./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:58:47,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:58:47,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:58:47,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:58:47,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:58:47,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:58:47,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:58:47,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:58:47,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:58:47,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:58:47,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:58:47,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:58:47,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:58:47,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:58:47,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:58:47,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:58:47,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:58:47,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:58:47,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:58:47,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:58:47,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:58:47,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:58:47,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:58:47,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:58:47,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:58:47,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:58:47,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:58:47,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:58:47,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:58:47,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:58:47,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:58:47,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:58:47,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:58:47,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:58:47,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:58:47,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:58:47,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:58:47,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:58:47,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:58:47,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:58:47,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:58:47,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:58:47,468 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:58:47,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:58:47,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:58:47,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:58:47,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:58:47,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:58:47,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:58:47,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:58:47,472 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:58:47,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:58:47,473 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:58:47,473 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:58:47,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:58:47,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:58:47,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:58:47,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:58:47,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:58:47,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:58:47,474 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:58:47,474 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:58:47,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:58:47,475 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:58:47,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:58:47,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:58:47,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:58:47,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:58:47,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:58:47,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:58:47,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:58:47,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:58:47,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:58:47,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:58:47,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:58:47,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:58:47,477 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:58:47,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:58:47,478 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:58:47,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:58:47,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:58:47,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:58:47,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:58:47,804 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:58:47,805 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:58:47,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i [2023-08-31 19:58:48,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:58:49,206 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:58:49,207 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_09-idxsense_rc.i [2023-08-31 19:58:49,219 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4a53fb2/b1b36745507140aeaa1287f6de234f81/FLAG95a538491 [2023-08-31 19:58:49,231 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4a53fb2/b1b36745507140aeaa1287f6de234f81 [2023-08-31 19:58:49,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:58:49,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:58:49,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:58:49,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:58:49,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:58:49,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1368390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49, skipping insertion in model container [2023-08-31 19:58:49,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:58:49,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:58:49,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:58:49,509 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:58:49,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:58:49,586 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:58:49,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49 WrapperNode [2023-08-31 19:58:49,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:58:49,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:58:49,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:58:49,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:58:49,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,622 INFO L138 Inliner]: procedures = 161, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-08-31 19:58:49,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:58:49,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:58:49,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:58:49,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:58:49,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:58:49,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:58:49,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:58:49,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:58:49,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (1/1) ... [2023-08-31 19:58:49,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:58:49,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:58:49,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:58:49,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:58:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:58:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:58:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:58:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:58:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:58:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:58:49,733 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:58:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:58:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:58:49,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:58:49,735 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:58:49,902 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:58:49,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:58:50,098 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:58:50,104 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:58:50,106 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-31 19:58:50,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:58:50 BoogieIcfgContainer [2023-08-31 19:58:50,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:58:50,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:58:50,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:58:50,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:58:50,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:58:49" (1/3) ... [2023-08-31 19:58:50,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1040d9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:58:50, skipping insertion in model container [2023-08-31 19:58:50,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:58:49" (2/3) ... [2023-08-31 19:58:50,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1040d9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:58:50, skipping insertion in model container [2023-08-31 19:58:50,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:58:50" (3/3) ... [2023-08-31 19:58:50,117 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2023-08-31 19:58:50,124 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:58:50,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:58:50,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:58:50,133 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:58:50,224 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:58:50,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 163 flow [2023-08-31 19:58:50,324 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2023-08-31 19:58:50,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:50,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-31 19:58:50,328 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 79 transitions, 163 flow [2023-08-31 19:58:50,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 78 transitions, 159 flow [2023-08-31 19:58:50,337 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:58:50,370 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 159 flow [2023-08-31 19:58:50,373 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 159 flow [2023-08-31 19:58:50,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 159 flow [2023-08-31 19:58:50,402 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2023-08-31 19:58:50,403 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:50,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-31 19:58:50,405 INFO L119 LiptonReduction]: Number of co-enabled transitions 1450 [2023-08-31 19:58:51,530 INFO L134 LiptonReduction]: Checked pairs total: 5861 [2023-08-31 19:58:51,531 INFO L136 LiptonReduction]: Total number of compositions: 43 [2023-08-31 19:58:51,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:58:51,548 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;@179fc16d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:58:51,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 19:58:51,553 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2023-08-31 19:58:51,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:51,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:51,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:51,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:51,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1120639493, now seen corresponding path program 1 times [2023-08-31 19:58:51,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:51,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490520464] [2023-08-31 19:58:51,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:51,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:51,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:51,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490520464] [2023-08-31 19:58:51,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490520464] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:51,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:51,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:51,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123917897] [2023-08-31 19:58:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:51,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:51,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:51,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 122 [2023-08-31 19:58:51,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:51,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:51,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 122 [2023-08-31 19:58:51,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:51,906 INFO L130 PetriNetUnfolder]: 31/144 cut-off events. [2023-08-31 19:58:51,907 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:51,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 144 events. 31/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 517 event pairs, 30 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 210. Up to 76 conditions per place. [2023-08-31 19:58:51,909 INFO L137 encePairwiseOnDemand]: 119/122 looper letters, 14 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-31 19:58:51,909 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 109 flow [2023-08-31 19:58:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2023-08-31 19:58:51,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2023-08-31 19:58:51,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2023-08-31 19:58:51,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2023-08-31 19:58:51,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:51,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2023-08-31 19:58:51,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:51,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:51,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:51,933 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 236 transitions. [2023-08-31 19:58:51,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 109 flow [2023-08-31 19:58:51,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:51,937 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-31 19:58:51,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-31 19:58:51,942 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-08-31 19:58:51,943 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-31 19:58:51,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:51,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:51,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:51,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:58:51,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:51,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:51,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1975304121, now seen corresponding path program 1 times [2023-08-31 19:58:51,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:51,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441332499] [2023-08-31 19:58:51,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:52,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:52,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:52,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441332499] [2023-08-31 19:58:52,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441332499] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:58:52,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485838107] [2023-08-31 19:58:52,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:52,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:58:52,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:58:52,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:58:52,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 19:58:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:52,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 19:58:52,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:58:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:52,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 19:58:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:52,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485838107] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 19:58:52,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 19:58:52,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-31 19:58:52,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756163286] [2023-08-31 19:58:52,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 19:58:52,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:58:52,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:52,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:58:52,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:58:52,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2023-08-31 19:58:52,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:52,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:52,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2023-08-31 19:58:52,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:52,354 INFO L130 PetriNetUnfolder]: 31/147 cut-off events. [2023-08-31 19:58:52,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:52,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 147 events. 31/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 520 event pairs, 30 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 229. Up to 76 conditions per place. [2023-08-31 19:58:52,356 INFO L137 encePairwiseOnDemand]: 119/122 looper letters, 14 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-31 19:58:52,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 136 flow [2023-08-31 19:58:52,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:58:52,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:58:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 454 transitions. [2023-08-31 19:58:52,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6202185792349727 [2023-08-31 19:58:52,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 454 transitions. [2023-08-31 19:58:52,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 454 transitions. [2023-08-31 19:58:52,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:52,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 454 transitions. [2023-08-31 19:58:52,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:52,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:52,372 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:52,372 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 454 transitions. [2023-08-31 19:58:52,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 136 flow [2023-08-31 19:58:52,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 132 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:52,374 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-31 19:58:52,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-31 19:58:52,375 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-08-31 19:58:52,375 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-31 19:58:52,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:52,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:52,375 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:52,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 19:58:52,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:58:52,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:52,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:52,578 INFO L85 PathProgramCache]: Analyzing trace with hash -146892549, now seen corresponding path program 2 times [2023-08-31 19:58:52,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:52,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505126689] [2023-08-31 19:58:52,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:52,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 19:58:52,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505126689] [2023-08-31 19:58:52,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505126689] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:52,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:52,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:58:52,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414131679] [2023-08-31 19:58:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:52,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:58:52,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:52,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:58:52,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:58:53,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 122 [2023-08-31 19:58:53,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:53,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 122 [2023-08-31 19:58:53,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:53,310 INFO L130 PetriNetUnfolder]: 321/751 cut-off events. [2023-08-31 19:58:53,311 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:58:53,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 751 events. 321/751 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3950 event pairs, 78 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 1446. Up to 302 conditions per place. [2023-08-31 19:58:53,316 INFO L137 encePairwiseOnDemand]: 100/122 looper letters, 109 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2023-08-31 19:58:53,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 154 transitions, 648 flow [2023-08-31 19:58:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:58:53,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:58:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2023-08-31 19:58:53,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6461748633879781 [2023-08-31 19:58:53,319 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 473 transitions. [2023-08-31 19:58:53,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 473 transitions. [2023-08-31 19:58:53,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:53,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 473 transitions. [2023-08-31 19:58:53,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,324 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 473 transitions. [2023-08-31 19:58:53,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 154 transitions, 648 flow [2023-08-31 19:58:53,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 154 transitions, 634 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:53,327 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2023-08-31 19:58:53,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=57, PETRI_TRANSITIONS=86} [2023-08-31 19:58:53,328 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-31 19:58:53,329 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2023-08-31 19:58:53,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:53,329 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:53,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:58:53,330 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:53,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:53,330 INFO L85 PathProgramCache]: Analyzing trace with hash 941563343, now seen corresponding path program 1 times [2023-08-31 19:58:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:53,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193455010] [2023-08-31 19:58:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:53,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:53,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:53,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193455010] [2023-08-31 19:58:53,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193455010] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:58:53,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340697150] [2023-08-31 19:58:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:53,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:58:53,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:58:53,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:58:53,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 19:58:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:53,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 19:58:53,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:58:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:53,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 19:58:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:53,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340697150] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 19:58:53,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 19:58:53,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 19:58:53,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200098242] [2023-08-31 19:58:53,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 19:58:53,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:58:53,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:58:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:58:53,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 122 [2023-08-31 19:58:53,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 420 flow. Second operand has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:53,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 122 [2023-08-31 19:58:53,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:53,778 INFO L130 PetriNetUnfolder]: 151/500 cut-off events. [2023-08-31 19:58:53,778 INFO L131 PetriNetUnfolder]: For 238/250 co-relation queries the response was YES. [2023-08-31 19:58:53,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 500 events. 151/500 cut-off events. For 238/250 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2929 event pairs, 58 based on Foata normal form. 6/485 useless extension candidates. Maximal degree in co-relation 1244. Up to 197 conditions per place. [2023-08-31 19:58:53,782 INFO L137 encePairwiseOnDemand]: 119/122 looper letters, 30 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-31 19:58:53,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 538 flow [2023-08-31 19:58:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 19:58:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 19:58:53,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 895 transitions. [2023-08-31 19:58:53,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6113387978142076 [2023-08-31 19:58:53,785 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 895 transitions. [2023-08-31 19:58:53,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 895 transitions. [2023-08-31 19:58:53,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:53,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 895 transitions. [2023-08-31 19:58:53,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.58333333333333) internal successors, (895), 12 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 122.0) internal successors, (1586), 13 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,791 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 122.0) internal successors, (1586), 13 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,791 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 895 transitions. [2023-08-31 19:58:53,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 538 flow [2023-08-31 19:58:53,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:58:53,799 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2023-08-31 19:58:53,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=74, PETRI_TRANSITIONS=92} [2023-08-31 19:58:53,800 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2023-08-31 19:58:53,801 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2023-08-31 19:58:53,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:53,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:53,801 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:53,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 19:58:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-31 19:58:54,007 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:54,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1025361329, now seen corresponding path program 2 times [2023-08-31 19:58:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557539003] [2023-08-31 19:58:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:58:54,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:54,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557539003] [2023-08-31 19:58:54,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557539003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:54,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:54,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:58:54,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126526229] [2023-08-31 19:58:54,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:54,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:58:54,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:54,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:58:54,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:58:54,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 122 [2023-08-31 19:58:54,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 92 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:54,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:54,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 122 [2023-08-31 19:58:54,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:54,716 INFO L130 PetriNetUnfolder]: 449/1027 cut-off events. [2023-08-31 19:58:54,716 INFO L131 PetriNetUnfolder]: For 568/577 co-relation queries the response was YES. [2023-08-31 19:58:54,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3113 conditions, 1027 events. 449/1027 cut-off events. For 568/577 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5658 event pairs, 126 based on Foata normal form. 23/1049 useless extension candidates. Maximal degree in co-relation 3033. Up to 644 conditions per place. [2023-08-31 19:58:54,723 INFO L137 encePairwiseOnDemand]: 105/122 looper letters, 116 selfloop transitions, 53 changer transitions 6/179 dead transitions. [2023-08-31 19:58:54,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 179 transitions, 1214 flow [2023-08-31 19:58:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:58:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:58:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 423 transitions. [2023-08-31 19:58:54,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778688524590164 [2023-08-31 19:58:54,725 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 423 transitions. [2023-08-31 19:58:54,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 423 transitions. [2023-08-31 19:58:54,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:54,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 423 transitions. [2023-08-31 19:58:54,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:54,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:54,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:54,728 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 423 transitions. [2023-08-31 19:58:54,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 179 transitions, 1214 flow [2023-08-31 19:58:54,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 179 transitions, 1166 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-31 19:58:54,735 INFO L231 Difference]: Finished difference. Result has 79 places, 143 transitions, 962 flow [2023-08-31 19:58:54,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=79, PETRI_TRANSITIONS=143} [2023-08-31 19:58:54,735 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 40 predicate places. [2023-08-31 19:58:54,735 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 143 transitions, 962 flow [2023-08-31 19:58:54,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:54,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:54,736 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:54,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:58:54,736 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:54,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1109816516, now seen corresponding path program 1 times [2023-08-31 19:58:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:54,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116028204] [2023-08-31 19:58:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:55,077 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:58:55,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116028204] [2023-08-31 19:58:55,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116028204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:55,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:55,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:58:55,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476477485] [2023-08-31 19:58:55,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:55,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:58:55,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:58:55,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:58:55,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 122 [2023-08-31 19:58:55,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 143 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:55,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:55,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 122 [2023-08-31 19:58:55,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:55,465 INFO L130 PetriNetUnfolder]: 534/1191 cut-off events. [2023-08-31 19:58:55,466 INFO L131 PetriNetUnfolder]: For 2046/2070 co-relation queries the response was YES. [2023-08-31 19:58:55,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 1191 events. 534/1191 cut-off events. For 2046/2070 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6694 event pairs, 140 based on Foata normal form. 30/1219 useless extension candidates. Maximal degree in co-relation 4577. Up to 863 conditions per place. [2023-08-31 19:58:55,475 INFO L137 encePairwiseOnDemand]: 106/122 looper letters, 148 selfloop transitions, 49 changer transitions 34/235 dead transitions. [2023-08-31 19:58:55,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 235 transitions, 1950 flow [2023-08-31 19:58:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:58:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:58:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2023-08-31 19:58:55,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.569672131147541 [2023-08-31 19:58:55,477 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2023-08-31 19:58:55,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2023-08-31 19:58:55,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:55,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2023-08-31 19:58:55,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:55,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:55,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:55,482 INFO L175 Difference]: Start difference. First operand has 79 places, 143 transitions, 962 flow. Second operand 6 states and 417 transitions. [2023-08-31 19:58:55,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 235 transitions, 1950 flow [2023-08-31 19:58:55,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 235 transitions, 1942 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-31 19:58:55,497 INFO L231 Difference]: Finished difference. Result has 88 places, 167 transitions, 1324 flow [2023-08-31 19:58:55,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1324, PETRI_PLACES=88, PETRI_TRANSITIONS=167} [2023-08-31 19:58:55,499 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2023-08-31 19:58:55,499 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 167 transitions, 1324 flow [2023-08-31 19:58:55,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:58:55,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:55,500 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:55,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:58:55,500 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:58:55,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:55,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1781283425, now seen corresponding path program 1 times [2023-08-31 19:58:55,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:55,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347552590] [2023-08-31 19:58:55,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:55,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:58:55,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:58:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:58:55,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:58:55,565 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:58:55,565 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 19:58:55,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 19:58:55,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-31 19:58:55,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-31 19:58:55,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 19:58:55,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 19:58:55,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 19:58:55,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:58:55,569 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-31 19:58:55,574 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:58:55,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:58:55,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:58:55 BasicIcfg [2023-08-31 19:58:55,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:58:55,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:58:55,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:58:55,631 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:58:55,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:58:50" (3/4) ... [2023-08-31 19:58:55,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:58:55,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:58:55,635 INFO L158 Benchmark]: Toolchain (without parser) took 6400.93ms. Allocated memory was 60.8MB in the beginning and 148.9MB in the end (delta: 88.1MB). Free memory was 27.4MB in the beginning and 68.8MB in the end (delta: -41.3MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2023-08-31 19:58:55,635 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 46.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:55,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.67ms. Allocated memory is still 60.8MB. Free memory was 27.1MB in the beginning and 38.1MB in the end (delta: -11.0MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-08-31 19:58:55,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.02ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 35.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:55,637 INFO L158 Benchmark]: Boogie Preprocessor took 29.77ms. Allocated memory is still 60.8MB. Free memory was 35.9MB in the beginning and 34.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:55,639 INFO L158 Benchmark]: RCFGBuilder took 454.38ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 34.2MB in the beginning and 48.9MB in the end (delta: -14.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-08-31 19:58:55,639 INFO L158 Benchmark]: TraceAbstraction took 5520.21ms. Allocated memory was 73.4MB in the beginning and 148.9MB in the end (delta: 75.5MB). Free memory was 48.2MB in the beginning and 68.8MB in the end (delta: -20.6MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2023-08-31 19:58:55,640 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 148.9MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:55,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 46.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.67ms. Allocated memory is still 60.8MB. Free memory was 27.1MB in the beginning and 38.1MB in the end (delta: -11.0MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.02ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 35.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.77ms. Allocated memory is still 60.8MB. Free memory was 35.9MB in the beginning and 34.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.38ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 34.2MB in the beginning and 48.9MB in the end (delta: -14.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5520.21ms. Allocated memory was 73.4MB in the beginning and 148.9MB in the end (delta: 75.5MB). Free memory was 48.2MB in the beginning and 68.8MB in the end (delta: -20.6MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 148.9MB. Free memory is still 68.8MB. 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: 1.2s, 80 PlacesBefore, 39 PlacesAfterwards, 78 TransitionsBefore, 36 TransitionsAfterwards, 1450 CoEnabledTransitionPairs, 4 FixpointIterations, 18 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 5861 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1339, independent: 1054, independent conditional: 0, independent unconditional: 1054, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 623, independent: 562, independent conditional: 0, independent unconditional: 562, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1339, independent: 492, independent conditional: 0, independent unconditional: 492, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 623, unknown conditional: 0, unknown unconditional: 623] , Statistics on independence cache: Total cache size (in pairs): 109, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, 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: [L679] 0 int data[10]; [L680] 0 pthread_mutex_t m[10]; [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) [L690] 0 pthread_t id; [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L693] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=10, id={3:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=10, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, data[4]=0, i=10, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 105 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 233 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 926 IncrementalHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 4 mSDtfsCounter, 926 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1324occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:58:55,699 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