./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/03-practical_08-nonterm1.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/03-practical_08-nonterm1.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 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 --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 17:27:55,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:27:55,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:27:55,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:27:55,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:27:55,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:27:55,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:27:55,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:27:55,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:27:55,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:27:55,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:27:55,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:27:55,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:27:55,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:27:55,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:27:55,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:27:55,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:27:55,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:27:55,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:27:55,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:27:55,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:27:55,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:27:55,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:27:55,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:27:55,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:27:55,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:27:55,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:27:55,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:27:55,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:27:55,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:27:55,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:27:55,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:27:55,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:27:55,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:27:55,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:27:55,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:27:55,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:27:55,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:27:55,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:27:55,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:27:55,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:27:55,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:27:55,560 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:27:55,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:27:55,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:27:55,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:27:55,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:27:55,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:27:55,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:27:55,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:27:55,564 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:27:55,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:27:55,565 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:27:55,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:27:55,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:27:55,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:27:55,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:27:55,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:27:55,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:27:55,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:27:55,566 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:27:55,566 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:27:55,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:27:55,567 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:27:55,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:27:55,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:27:55,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:27:55,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:27:55,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:27:55,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:27:55,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:27:55,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:27:55,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:27:55,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:27:55,569 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:27:55,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:27:55,569 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:27:55,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:27:55,569 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:27:55,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:27:55,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:27:55,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:27:55,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:27:55,906 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:27:55,906 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:27:55,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_08-nonterm1.i [2023-08-29 17:27:56,929 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:27:57,245 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:27:57,246 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_08-nonterm1.i [2023-08-29 17:27:57,263 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c519473/9cd87d3061c644f9b77d3482dbbba97a/FLAG6a2ec79ec [2023-08-29 17:27:57,285 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c519473/9cd87d3061c644f9b77d3482dbbba97a [2023-08-29 17:27:57,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:27:57,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:27:57,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:27:57,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:27:57,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:27:57,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d6df7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57, skipping insertion in model container [2023-08-29 17:27:57,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:27:57,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:27:57,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:27:57,748 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:27:57,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:27:57,856 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:27:57,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57 WrapperNode [2023-08-29 17:27:57,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:27:57,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:27:57,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:27:57,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:27:57,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,895 INFO L138 Inliner]: procedures = 264, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2023-08-29 17:27:57,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:27:57,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:27:57,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:27:57,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:27:57,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:27:57,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:27:57,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:27:57,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:27:57,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (1/1) ... [2023-08-29 17:27:57,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:27:57,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:27:57,952 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 17:27:57,954 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 17:27:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:27:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:27:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:27:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:27:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:27:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:27:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:27:57,979 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:27:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:27:57,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:27:57,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:27:57,982 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 17:27:58,102 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:27:58,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:27:58,349 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:27:58,357 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:27:58,357 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 17:27:58,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:58 BoogieIcfgContainer [2023-08-29 17:27:58,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:27:58,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:27:58,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:27:58,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:27:58,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:27:57" (1/3) ... [2023-08-29 17:27:58,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3d88eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:27:58, skipping insertion in model container [2023-08-29 17:27:58,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:57" (2/3) ... [2023-08-29 17:27:58,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3d88eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:27:58, skipping insertion in model container [2023-08-29 17:27:58,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:58" (3/3) ... [2023-08-29 17:27:58,366 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_08-nonterm1.i [2023-08-29 17:27:58,372 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:27:58,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:27:58,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 17:27:58,381 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:27:58,462 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 17:27:58,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 96 transitions, 200 flow [2023-08-29 17:27:58,566 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2023-08-29 17:27:58,566 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 17:27:58,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 2/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2023-08-29 17:27:58,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 96 transitions, 200 flow [2023-08-29 17:27:58,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 89 transitions, 184 flow [2023-08-29 17:27:58,580 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:27:58,595 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 89 transitions, 184 flow [2023-08-29 17:27:58,602 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 89 transitions, 184 flow [2023-08-29 17:27:58,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 184 flow [2023-08-29 17:27:58,639 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2023-08-29 17:27:58,639 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 17:27:58,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 89 events. 2/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2023-08-29 17:27:58,642 INFO L119 LiptonReduction]: Number of co-enabled transitions 1596 [2023-08-29 17:28:00,659 INFO L134 LiptonReduction]: Checked pairs total: 6041 [2023-08-29 17:28:00,660 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-29 17:28:00,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:28:00,677 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;@5d52aaaf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:28:00,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-29 17:28:00,679 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 17:28:00,680 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:00,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:00,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:28:00,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:28:00,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash 313090812, now seen corresponding path program 1 times [2023-08-29 17:28:00,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:00,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628614961] [2023-08-29 17:28:00,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:00,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:00,908 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 17:28:00,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:00,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628614961] [2023-08-29 17:28:00,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628614961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:00,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:00,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:00,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860953171] [2023-08-29 17:28:00,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:00,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:00,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:00,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 155 [2023-08-29 17:28:00,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:00,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:00,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 155 [2023-08-29 17:28:00,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:01,095 INFO L130 PetriNetUnfolder]: 93/256 cut-off events. [2023-08-29 17:28:01,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:01,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 256 events. 93/256 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1107 event pairs, 33 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 461. Up to 114 conditions per place. [2023-08-29 17:28:01,098 INFO L137 encePairwiseOnDemand]: 141/155 looper letters, 32 selfloop transitions, 9 changer transitions 0/48 dead transitions. [2023-08-29 17:28:01,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 48 transitions, 181 flow [2023-08-29 17:28:01,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:01,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2023-08-29 17:28:01,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2023-08-29 17:28:01,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2023-08-29 17:28:01,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2023-08-29 17:28:01,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:01,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2023-08-29 17:28:01,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 17:28:01,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,127 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 74 flow. Second operand 3 states and 279 transitions. [2023-08-29 17:28:01,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 48 transitions, 181 flow [2023-08-29 17:28:01,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:01,131 INFO L231 Difference]: Finished difference. Result has 36 places, 39 transitions, 140 flow [2023-08-29 17:28:01,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2023-08-29 17:28:01,135 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-08-29 17:28:01,136 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 39 transitions, 140 flow [2023-08-29 17:28:01,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:01,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:01,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:01,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:28:01,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:28:01,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1380350035, now seen corresponding path program 1 times [2023-08-29 17:28:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:01,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173130858] [2023-08-29 17:28:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:01,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:01,177 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 17:28:01,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:01,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173130858] [2023-08-29 17:28:01,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173130858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:01,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:01,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869168914] [2023-08-29 17:28:01,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:01,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:01,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:01,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:01,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 155 [2023-08-29 17:28:01,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 39 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 17:28:01,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:01,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 155 [2023-08-29 17:28:01,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:01,255 INFO L130 PetriNetUnfolder]: 74/227 cut-off events. [2023-08-29 17:28:01,255 INFO L131 PetriNetUnfolder]: For 118/125 co-relation queries the response was YES. [2023-08-29 17:28:01,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 227 events. 74/227 cut-off events. For 118/125 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1001 event pairs, 35 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 532. Up to 146 conditions per place. [2023-08-29 17:28:01,258 INFO L137 encePairwiseOnDemand]: 150/155 looper letters, 24 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2023-08-29 17:28:01,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 222 flow [2023-08-29 17:28:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:01,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:01,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-29 17:28:01,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741935483870968 [2023-08-29 17:28:01,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-29 17:28:01,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-29 17:28:01,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:01,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-29 17:28:01,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 17:28:01,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,265 INFO L175 Difference]: Start difference. First operand has 36 places, 39 transitions, 140 flow. Second operand 3 states and 267 transitions. [2023-08-29 17:28:01,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 222 flow [2023-08-29 17:28:01,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:01,267 INFO L231 Difference]: Finished difference. Result has 37 places, 43 transitions, 164 flow [2023-08-29 17:28:01,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=37, PETRI_TRANSITIONS=43} [2023-08-29 17:28:01,268 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-08-29 17:28:01,268 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 43 transitions, 164 flow [2023-08-29 17:28:01,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 17:28:01,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:01,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:01,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:28:01,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:28:01,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:01,270 INFO L85 PathProgramCache]: Analyzing trace with hash -617996111, now seen corresponding path program 1 times [2023-08-29 17:28:01,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:01,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94271101] [2023-08-29 17:28:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:01,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:01,303 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 17:28:01,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94271101] [2023-08-29 17:28:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94271101] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:01,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:01,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:01,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266685813] [2023-08-29 17:28:01,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:01,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:01,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:01,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:01,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 155 [2023-08-29 17:28:01,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 43 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 17:28:01,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:01,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 155 [2023-08-29 17:28:01,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:01,403 INFO L130 PetriNetUnfolder]: 118/306 cut-off events. [2023-08-29 17:28:01,403 INFO L131 PetriNetUnfolder]: For 189/201 co-relation queries the response was YES. [2023-08-29 17:28:01,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 306 events. 118/306 cut-off events. For 189/201 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1314 event pairs, 32 based on Foata normal form. 3/286 useless extension candidates. Maximal degree in co-relation 736. Up to 174 conditions per place. [2023-08-29 17:28:01,406 INFO L137 encePairwiseOnDemand]: 147/155 looper letters, 31 selfloop transitions, 12 changer transitions 2/59 dead transitions. [2023-08-29 17:28:01,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 59 transitions, 309 flow [2023-08-29 17:28:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-08-29 17:28:01,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5870967741935483 [2023-08-29 17:28:01,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-08-29 17:28:01,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-08-29 17:28:01,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:01,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-08-29 17:28:01,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 17:28:01,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,412 INFO L175 Difference]: Start difference. First operand has 37 places, 43 transitions, 164 flow. Second operand 3 states and 273 transitions. [2023-08-29 17:28:01,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 59 transitions, 309 flow [2023-08-29 17:28:01,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:01,415 INFO L231 Difference]: Finished difference. Result has 40 places, 51 transitions, 256 flow [2023-08-29 17:28:01,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=40, PETRI_TRANSITIONS=51} [2023-08-29 17:28:01,416 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2023-08-29 17:28:01,416 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 51 transitions, 256 flow [2023-08-29 17:28:01,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 17:28:01,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:01,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:01,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:28:01,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:28:01,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:01,418 INFO L85 PathProgramCache]: Analyzing trace with hash 337462358, now seen corresponding path program 1 times [2023-08-29 17:28:01,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:01,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336840552] [2023-08-29 17:28:01,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:01,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:01,503 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 17:28:01,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:01,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336840552] [2023-08-29 17:28:01,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336840552] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:01,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:01,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 17:28:01,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698049848] [2023-08-29 17:28:01,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:01,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:01,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:01,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:01,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:01,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 155 [2023-08-29 17:28:01,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 51 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 17:28:01,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:01,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 155 [2023-08-29 17:28:01,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:01,561 INFO L130 PetriNetUnfolder]: 49/160 cut-off events. [2023-08-29 17:28:01,562 INFO L131 PetriNetUnfolder]: For 201/207 co-relation queries the response was YES. [2023-08-29 17:28:01,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 160 events. 49/160 cut-off events. For 201/207 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 608 event pairs, 6 based on Foata normal form. 7/161 useless extension candidates. Maximal degree in co-relation 430. Up to 49 conditions per place. [2023-08-29 17:28:01,563 INFO L137 encePairwiseOnDemand]: 150/155 looper letters, 13 selfloop transitions, 6 changer transitions 7/48 dead transitions. [2023-08-29 17:28:01,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 48 transitions, 266 flow [2023-08-29 17:28:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2023-08-29 17:28:01,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6064516129032258 [2023-08-29 17:28:01,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2023-08-29 17:28:01,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2023-08-29 17:28:01,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:01,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2023-08-29 17:28:01,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 17:28:01,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,579 INFO L175 Difference]: Start difference. First operand has 40 places, 51 transitions, 256 flow. Second operand 3 states and 282 transitions. [2023-08-29 17:28:01,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 48 transitions, 266 flow [2023-08-29 17:28:01,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 226 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 17:28:01,585 INFO L231 Difference]: Finished difference. Result has 36 places, 39 transitions, 156 flow [2023-08-29 17:28:01,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=36, PETRI_TRANSITIONS=39} [2023-08-29 17:28:01,587 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-08-29 17:28:01,587 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 39 transitions, 156 flow [2023-08-29 17:28:01,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 17:28:01,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:01,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:01,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:28:01,588 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:28:01,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:01,589 INFO L85 PathProgramCache]: Analyzing trace with hash 527591835, now seen corresponding path program 1 times [2023-08-29 17:28:01,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:01,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290037411] [2023-08-29 17:28:01,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:01,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:01,672 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 17:28:01,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:01,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290037411] [2023-08-29 17:28:01,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290037411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:01,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:01,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:28:01,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308839619] [2023-08-29 17:28:01,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:01,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:28:01,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:01,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:28:01,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:28:01,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 155 [2023-08-29 17:28:01,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 39 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 17:28:01,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:01,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 155 [2023-08-29 17:28:01,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:01,740 INFO L130 PetriNetUnfolder]: 51/160 cut-off events. [2023-08-29 17:28:01,740 INFO L131 PetriNetUnfolder]: For 101/108 co-relation queries the response was YES. [2023-08-29 17:28:01,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 160 events. 51/160 cut-off events. For 101/108 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 595 event pairs, 16 based on Foata normal form. 1/146 useless extension candidates. Maximal degree in co-relation 433. Up to 102 conditions per place. [2023-08-29 17:28:01,742 INFO L137 encePairwiseOnDemand]: 150/155 looper letters, 20 selfloop transitions, 7 changer transitions 6/46 dead transitions. [2023-08-29 17:28:01,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 256 flow [2023-08-29 17:28:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:28:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:28:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-29 17:28:01,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.567741935483871 [2023-08-29 17:28:01,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-29 17:28:01,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-29 17:28:01,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:01,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-29 17:28:01,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 17:28:01,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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 17:28:01,747 INFO L175 Difference]: Start difference. First operand has 36 places, 39 transitions, 156 flow. Second operand 3 states and 264 transitions. [2023-08-29 17:28:01,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 256 flow [2023-08-29 17:28:01,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:28:01,749 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 181 flow [2023-08-29 17:28:01,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2023-08-29 17:28:01,751 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2023-08-29 17:28:01,752 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 181 flow [2023-08-29 17:28:01,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 17:28:01,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:01,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:01,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:28:01,753 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 17:28:01,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:01,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1292775603, now seen corresponding path program 1 times [2023-08-29 17:28:01,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:01,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819495245] [2023-08-29 17:28:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:01,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:28:01,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:28:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:28:01,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:28:01,818 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:28:01,819 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-08-29 17:28:01,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-29 17:28:01,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-08-29 17:28:01,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-08-29 17:28:01,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-08-29 17:28:01,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2023-08-29 17:28:01,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-08-29 17:28:01,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-08-29 17:28:01,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-08-29 17:28:01,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-08-29 17:28:01,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-29 17:28:01,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-29 17:28:01,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-29 17:28:01,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:28:01,823 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-29 17:28:01,829 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:28:01,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:28:01,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:28:01 BasicIcfg [2023-08-29 17:28:01,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:28:01,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:28:01,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:28:01,865 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:28:01,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:58" (3/4) ... [2023-08-29 17:28:01,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:28:01,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:28:01,868 INFO L158 Benchmark]: Toolchain (without parser) took 4578.75ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 57.0MB in the beginning and 97.1MB in the end (delta: -40.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-08-29 17:28:01,868 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:28:01,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 565.55ms. Allocated memory is still 81.8MB. Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.3MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-08-29 17:28:01,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.50ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 52.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:01,869 INFO L158 Benchmark]: Boogie Preprocessor took 23.84ms. Allocated memory is still 81.8MB. Free memory was 52.1MB in the beginning and 50.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:01,870 INFO L158 Benchmark]: RCFGBuilder took 438.28ms. Allocated memory is still 81.8MB. Free memory was 50.3MB in the beginning and 36.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 17:28:01,870 INFO L158 Benchmark]: TraceAbstraction took 3503.20ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 35.7MB in the beginning and 97.1MB in the end (delta: -61.4MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-08-29 17:28:01,870 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 130.0MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:28:01,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 565.55ms. Allocated memory is still 81.8MB. Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.3MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.50ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 52.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.84ms. Allocated memory is still 81.8MB. Free memory was 52.1MB in the beginning and 50.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.28ms. Allocated memory is still 81.8MB. Free memory was 50.3MB in the beginning and 36.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3503.20ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 35.7MB in the beginning and 97.1MB in the end (delta: -61.4MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 130.0MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 91 PlacesBefore, 37 PlacesAfterwards, 89 TransitionsBefore, 34 TransitionsAfterwards, 1596 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 6041 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2036, independent: 1700, independent conditional: 0, independent unconditional: 1700, dependent: 336, dependent conditional: 0, dependent unconditional: 336, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 797, independent: 749, independent conditional: 0, independent unconditional: 749, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2036, independent: 951, independent conditional: 0, independent unconditional: 951, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 797, unknown conditional: 0, unknown unconditional: 797] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 924]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int myglobal; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L936] 0 pthread_t id; [L937] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L930] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L932] CALL 1 fun() [L922] 1 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, i=0, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L939] EXPR 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L924] 1 myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L939] EXPR 0 myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=2, myglobal=myglobal+1=25] [L924] 1 myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [939] and C: myglobal+1 [924] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 937]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 13 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: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 325 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 48 mSDtfsCounter, 325 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=3, 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, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 17:28:01,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE