./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.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/04-mutex_02-simple_nr.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 d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 --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 19:56:16,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:56:16,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:56:16,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:56:16,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:56:16,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:56:16,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:56:16,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:56:16,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:56:16,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:56:16,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:56:16,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:56:16,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:56:16,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:56:16,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:56:16,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:56:16,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:56:16,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:56:16,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:56:16,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:56:16,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:56:16,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:56:16,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:56:16,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:56:16,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:56:16,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:56:16,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:56:16,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:56:16,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:56:16,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:56:16,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:56:16,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:56:16,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:56:16,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:56:16,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:56:16,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:56:16,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:56:16,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:56:16,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:56:16,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:56:16,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:56:16,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:56:16,771 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:56:16,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:56:16,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:56:16,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:56:16,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:56:16,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:56:16,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:56:16,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:56:16,773 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:56:16,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:56:16,774 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:56:16,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:56:16,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:56:16,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:56:16,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:56:16,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:56:16,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:56:16,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:56:16,775 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:56:16,776 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:56:16,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:56:16,776 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:56:16,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:56:16,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:56:16,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:56:16,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:56:16,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:16,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:56:16,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:56:16,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:56:16,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:56:16,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:56:16,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:56:16,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:56:16,779 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:56:16,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:56:16,779 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:56:16,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:56:17,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:56:17,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:56:17,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:56:17,121 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:56:17,121 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:56:17,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-08-31 19:56:18,160 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:56:18,434 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:56:18,435 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-08-31 19:56:18,451 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a518c41/a40bd2de6edf438d9d682bc83de5f1eb/FLAG363df313e [2023-08-31 19:56:18,464 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a518c41/a40bd2de6edf438d9d682bc83de5f1eb [2023-08-31 19:56:18,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:56:18,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:56:18,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:18,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:56:18,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:56:18,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:18" (1/1) ... [2023-08-31 19:56:18,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466d8a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:18, skipping insertion in model container [2023-08-31 19:56:18,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:56:18" (1/1) ... [2023-08-31 19:56:18,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:56:18,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:56:18,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:18,866 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:56:18,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:19,010 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:56:19,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19 WrapperNode [2023-08-31 19:56:19,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:19,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:19,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:56:19,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:56:19,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,072 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-08-31 19:56:19,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:19,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:56:19,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:56:19,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:56:19,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:56:19,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:56:19,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:56:19,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:56:19,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (1/1) ... [2023-08-31 19:56:19,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:19,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:56:19,153 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 19:56:19,175 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 19:56:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:56:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:56:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:56:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:56:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:56:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:56:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:56:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:56:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:56:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:56:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:56:19,190 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 19:56:19,301 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:56:19,302 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:56:19,488 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:56:19,494 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:56:19,494 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:56:19,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:19 BoogieIcfgContainer [2023-08-31 19:56:19,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:56:19,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:56:19,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:56:19,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:56:19,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:56:18" (1/3) ... [2023-08-31 19:56:19,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a864bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:19, skipping insertion in model container [2023-08-31 19:56:19,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:19" (2/3) ... [2023-08-31 19:56:19,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a864bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:19, skipping insertion in model container [2023-08-31 19:56:19,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:19" (3/3) ... [2023-08-31 19:56:19,502 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2023-08-31 19:56:19,509 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:56:19,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:56:19,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-31 19:56:19,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:56:19,556 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:56:19,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 150 flow [2023-08-31 19:56:19,653 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2023-08-31 19:56:19,653 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:56:19,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-31 19:56:19,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 150 flow [2023-08-31 19:56:19,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2023-08-31 19:56:19,665 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:56:19,683 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-31 19:56:19,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 129 flow [2023-08-31 19:56:19,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 129 flow [2023-08-31 19:56:19,703 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2023-08-31 19:56:19,704 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:19,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 0/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:56:19,705 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-31 19:56:21,353 INFO L134 LiptonReduction]: Checked pairs total: 2495 [2023-08-31 19:56:21,353 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-31 19:56:21,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:56:21,370 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;@8f9a707, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:56:21,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-31 19:56:21,380 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-31 19:56:21,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:21,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:21,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:56:21,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:21,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:21,388 INFO L85 PathProgramCache]: Analyzing trace with hash 220981507, now seen corresponding path program 1 times [2023-08-31 19:56:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444957755] [2023-08-31 19:56:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:21,586 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 19:56:21,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:21,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444957755] [2023-08-31 19:56:21,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444957755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:21,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095716853] [2023-08-31 19:56:21,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:21,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:21,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:21,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:21,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 115 [2023-08-31 19:56:21,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 19:56:21,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:21,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 115 [2023-08-31 19:56:21,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:21,707 INFO L130 PetriNetUnfolder]: 48/137 cut-off events. [2023-08-31 19:56:21,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:21,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 137 events. 48/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 544 event pairs, 22 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 249. Up to 71 conditions per place. [2023-08-31 19:56:21,711 INFO L137 encePairwiseOnDemand]: 106/115 looper letters, 22 selfloop transitions, 6 changer transitions 0/32 dead transitions. [2023-08-31 19:56:21,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 32 transitions, 123 flow [2023-08-31 19:56:21,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-08-31 19:56:21,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6231884057971014 [2023-08-31 19:56:21,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-08-31 19:56:21,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-08-31 19:56:21,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:21,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-08-31 19:56:21,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 19:56:21,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:21,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:21,739 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 215 transitions. [2023-08-31 19:56:21,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 32 transitions, 123 flow [2023-08-31 19:56:21,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:21,743 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 94 flow [2023-08-31 19:56:21,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-08-31 19:56:21,748 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-31 19:56:21,748 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 94 flow [2023-08-31 19:56:21,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 19:56:21,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:21,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:21,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:56:21,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:21,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash -467080420, now seen corresponding path program 1 times [2023-08-31 19:56:21,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:21,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844948802] [2023-08-31 19:56:21,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:21,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:21,788 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 19:56:21,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:21,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844948802] [2023-08-31 19:56:21,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844948802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:21,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:21,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:21,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351982628] [2023-08-31 19:56:21,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:21,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:21,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:21,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:21,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:21,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 115 [2023-08-31 19:56:21,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 19:56:21,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:21,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 115 [2023-08-31 19:56:21,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:21,841 INFO L130 PetriNetUnfolder]: 41/126 cut-off events. [2023-08-31 19:56:21,842 INFO L131 PetriNetUnfolder]: For 78/83 co-relation queries the response was YES. [2023-08-31 19:56:21,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 126 events. 41/126 cut-off events. For 78/83 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 495 event pairs, 21 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 300. Up to 83 conditions per place. [2023-08-31 19:56:21,843 INFO L137 encePairwiseOnDemand]: 110/115 looper letters, 16 selfloop transitions, 6 changer transitions 2/33 dead transitions. [2023-08-31 19:56:21,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 33 transitions, 166 flow [2023-08-31 19:56:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-08-31 19:56:21,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5797101449275363 [2023-08-31 19:56:21,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-08-31 19:56:21,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-08-31 19:56:21,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:21,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-08-31 19:56:21,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 19:56:21,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:21,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:21,849 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 94 flow. Second operand 3 states and 200 transitions. [2023-08-31 19:56:21,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 33 transitions, 166 flow [2023-08-31 19:56:21,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:21,851 INFO L231 Difference]: Finished difference. Result has 28 places, 30 transitions, 124 flow [2023-08-31 19:56:21,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=28, PETRI_TRANSITIONS=30} [2023-08-31 19:56:21,851 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-31 19:56:21,852 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 30 transitions, 124 flow [2023-08-31 19:56:21,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 19:56:21,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:21,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:21,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:56:21,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:21,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:21,854 INFO L85 PathProgramCache]: Analyzing trace with hash -924612167, now seen corresponding path program 1 times [2023-08-31 19:56:21,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:21,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160108434] [2023-08-31 19:56:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:21,898 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 19:56:21,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:21,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160108434] [2023-08-31 19:56:21,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160108434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:21,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:21,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:21,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341235706] [2023-08-31 19:56:21,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:21,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:21,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:21,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:21,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:21,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 115 [2023-08-31 19:56:21,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 19:56:21,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:21,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 115 [2023-08-31 19:56:21,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:21,948 INFO L130 PetriNetUnfolder]: 45/132 cut-off events. [2023-08-31 19:56:21,948 INFO L131 PetriNetUnfolder]: For 139/148 co-relation queries the response was YES. [2023-08-31 19:56:21,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 132 events. 45/132 cut-off events. For 139/148 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 518 event pairs, 19 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 346. Up to 86 conditions per place. [2023-08-31 19:56:21,949 INFO L137 encePairwiseOnDemand]: 110/115 looper letters, 15 selfloop transitions, 7 changer transitions 6/37 dead transitions. [2023-08-31 19:56:21,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 208 flow [2023-08-31 19:56:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-08-31 19:56:21,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5884057971014492 [2023-08-31 19:56:21,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-08-31 19:56:21,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-08-31 19:56:21,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:21,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-08-31 19:56:21,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:21,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:21,954 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:21,954 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 124 flow. Second operand 3 states and 203 transitions. [2023-08-31 19:56:21,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 208 flow [2023-08-31 19:56:21,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:21,957 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 145 flow [2023-08-31 19:56:21,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2023-08-31 19:56:21,958 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-31 19:56:21,958 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 145 flow [2023-08-31 19:56:21,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 19:56:21,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:21,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:21,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:56:21,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-31 19:56:21,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:21,959 INFO L85 PathProgramCache]: Analyzing trace with hash -120284581, now seen corresponding path program 1 times [2023-08-31 19:56:21,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:21,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842839103] [2023-08-31 19:56:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:22,048 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 19:56:22,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:22,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842839103] [2023-08-31 19:56:22,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842839103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:22,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:22,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:56:22,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522179920] [2023-08-31 19:56:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:22,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:22,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:22,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:22,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 115 [2023-08-31 19:56:22,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 30 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 19:56:22,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:22,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 115 [2023-08-31 19:56:22,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:22,086 INFO L130 PetriNetUnfolder]: 1/30 cut-off events. [2023-08-31 19:56:22,086 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-31 19:56:22,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 30 events. 1/30 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs, 1 based on Foata normal form. 7/37 useless extension candidates. Maximal degree in co-relation 76. Up to 14 conditions per place. [2023-08-31 19:56:22,087 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2023-08-31 19:56:22,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 86 flow [2023-08-31 19:56:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2023-08-31 19:56:22,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2023-08-31 19:56:22,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2023-08-31 19:56:22,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2023-08-31 19:56:22,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:22,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2023-08-31 19:56:22,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-08-31 19:56:22,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:22,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 19:56:22,092 INFO L175 Difference]: Start difference. First operand has 30 places, 30 transitions, 145 flow. Second operand 3 states and 205 transitions. [2023-08-31 19:56:22,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 86 flow [2023-08-31 19:56:22,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 16 transitions, 56 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-31 19:56:22,093 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2023-08-31 19:56:22,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2023-08-31 19:56:22,094 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -4 predicate places. [2023-08-31 19:56:22,094 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2023-08-31 19:56:22,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 19:56:22,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-31 19:56:22,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-31 19:56:22,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-31 19:56:22,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-31 19:56:22,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-31 19:56:22,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-31 19:56:22,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-31 19:56:22,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-31 19:56:22,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:56:22,099 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 19:56:22,103 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:56:22,103 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:56:22,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:56:22 BasicIcfg [2023-08-31 19:56:22,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:56:22,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:56:22,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:56:22,107 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:56:22,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:19" (3/4) ... [2023-08-31 19:56:22,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:56:22,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 19:56:22,118 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-31 19:56:22,118 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 19:56:22,118 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 19:56:22,151 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:56:22,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:56:22,154 INFO L158 Benchmark]: Toolchain (without parser) took 3686.34ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.6MB in the beginning and 39.1MB in the end (delta: 14.6MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-08-31 19:56:22,156 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:22,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.27ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 45.9MB in the end (delta: 7.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-08-31 19:56:22,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.63ms. Allocated memory is still 77.6MB. Free memory was 45.9MB in the beginning and 43.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:56:22,157 INFO L158 Benchmark]: Boogie Preprocessor took 47.70ms. Allocated memory is still 77.6MB. Free memory was 43.4MB in the beginning and 42.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:22,157 INFO L158 Benchmark]: RCFGBuilder took 373.98ms. Allocated memory is still 77.6MB. Free memory was 42.0MB in the beginning and 53.8MB in the end (delta: -11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 19:56:22,157 INFO L158 Benchmark]: TraceAbstraction took 2609.29ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.0MB in the beginning and 42.4MB in the end (delta: 10.6MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-08-31 19:56:22,158 INFO L158 Benchmark]: Witness Printer took 46.38ms. Allocated memory is still 94.4MB. Free memory was 41.9MB in the beginning and 39.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:56:22,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.27ms. Allocated memory is still 77.6MB. Free memory was 53.4MB in the beginning and 45.9MB in the end (delta: 7.5MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.63ms. Allocated memory is still 77.6MB. Free memory was 45.9MB in the beginning and 43.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.70ms. Allocated memory is still 77.6MB. Free memory was 43.4MB in the beginning and 42.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 373.98ms. Allocated memory is still 77.6MB. Free memory was 42.0MB in the beginning and 53.8MB in the end (delta: -11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2609.29ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.0MB in the beginning and 42.4MB in the end (delta: 10.6MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 46.38ms. Allocated memory is still 94.4MB. Free memory was 41.9MB in the beginning and 39.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 67 PlacesBefore, 25 PlacesAfterwards, 63 TransitionsBefore, 21 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 2495 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 994, independent: 781, independent conditional: 0, independent unconditional: 781, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 326, independent: 297, independent conditional: 0, independent unconditional: 297, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 994, independent: 484, independent conditional: 0, independent unconditional: 484, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 326, unknown conditional: 0, unknown unconditional: 326] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 930]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 930]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: 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, 89 locations, 8 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: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 4 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 19:56:22,183 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