,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:06,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:06,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:52:06,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:52:06,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,901 INFO L138 Inliner]: procedures = 168, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-08-28 17:52:06,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:06,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:52:06,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:52:06,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:52:06,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:52:06,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:52:06,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:52:06,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:52:06,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (1/1) ... [2023-08-28 17:52:06,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:06,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:52:06,958 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 17:52:06,968 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 17:52:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:52:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-28 17:52:06,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-28 17:52:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 17:52:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 17:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:52:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:52:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:52:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:52:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:52:06,998 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 17:52:07,165 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:52:07,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:52:07,502 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:52:07,510 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:52:07,510 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-28 17:52:07,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:07 BoogieIcfgContainer [2023-08-28 17:52:07,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:52:07,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:52:07,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:52:07,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:52:07,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:52:06" (1/3) ... [2023-08-28 17:52:07,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1e47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:07, skipping insertion in model container [2023-08-28 17:52:07,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:06" (2/3) ... [2023-08-28 17:52:07,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1e47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:07, skipping insertion in model container [2023-08-28 17:52:07,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:07" (3/3) ... [2023-08-28 17:52:07,522 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2023-08-28 17:52:07,530 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:52:07,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:52:07,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-28 17:52:07,539 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:52:07,622 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:52:07,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 197 transitions, 410 flow [2023-08-28 17:52:07,707 INFO L130 PetriNetUnfolder]: 14/195 cut-off events. [2023-08-28 17:52:07,707 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:52:07,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 195 events. 14/195 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 459 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2023-08-28 17:52:07,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 197 transitions, 410 flow [2023-08-28 17:52:07,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 186 transitions, 381 flow [2023-08-28 17:52:07,727 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:52:07,735 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 186 transitions, 381 flow [2023-08-28 17:52:07,737 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 186 transitions, 381 flow [2023-08-28 17:52:07,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 186 transitions, 381 flow [2023-08-28 17:52:07,780 INFO L130 PetriNetUnfolder]: 14/186 cut-off events. [2023-08-28 17:52:07,780 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:52:07,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 186 events. 14/186 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 458 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2023-08-28 17:52:07,791 INFO L119 LiptonReduction]: Number of co-enabled transitions 12096 [2023-08-28 17:52:10,652 INFO L134 LiptonReduction]: Checked pairs total: 79496 [2023-08-28 17:52:10,652 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-08-28 17:52:10,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:52:10,670 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;@7be3eb5f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:52:10,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-08-28 17:52:10,671 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-28 17:52:10,671 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:52:10,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:10,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-28 17:52:10,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:10,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:10,677 INFO L85 PathProgramCache]: Analyzing trace with hash 721, now seen corresponding path program 1 times [2023-08-28 17:52:10,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:10,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883316316] [2023-08-28 17:52:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:10,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:10,757 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 17:52:10,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:10,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883316316] [2023-08-28 17:52:10,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883316316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:10,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:10,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-28 17:52:10,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033117442] [2023-08-28 17:52:10,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:10,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 17:52:10,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:10,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 17:52:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 17:52:10,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 311 [2023-08-28 17:52:10,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 103 transitions, 215 flow. Second operand has 2 states, 2 states have (on average 184.5) internal successors, (369), 2 states have internal predecessors, (369), 0 states have call successors, (0), 0 states 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 17:52:10,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:10,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 311 [2023-08-28 17:52:10,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:11,016 INFO L130 PetriNetUnfolder]: 587/1571 cut-off events. [2023-08-28 17:52:11,016 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-28 17:52:11,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2561 conditions, 1571 events. 587/1571 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11438 event pairs, 501 based on Foata normal form. 142/1528 useless extension candidates. Maximal degree in co-relation 2425. Up to 947 conditions per place. [2023-08-28 17:52:11,029 INFO L137 encePairwiseOnDemand]: 302/311 looper letters, 33 selfloop transitions, 0 changer transitions 0/93 dead transitions. [2023-08-28 17:52:11,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 261 flow [2023-08-28 17:52:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 17:52:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 17:52:11,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 410 transitions. [2023-08-28 17:52:11,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6591639871382636 [2023-08-28 17:52:11,047 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 410 transitions. [2023-08-28 17:52:11,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 410 transitions. [2023-08-28 17:52:11,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:11,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 410 transitions. [2023-08-28 17:52:11,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 205.0) internal successors, (410), 2 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 17:52:11,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states 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 17:52:11,062 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 0 states have call successors, (0), 0 states 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 17:52:11,063 INFO L175 Difference]: Start difference. First operand has 99 places, 103 transitions, 215 flow. Second operand 2 states and 410 transitions. [2023-08-28 17:52:11,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 261 flow [2023-08-28 17:52:11,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-28 17:52:11,069 INFO L231 Difference]: Finished difference. Result has 92 places, 93 transitions, 190 flow [2023-08-28 17:52:11,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=190, PETRI_PLACES=92, PETRI_TRANSITIONS=93} [2023-08-28 17:52:11,074 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -7 predicate places. [2023-08-28 17:52:11,074 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 93 transitions, 190 flow [2023-08-28 17:52:11,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 184.5) internal successors, (369), 2 states have internal predecessors, (369), 0 states have call successors, (0), 0 states 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 17:52:11,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:11,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:52:11,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:52:11,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:11,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:11,076 INFO L85 PathProgramCache]: Analyzing trace with hash 692113465, now seen corresponding path program 1 times [2023-08-28 17:52:11,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:11,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559928097] [2023-08-28 17:52:11,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:11,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:11,168 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 17:52:11,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:11,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559928097] [2023-08-28 17:52:11,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559928097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:11,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:11,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:11,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913790244] [2023-08-28 17:52:11,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:11,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:11,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:11,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:11,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:11,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 311 [2023-08-28 17:52:11,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states 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 17:52:11,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:11,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 311 [2023-08-28 17:52:11,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:11,410 INFO L130 PetriNetUnfolder]: 810/2093 cut-off events. [2023-08-28 17:52:11,410 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:52:11,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 2093 events. 810/2093 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 15304 event pairs, 625 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 3407. Up to 1209 conditions per place. [2023-08-28 17:52:11,421 INFO L137 encePairwiseOnDemand]: 307/311 looper letters, 53 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2023-08-28 17:52:11,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 112 transitions, 342 flow [2023-08-28 17:52:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2023-08-28 17:52:11,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6237942122186495 [2023-08-28 17:52:11,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2023-08-28 17:52:11,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2023-08-28 17:52:11,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:11,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2023-08-28 17:52:11,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states 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 17:52:11,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:11,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:11,432 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 190 flow. Second operand 3 states and 582 transitions. [2023-08-28 17:52:11,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 112 transitions, 342 flow [2023-08-28 17:52:11,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 17:52:11,436 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 209 flow [2023-08-28 17:52:11,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2023-08-28 17:52:11,437 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -4 predicate places. [2023-08-28 17:52:11,437 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 209 flow [2023-08-28 17:52:11,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states 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 17:52:11,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:11,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:11,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:52:11,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:11,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -598758925, now seen corresponding path program 1 times [2023-08-28 17:52:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:11,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854393254] [2023-08-28 17:52:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:11,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:11,531 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 17:52:11,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:11,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854393254] [2023-08-28 17:52:11,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854393254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:11,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:11,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:11,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056269465] [2023-08-28 17:52:11,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:11,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:11,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:11,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 311 [2023-08-28 17:52:11,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:11,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:11,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 311 [2023-08-28 17:52:11,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:11,918 INFO L130 PetriNetUnfolder]: 1396/3948 cut-off events. [2023-08-28 17:52:11,919 INFO L131 PetriNetUnfolder]: For 70/122 co-relation queries the response was YES. [2023-08-28 17:52:11,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 3948 events. 1396/3948 cut-off events. For 70/122 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 34225 event pairs, 292 based on Foata normal form. 30/3449 useless extension candidates. Maximal degree in co-relation 6271. Up to 1172 conditions per place. [2023-08-28 17:52:11,941 INFO L137 encePairwiseOnDemand]: 304/311 looper letters, 64 selfloop transitions, 6 changer transitions 0/127 dead transitions. [2023-08-28 17:52:11,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 127 transitions, 416 flow [2023-08-28 17:52:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2023-08-28 17:52:11,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6441586280814576 [2023-08-28 17:52:11,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 601 transitions. [2023-08-28 17:52:11,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions. [2023-08-28 17:52:11,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:11,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions. [2023-08-28 17:52:11,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states 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 17:52:11,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:11,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:11,948 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 209 flow. Second operand 3 states and 601 transitions. [2023-08-28 17:52:11,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 127 transitions, 416 flow [2023-08-28 17:52:11,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:11,953 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 256 flow [2023-08-28 17:52:11,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2023-08-28 17:52:11,955 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2023-08-28 17:52:11,955 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 256 flow [2023-08-28 17:52:11,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 17:52:11,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:11,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:11,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:52:11,956 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:11,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -564568659, now seen corresponding path program 1 times [2023-08-28 17:52:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203961412] [2023-08-28 17:52:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:12,045 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 17:52:12,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:12,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203961412] [2023-08-28 17:52:12,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203961412] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:12,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:12,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:12,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229001985] [2023-08-28 17:52:12,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:12,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:12,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:12,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:12,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:12,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 311 [2023-08-28 17:52:12,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 17:52:12,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:12,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 311 [2023-08-28 17:52:12,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:12,423 INFO L130 PetriNetUnfolder]: 1419/3747 cut-off events. [2023-08-28 17:52:12,426 INFO L131 PetriNetUnfolder]: For 621/713 co-relation queries the response was YES. [2023-08-28 17:52:12,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6601 conditions, 3747 events. 1419/3747 cut-off events. For 621/713 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 31240 event pairs, 904 based on Foata normal form. 44/3262 useless extension candidates. Maximal degree in co-relation 6595. Up to 2086 conditions per place. [2023-08-28 17:52:12,445 INFO L137 encePairwiseOnDemand]: 307/311 looper letters, 55 selfloop transitions, 5 changer transitions 0/119 dead transitions. [2023-08-28 17:52:12,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 119 transitions, 421 flow [2023-08-28 17:52:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2023-08-28 17:52:12,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6205787781350482 [2023-08-28 17:52:12,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2023-08-28 17:52:12,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2023-08-28 17:52:12,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:12,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2023-08-28 17:52:12,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 17:52:12,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:12,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:12,456 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 256 flow. Second operand 3 states and 579 transitions. [2023-08-28 17:52:12,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 119 transitions, 421 flow [2023-08-28 17:52:12,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:12,463 INFO L231 Difference]: Finished difference. Result has 99 places, 104 transitions, 277 flow [2023-08-28 17:52:12,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=99, PETRI_TRANSITIONS=104} [2023-08-28 17:52:12,465 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2023-08-28 17:52:12,465 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 104 transitions, 277 flow [2023-08-28 17:52:12,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 17:52:12,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:12,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:12,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:52:12,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:12,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1384434450, now seen corresponding path program 1 times [2023-08-28 17:52:12,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:12,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159801792] [2023-08-28 17:52:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:12,516 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 17:52:12,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:12,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159801792] [2023-08-28 17:52:12,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159801792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:12,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:12,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:12,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845703252] [2023-08-28 17:52:12,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:12,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:12,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:12,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:12,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 311 [2023-08-28 17:52:12,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 17:52:12,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:12,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 311 [2023-08-28 17:52:12,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:13,158 INFO L130 PetriNetUnfolder]: 2518/6878 cut-off events. [2023-08-28 17:52:13,158 INFO L131 PetriNetUnfolder]: For 846/928 co-relation queries the response was YES. [2023-08-28 17:52:13,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11780 conditions, 6878 events. 2518/6878 cut-off events. For 846/928 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 65506 event pairs, 559 based on Foata normal form. 5/5928 useless extension candidates. Maximal degree in co-relation 11773. Up to 2001 conditions per place. [2023-08-28 17:52:13,232 INFO L137 encePairwiseOnDemand]: 304/311 looper letters, 70 selfloop transitions, 7 changer transitions 0/137 dead transitions. [2023-08-28 17:52:13,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 137 transitions, 514 flow [2023-08-28 17:52:13,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 600 transitions. [2023-08-28 17:52:13,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6430868167202572 [2023-08-28 17:52:13,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 600 transitions. [2023-08-28 17:52:13,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 600 transitions. [2023-08-28 17:52:13,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:13,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 600 transitions. [2023-08-28 17:52:13,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states 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 17:52:13,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:13,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:13,239 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 277 flow. Second operand 3 states and 600 transitions. [2023-08-28 17:52:13,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 137 transitions, 514 flow [2023-08-28 17:52:13,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 137 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:13,243 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 336 flow [2023-08-28 17:52:13,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=102, PETRI_TRANSITIONS=111} [2023-08-28 17:52:13,244 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2023-08-28 17:52:13,244 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 336 flow [2023-08-28 17:52:13,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 17:52:13,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:13,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:13,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:52:13,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:13,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:13,246 INFO L85 PathProgramCache]: Analyzing trace with hash -627398240, now seen corresponding path program 1 times [2023-08-28 17:52:13,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:13,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135422400] [2023-08-28 17:52:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:13,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:13,279 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 17:52:13,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:13,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135422400] [2023-08-28 17:52:13,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135422400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:13,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:13,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:13,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021284690] [2023-08-28 17:52:13,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:13,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:13,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:13,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:13,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:13,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 311 [2023-08-28 17:52:13,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 17:52:13,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:13,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 311 [2023-08-28 17:52:13,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:13,650 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-28 17:52:13,650 INFO L383 tUnfolder$Statistics]: this new event has 34 ancestors and is cut-off event [2023-08-28 17:52:13,650 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,651 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-28 17:52:13,651 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-28 17:52:13,659 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-28 17:52:13,659 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-08-28 17:52:13,659 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-08-28 17:52:13,659 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,660 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-08-28 17:52:13,679 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,679 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-28 17:52:13,680 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-08-28 17:52:13,680 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2023-08-28 17:52:13,680 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,687 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 53#L716true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,687 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-28 17:52:13,687 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-28 17:52:13,687 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-28 17:52:13,688 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-28 17:52:13,693 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 218#true, Black: 201#true, thr2Thread1of1ForFork1InUse, 163#L716-6true]) [2023-08-28 17:52:13,693 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-28 17:52:13,693 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-28 17:52:13,693 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-28 17:52:13,693 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-28 17:52:13,701 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 137#L694true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 163#L716-6true]) [2023-08-28 17:52:13,702 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-28 17:52:13,702 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-08-28 17:52:13,702 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-08-28 17:52:13,702 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-08-28 17:52:13,719 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, Black: 201#true, thr2Thread1of1ForFork1InUse, 163#L716-6true, 10#L700-2true]) [2023-08-28 17:52:13,720 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-28 17:52:13,720 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-28 17:52:13,720 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-28 17:52:13,720 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-28 17:52:13,721 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, 77#L717-2true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-28 17:52:13,721 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-28 17:52:13,721 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-28 17:52:13,721 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-08-28 17:52:13,721 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-28 17:52:13,764 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 163#L716-6true, 10#L700-2true]) [2023-08-28 17:52:13,764 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-28 17:52:13,764 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,764 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,764 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-08-28 17:52:13,765 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 77#L717-2true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-28 17:52:13,765 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-28 17:52:13,765 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,765 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-08-28 17:52:13,765 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,771 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 137#L694true, 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-28 17:52:13,772 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-28 17:52:13,772 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,772 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-08-28 17:52:13,772 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-08-28 17:52:13,772 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([592] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14_13| |v_#race~flag2~0_16|) InVars {} OutVars{thr2Thread1of1ForFork1_#t~nondet14=|v_thr2Thread1of1ForFork1_#t~nondet14_13|, #race~flag2~0=|v_#race~flag2~0_16|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#t~nondet14, #race~flag2~0][119], [214#(= |#race~flag1~0| 0), 116#L693-2true, 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 144#L718-3true, thr2Thread1of1ForFork1InUse, Black: 203#(= |#race~flag2~0| 0)]) [2023-08-28 17:52:13,772 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-28 17:52:13,773 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,773 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,773 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-28 17:52:13,777 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([530] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][18], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, 137#L694true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true]) [2023-08-28 17:52:13,777 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-28 17:52:13,777 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,777 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,778 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-28 17:52:13,778 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([592] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14_13| |v_#race~flag2~0_16|) InVars {} OutVars{thr2Thread1of1ForFork1_#t~nondet14=|v_thr2Thread1of1ForFork1_#t~nondet14_13|, #race~flag2~0=|v_#race~flag2~0_16|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#t~nondet14, #race~flag2~0][119], [214#(= |#race~flag1~0| 0), 116#L693-2true, 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, thr2Thread1of1ForFork1InUse, 144#L718-3true, Black: 203#(= |#race~flag2~0| 0)]) [2023-08-28 17:52:13,778 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-28 17:52:13,778 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,778 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-08-28 17:52:13,778 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,783 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, 77#L717-2true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,783 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-28 17:52:13,783 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,783 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-28 17:52:13,783 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-28 17:52:13,785 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 77#L717-2true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,785 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-28 17:52:13,785 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-08-28 17:52:13,785 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,786 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,789 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [214#(= |#race~flag1~0| 0), 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 12#L718-1true, Black: 212#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,789 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-28 17:52:13,789 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-28 17:52:13,789 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-28 17:52:13,789 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-28 17:52:13,790 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 141#L725-4true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,790 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-28 17:52:13,790 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,790 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-08-28 17:52:13,790 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-28 17:52:13,791 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [214#(= |#race~flag1~0| 0), 220#(= ~flag2~0 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, 12#L718-1true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 212#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,791 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-28 17:52:13,791 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-08-28 17:52:13,791 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-28 17:52:13,792 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-08-28 17:52:13,792 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([626] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [214#(= |#race~flag1~0| 0), Black: 209#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 193#true, 67#L726-6true, Black: 198#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 128#L718true, Black: 212#true, 218#true, thr2Thread1of1ForFork1InUse, Black: 201#true, 10#L700-2true]) [2023-08-28 17:52:13,792 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-28 17:52:13,792 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-28 17:52:13,792 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-28 17:52:13,792 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-28 17:52:13,795 INFO L130 PetriNetUnfolder]: 2478/6456 cut-off events. [2023-08-28 17:52:13,795 INFO L131 PetriNetUnfolder]: For 993/1105 co-relation queries the response was YES. [2023-08-28 17:52:13,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11783 conditions, 6456 events. 2478/6456 cut-off events. For 993/1105 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 59456 event pairs, 763 based on Foata normal form. 88/5723 useless extension candidates. Maximal degree in co-relation 11775. Up to 2388 conditions per place. [2023-08-28 17:52:13,830 INFO L137 encePairwiseOnDemand]: 305/311 looper letters, 56 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2023-08-28 17:52:13,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 511 flow [2023-08-28 17:52:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-08-28 17:52:13,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6280814576634512 [2023-08-28 17:52:13,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-08-28 17:52:13,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-08-28 17:52:13,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:13,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-08-28 17:52:13,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states 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 17:52:13,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:13,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 17:52:13,838 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 336 flow. Second operand 3 states and 586 transitions. [2023-08-28 17:52:13,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 129 transitions, 511 flow [2023-08-28 17:52:13,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 129 transitions, 493 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:13,843 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 339 flow [2023-08-28 17:52:13,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2023-08-28 17:52:13,844 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 4 predicate places. [2023-08-28 17:52:13,844 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 339 flow [2023-08-28 17:52:13,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 17:52:13,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:13,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:13,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:52:13,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-08-28 17:52:13,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2128350431, now seen corresponding path program 1 times [2023-08-28 17:52:13,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:13,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024341896] [2023-08-28 17:52:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:13,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:52:13,864 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 17:52:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:52:13,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 17:52:13,891 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 17:52:13,892 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2023-08-28 17:52:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-08-28 17:52:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-08-28 17:52:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-08-28 17:52:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-08-28 17:52:13,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-08-28 17:52:13,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-08-28 17:52:13,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-08-28 17:52:13,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-08-28 17:52:13,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-08-28 17:52:13,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-08-28 17:52:13,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-08-28 17:52:13,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-08-28 17:52:13,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-08-28 17:52:13,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-08-28 17:52:13,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-08-28 17:52:13,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2023-08-28 17:52:13,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2023-08-28 17:52:13,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-08-28 17:52:13,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-08-28 17:52:13,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-08-28 17:52:13,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-08-28 17:52:13,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-08-28 17:52:13,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-08-28 17:52:13,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-08-28 17:52:13,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 46 remaining) [2023-08-28 17:52:13,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 46 remaining) [2023-08-28 17:52:13,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-08-28 17:52:13,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-08-28 17:52:13,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-08-28 17:52:13,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-08-28 17:52:13,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-08-28 17:52:13,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-08-28 17:52:13,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-08-28 17:52:13,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-08-28 17:52:13,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-08-28 17:52:13,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-08-28 17:52:13,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-08-28 17:52:13,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-08-28 17:52:13,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-08-28 17:52:13,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-08-28 17:52:13,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-08-28 17:52:13,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-08-28 17:52:13,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-08-28 17:52:13,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-08-28 17:52:13,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-08-28 17:52:13,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:52:13,904 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:13,909 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:52:13,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:52:13,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:52:13 BasicIcfg [2023-08-28 17:52:13,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:52:13,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:52:13,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:52:13,933 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:52:13,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:07" (3/4) ... [2023-08-28 17:52:13,936 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 17:52:13,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:52:13,937 INFO L158 Benchmark]: Toolchain (without parser) took 7526.14ms. Allocated memory was 79.7MB in the beginning and 549.5MB in the end (delta: 469.8MB). Free memory was 56.3MB in the beginning and 414.6MB in the end (delta: -358.3MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. [2023-08-28 17:52:13,937 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 40.9MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:13,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.81ms. Allocated memory is still 79.7MB. Free memory was 56.1MB in the beginning and 56.2MB in the end (delta: -135.4kB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:13,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.56ms. Allocated memory is still 79.7MB. Free memory was 56.2MB in the beginning and 54.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:13,938 INFO L158 Benchmark]: Boogie Preprocessor took 27.48ms. Allocated memory is still 79.7MB. Free memory was 54.2MB in the beginning and 52.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:13,938 INFO L158 Benchmark]: RCFGBuilder took 583.92ms. Allocated memory is still 79.7MB. Free memory was 52.5MB in the beginning and 34.2MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-28 17:52:13,939 INFO L158 Benchmark]: TraceAbstraction took 6415.93ms. Allocated memory was 79.7MB in the beginning and 549.5MB in the end (delta: 469.8MB). Free memory was 33.6MB in the beginning and 414.6MB in the end (delta: -381.0MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. [2023-08-28 17:52:13,939 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 549.5MB. Free memory is still 414.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:13,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 40.9MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.81ms. Allocated memory is still 79.7MB. Free memory was 56.1MB in the beginning and 56.2MB in the end (delta: -135.4kB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.56ms. Allocated memory is still 79.7MB. Free memory was 56.2MB in the beginning and 54.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.48ms. Allocated memory is still 79.7MB. Free memory was 54.2MB in the beginning and 52.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 583.92ms. Allocated memory is still 79.7MB. Free memory was 52.5MB in the beginning and 34.2MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6415.93ms. Allocated memory was 79.7MB in the beginning and 549.5MB in the end (delta: 469.8MB). Free memory was 33.6MB in the beginning and 414.6MB in the end (delta: -381.0MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 549.5MB. Free memory is still 414.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 179 PlacesBefore, 99 PlacesAfterwards, 186 TransitionsBefore, 103 TransitionsAfterwards, 12096 CoEnabledTransitionPairs, 8 FixpointIterations, 38 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 114 TotalNumberOfCompositions, 79496 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26805, independent: 25465, independent conditional: 0, independent unconditional: 25465, dependent: 1340, dependent conditional: 0, dependent unconditional: 1340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5639, independent: 5520, independent conditional: 0, independent unconditional: 5520, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26805, independent: 19945, independent conditional: 0, independent unconditional: 19945, dependent: 1221, dependent conditional: 0, dependent unconditional: 1221, unknown: 5639, unknown conditional: 0, unknown unconditional: 5639] , Statistics on independence cache: Total cache size (in pairs): 1469, Positive cache size: 1384, Positive conditional cache size: 0, Positive unconditional cache size: 1384, Negative cache size: 85, Negative conditional cache size: 0, Negative unconditional cache size: 85, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int flag1 = 0, flag2 = 0; [L689] 0 int turn; [L690] 0 int x; [L722] 0 pthread_t t1, t2; [L723] EXPR 0 0<=turn [L723] EXPR 0 0<=turn && turn<=1 [L723] EXPR 0 turn<=1 [L723] EXPR 0 0<=turn && turn<=1 [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [707] and C: flag2 >= 1 [693] - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 302 locations, 46 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: 6.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 534 IncrementalHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 26 mSDtfsCounter, 534 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-28 17:52:13,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE