./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.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 eab672eda1edfc97284913525627300d4c299ae27e8726a3a4858e3cefa92c8f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:12:21,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:12:21,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:12:21,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:12:21,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:12:21,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:12:21,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:12:21,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:12:21,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:12:21,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:12:21,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:12:21,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:12:21,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:12:21,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:12:21,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:12:21,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:12:21,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:12:21,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:12:21,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:12:21,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:12:21,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:12:21,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:12:21,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:12:21,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:12:21,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:12:21,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:12:21,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:12:21,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:12:21,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:12:21,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:12:21,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:12:21,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:12:21,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:12:21,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:12:21,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:12:21,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:12:21,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:12:21,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:12:21,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:12:21,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:12:21,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:12:21,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:12:21,679 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:12:21,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:12:21,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:12:21,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:12:21,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:12:21,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:12:21,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:12:21,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:12:21,682 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:12:21,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:12:21,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:12:21,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:12:21,684 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:12:21,684 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:12:21,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:12:21,684 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:12:21,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:12:21,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:12:21,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:12:21,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:12:21,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:12:21,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:12:21,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:12:21,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:12:21,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:12:21,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:12:21,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:12:21,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:12:21,686 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:12:21,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:12:21,687 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:12:21,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab672eda1edfc97284913525627300d4c299ae27e8726a3a4858e3cefa92c8f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:12:21,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:12:21,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:12:21,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:12:21,933 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:12:21,933 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:12:21,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-29 18:12:22,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:12:23,037 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:12:23,037 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-29 18:12:23,045 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58fea0f7f/f3b9a4cb12f448869b01e75d604d7242/FLAGf14820551 [2023-08-29 18:12:23,055 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58fea0f7f/f3b9a4cb12f448869b01e75d604d7242 [2023-08-29 18:12:23,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:12:23,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:12:23,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:12:23,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:12:23,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:12:23,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13be0326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23, skipping insertion in model container [2023-08-29 18:12:23,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:12:23,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:12:23,173 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2023-08-29 18:12:23,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:12:23,248 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:12:23,259 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142] [2023-08-29 18:12:23,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:12:23,333 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:12:23,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23 WrapperNode [2023-08-29 18:12:23,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:12:23,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:12:23,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:12:23,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:12:23,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,380 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2023-08-29 18:12:23,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:12:23,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:12:23,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:12:23,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:12:23,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:12:23,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:12:23,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:12:23,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:12:23,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (1/1) ... [2023-08-29 18:12:23,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:12:23,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:12:23,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:12:23,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:12:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:12:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:12:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:12:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:12:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:12:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:12:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:12:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:12:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:12:23,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:12:23,471 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:12:23,543 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:12:23,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:12:23,663 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:12:23,667 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:12:23,668 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 18:12:23,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:12:23 BoogieIcfgContainer [2023-08-29 18:12:23,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:12:23,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:12:23,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:12:23,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:12:23,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:12:23" (1/3) ... [2023-08-29 18:12:23,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35afda9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:12:23, skipping insertion in model container [2023-08-29 18:12:23,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:12:23" (2/3) ... [2023-08-29 18:12:23,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35afda9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:12:23, skipping insertion in model container [2023-08-29 18:12:23,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:12:23" (3/3) ... [2023-08-29 18:12:23,674 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i [2023-08-29 18:12:23,679 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:12:23,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:12:23,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 18:12:23,685 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:12:23,728 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 18:12:23,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 159 flow [2023-08-29 18:12:23,771 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2023-08-29 18:12:23,771 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:23,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 1/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-29 18:12:23,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 77 transitions, 159 flow [2023-08-29 18:12:23,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 76 transitions, 155 flow [2023-08-29 18:12:23,778 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:12:23,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 76 transitions, 155 flow [2023-08-29 18:12:23,786 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 76 transitions, 155 flow [2023-08-29 18:12:23,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 76 transitions, 155 flow [2023-08-29 18:12:23,800 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2023-08-29 18:12:23,802 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:23,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 1/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-29 18:12:23,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 960 [2023-08-29 18:12:25,471 INFO L134 LiptonReduction]: Checked pairs total: 3602 [2023-08-29 18:12:25,471 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-29 18:12:25,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:12:25,486 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;@694af69f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:12:25,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-29 18:12:25,489 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-29 18:12:25,490 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:25,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:25,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:25,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:12:25,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash -279390250, now seen corresponding path program 1 times [2023-08-29 18:12:25,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:25,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077913724] [2023-08-29 18:12:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:25,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:12:25,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:25,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077913724] [2023-08-29 18:12:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077913724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:25,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:25,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:12:25,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129940983] [2023-08-29 18:12:25,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:25,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:25,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:25,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:25,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 131 [2023-08-29 18:12:25,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:25,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 131 [2023-08-29 18:12:25,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:25,749 INFO L130 PetriNetUnfolder]: 55/169 cut-off events. [2023-08-29 18:12:25,749 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:25,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 169 events. 55/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 632 event pairs, 40 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 293. Up to 112 conditions per place. [2023-08-29 18:12:25,751 INFO L137 encePairwiseOnDemand]: 125/131 looper letters, 20 selfloop transitions, 4 changer transitions 3/35 dead transitions. [2023-08-29 18:12:25,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 127 flow [2023-08-29 18:12:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-08-29 18:12:25,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5877862595419847 [2023-08-29 18:12:25,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-08-29 18:12:25,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-08-29 18:12:25,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:25,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-08-29 18:12:25,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,774 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 57 flow. Second operand 3 states and 231 transitions. [2023-08-29 18:12:25,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 127 flow [2023-08-29 18:12:25,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:12:25,777 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 78 flow [2023-08-29 18:12:25,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-08-29 18:12:25,780 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-08-29 18:12:25,780 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 78 flow [2023-08-29 18:12:25,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:25,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:25,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:12:25,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:12:25,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:25,782 INFO L85 PathProgramCache]: Analyzing trace with hash -257400668, now seen corresponding path program 1 times [2023-08-29 18:12:25,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:25,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720608359] [2023-08-29 18:12:25,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:25,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:12:25,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:25,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720608359] [2023-08-29 18:12:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720608359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:25,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:12:25,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404719041] [2023-08-29 18:12:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:25,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:25,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:25,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 131 [2023-08-29 18:12:25,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:25,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 131 [2023-08-29 18:12:25,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:25,900 INFO L130 PetriNetUnfolder]: 54/166 cut-off events. [2023-08-29 18:12:25,903 INFO L131 PetriNetUnfolder]: For 44/49 co-relation queries the response was YES. [2023-08-29 18:12:25,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 166 events. 54/166 cut-off events. For 44/49 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 612 event pairs, 40 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 344. Up to 117 conditions per place. [2023-08-29 18:12:25,904 INFO L137 encePairwiseOnDemand]: 127/131 looper letters, 22 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-29 18:12:25,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 147 flow [2023-08-29 18:12:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2023-08-29 18:12:25,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648854961832062 [2023-08-29 18:12:25,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 222 transitions. [2023-08-29 18:12:25,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 222 transitions. [2023-08-29 18:12:25,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:25,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 222 transitions. [2023-08-29 18:12:25,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,912 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 78 flow. Second operand 3 states and 222 transitions. [2023-08-29 18:12:25,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 147 flow [2023-08-29 18:12:25,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 34 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:12:25,913 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 98 flow [2023-08-29 18:12:25,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-08-29 18:12:25,914 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2023-08-29 18:12:25,914 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 98 flow [2023-08-29 18:12:25,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:25,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:25,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:25,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:12:25,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:12:25,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:25,918 INFO L85 PathProgramCache]: Analyzing trace with hash 824027404, now seen corresponding path program 1 times [2023-08-29 18:12:25,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:25,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614847787] [2023-08-29 18:12:25,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:25,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:26,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:12:26,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:26,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614847787] [2023-08-29 18:12:26,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614847787] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:26,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:26,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:12:26,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364759882] [2023-08-29 18:12:26,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:26,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:26,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:26,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:26,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:26,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 131 [2023-08-29 18:12:26,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:26,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 131 [2023-08-29 18:12:26,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:26,103 INFO L130 PetriNetUnfolder]: 53/158 cut-off events. [2023-08-29 18:12:26,104 INFO L131 PetriNetUnfolder]: For 61/65 co-relation queries the response was YES. [2023-08-29 18:12:26,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 158 events. 53/158 cut-off events. For 61/65 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 549 event pairs, 18 based on Foata normal form. 8/163 useless extension candidates. Maximal degree in co-relation 359. Up to 85 conditions per place. [2023-08-29 18:12:26,107 INFO L137 encePairwiseOnDemand]: 124/131 looper letters, 23 selfloop transitions, 6 changer transitions 8/42 dead transitions. [2023-08-29 18:12:26,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 200 flow [2023-08-29 18:12:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:26,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2023-08-29 18:12:26,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5954198473282443 [2023-08-29 18:12:26,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2023-08-29 18:12:26,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2023-08-29 18:12:26,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:26,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2023-08-29 18:12:26,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,113 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 98 flow. Second operand 3 states and 234 transitions. [2023-08-29 18:12:26,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 200 flow [2023-08-29 18:12:26,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 180 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-29 18:12:26,116 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 94 flow [2023-08-29 18:12:26,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2023-08-29 18:12:26,117 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-08-29 18:12:26,117 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 94 flow [2023-08-29 18:12:26,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:26,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:26,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:12:26,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:12:26,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1279936758, now seen corresponding path program 1 times [2023-08-29 18:12:26,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:26,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756827640] [2023-08-29 18:12:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:26,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:12:26,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:26,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756827640] [2023-08-29 18:12:26,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756827640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:26,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:26,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:12:26,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497830783] [2023-08-29 18:12:26,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:26,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:26,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:26,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:26,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-29 18:12:26,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:26,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-29 18:12:26,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:26,200 INFO L130 PetriNetUnfolder]: 41/137 cut-off events. [2023-08-29 18:12:26,201 INFO L131 PetriNetUnfolder]: For 46/53 co-relation queries the response was YES. [2023-08-29 18:12:26,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 137 events. 41/137 cut-off events. For 46/53 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 475 event pairs, 13 based on Foata normal form. 4/137 useless extension candidates. Maximal degree in co-relation 345. Up to 71 conditions per place. [2023-08-29 18:12:26,203 INFO L137 encePairwiseOnDemand]: 127/131 looper letters, 19 selfloop transitions, 3 changer transitions 9/37 dead transitions. [2023-08-29 18:12:26,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 184 flow [2023-08-29 18:12:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-08-29 18:12:26,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5979643765903307 [2023-08-29 18:12:26,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-08-29 18:12:26,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-08-29 18:12:26,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:26,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-08-29 18:12:26,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,210 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 94 flow. Second operand 3 states and 235 transitions. [2023-08-29 18:12:26,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 184 flow [2023-08-29 18:12:26,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 18:12:26,212 INFO L231 Difference]: Finished difference. Result has 35 places, 26 transitions, 96 flow [2023-08-29 18:12:26,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2023-08-29 18:12:26,214 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-29 18:12:26,214 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 96 flow [2023-08-29 18:12:26,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:26,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:26,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:12:26,215 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-29 18:12:26,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash -663192358, now seen corresponding path program 1 times [2023-08-29 18:12:26,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:26,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659216541] [2023-08-29 18:12:26,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:26,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:12:26,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:26,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659216541] [2023-08-29 18:12:26,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659216541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:26,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:26,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:12:26,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051532837] [2023-08-29 18:12:26,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:26,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:26,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:26,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 131 [2023-08-29 18:12:26,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:26,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 131 [2023-08-29 18:12:26,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:26,345 INFO L130 PetriNetUnfolder]: 5/53 cut-off events. [2023-08-29 18:12:26,346 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-29 18:12:26,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 53 events. 5/53 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 2 based on Foata normal form. 12/65 useless extension candidates. Maximal degree in co-relation 134. Up to 31 conditions per place. [2023-08-29 18:12:26,346 INFO L137 encePairwiseOnDemand]: 125/131 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-29 18:12:26,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 124 flow [2023-08-29 18:12:26,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:26,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-08-29 18:12:26,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5572519083969466 [2023-08-29 18:12:26,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-08-29 18:12:26,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-08-29 18:12:26,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:26,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-08-29 18:12:26,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,350 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 96 flow. Second operand 3 states and 219 transitions. [2023-08-29 18:12:26,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 124 flow [2023-08-29 18:12:26,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 101 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-29 18:12:26,351 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-29 18:12:26,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-29 18:12:26,353 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2023-08-29 18:12:26,354 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-29 18:12:26,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:12:26,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-08-29 18:12:26,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-29 18:12:26,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-29 18:12:26,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-29 18:12:26,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-29 18:12:26,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:12:26,358 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 18:12:26,362 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:12:26,362 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:12:26,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:12:26 BasicIcfg [2023-08-29 18:12:26,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:12:26,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:12:26,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:12:26,370 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:12:26,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:12:23" (3/4) ... [2023-08-29 18:12:26,372 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:12:26,376 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 18:12:26,379 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-29 18:12:26,379 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:12:26,379 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:12:26,380 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:12:26,408 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:12:26,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:12:26,409 INFO L158 Benchmark]: Toolchain (without parser) took 3350.36ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 62.4MB in the beginning and 40.9MB in the end (delta: 21.5MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-08-29 18:12:26,409 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:12:26,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.30ms. Allocated memory is still 86.0MB. Free memory was 62.2MB in the beginning and 43.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 18:12:26,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.14ms. Allocated memory is still 86.0MB. Free memory was 43.2MB in the beginning and 41.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:12:26,409 INFO L158 Benchmark]: Boogie Preprocessor took 38.89ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 65.4MB in the end (delta: -24.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-08-29 18:12:26,410 INFO L158 Benchmark]: RCFGBuilder took 249.19ms. Allocated memory is still 86.0MB. Free memory was 65.4MB in the beginning and 52.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 18:12:26,410 INFO L158 Benchmark]: TraceAbstraction took 2699.10ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 44.0MB in the end (delta: 7.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-08-29 18:12:26,410 INFO L158 Benchmark]: Witness Printer took 38.72ms. Allocated memory is still 104.9MB. Free memory was 44.0MB in the beginning and 40.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:12:26,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.30ms. Allocated memory is still 86.0MB. Free memory was 62.2MB in the beginning and 43.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.14ms. Allocated memory is still 86.0MB. Free memory was 43.2MB in the beginning and 41.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.89ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 65.4MB in the end (delta: -24.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 249.19ms. Allocated memory is still 86.0MB. Free memory was 65.4MB in the beginning and 52.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2699.10ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 44.0MB in the end (delta: 7.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * Witness Printer took 38.72ms. Allocated memory is still 104.9MB. Free memory was 44.0MB in the beginning and 40.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 79 PlacesBefore, 30 PlacesAfterwards, 76 TransitionsBefore, 27 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 3602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1618, independent: 1350, independent conditional: 0, independent unconditional: 1350, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 489, independent: 455, independent conditional: 0, independent unconditional: 455, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1618, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 234, dependent conditional: 0, dependent unconditional: 234, unknown: 489, unknown conditional: 0, unknown unconditional: 489] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 5 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: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 272 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 11 mSDtfsCounter, 272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:12:26,426 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 Result: TRUE