./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.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/05-lval_ls_15-fldunknown_access.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 a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 --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 17:30:53,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:30:53,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:30:53,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:30:53,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:30:53,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:30:53,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:30:53,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:30:53,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:30:53,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:30:53,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:30:53,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:30:53,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:30:53,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:30:53,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:30:53,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:30:53,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:30:53,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:30:53,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:30:53,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:30:53,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:30:53,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:30:53,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:30:53,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:30:53,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:30:53,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:30:53,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:30:53,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:30:53,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:30:53,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:30:53,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:30:53,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:30:53,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:30:53,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:30:53,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:30:53,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:30:53,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:30:53,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:30:53,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:30:53,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:30:53,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:30:53,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:30:53,450 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:30:53,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:30:53,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:30:53,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:30:53,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:30:53,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:30:53,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:30:53,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:30:53,454 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:30:53,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:30:53,455 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:30:53,455 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:30:53,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:30:53,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:30:53,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:30:53,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:30:53,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:30:53,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:30:53,457 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:30:53,457 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:30:53,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:30:53,457 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:30:53,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:30:53,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:30:53,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:30:53,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:30:53,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:53,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:30:53,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:30:53,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:30:53,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:30:53,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:30:53,460 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:30:53,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:30:53,460 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:30:53,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:30:53,460 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:30:53,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:30:53,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:30:53,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:30:53,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:30:53,795 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:30:53,796 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:30:53,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2023-08-29 17:30:54,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:30:55,133 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:30:55,133 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2023-08-29 17:30:55,153 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7df6b90b/f297743d241b440795a2c28dc2ec7101/FLAG30c21225d [2023-08-29 17:30:55,164 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7df6b90b/f297743d241b440795a2c28dc2ec7101 [2023-08-29 17:30:55,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:30:55,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:30:55,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:55,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:30:55,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:30:55,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d91de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55, skipping insertion in model container [2023-08-29 17:30:55,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:30:55,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:30:55,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:55,603 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:30:55,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:55,730 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:30:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55 WrapperNode [2023-08-29 17:30:55,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:55,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:55,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:30:55,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:30:55,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,792 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-08-29 17:30:55,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:55,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:30:55,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:30:55,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:30:55,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:30:55,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:30:55,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:30:55,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:30:55,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (1/1) ... [2023-08-29 17:30:55,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:55,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:55,878 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 17:30:55,880 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 17:30:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:30:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:30:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:30:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:30:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:30:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:30:55,911 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:30:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:30:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:30:55,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:30:55,913 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 17:30:56,032 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:30:56,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:30:56,295 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:30:56,301 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:30:56,301 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:30:56,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:56 BoogieIcfgContainer [2023-08-29 17:30:56,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:30:56,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:30:56,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:30:56,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:30:56,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:30:55" (1/3) ... [2023-08-29 17:30:56,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1819df5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:56, skipping insertion in model container [2023-08-29 17:30:56,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:55" (2/3) ... [2023-08-29 17:30:56,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1819df5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:56, skipping insertion in model container [2023-08-29 17:30:56,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:56" (3/3) ... [2023-08-29 17:30:56,323 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2023-08-29 17:30:56,330 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:30:56,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:30:56,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 17:30:56,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:30:56,429 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:30:56,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2023-08-29 17:30:56,526 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2023-08-29 17:30:56,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:56,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-29 17:30:56,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 149 flow [2023-08-29 17:30:56,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2023-08-29 17:30:56,539 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:30:56,560 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 145 flow [2023-08-29 17:30:56,566 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 145 flow [2023-08-29 17:30:56,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 145 flow [2023-08-29 17:30:56,596 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2023-08-29 17:30:56,597 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:56,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-29 17:30:56,599 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-29 17:30:58,102 INFO L134 LiptonReduction]: Checked pairs total: 5426 [2023-08-29 17:30:58,103 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-29 17:30:58,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:30:58,118 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;@462b0d1e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:30:58,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 17:30:58,123 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-29 17:30:58,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:58,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:58,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:58,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:58,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash 741880636, now seen corresponding path program 1 times [2023-08-29 17:30:58,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:58,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54255460] [2023-08-29 17:30:58,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:58,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:58,655 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 17:30:58,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:58,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54255460] [2023-08-29 17:30:58,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54255460] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:58,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:58,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:30:58,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049245642] [2023-08-29 17:30:58,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:58,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:58,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:58,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:58,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:58,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 113 [2023-08-29 17:30:58,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 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 17:30:58,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:58,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 113 [2023-08-29 17:30:58,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:59,029 INFO L130 PetriNetUnfolder]: 112/276 cut-off events. [2023-08-29 17:30:59,029 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:59,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 276 events. 112/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1167 event pairs, 43 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 524. Up to 182 conditions per place. [2023-08-29 17:30:59,035 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 34 selfloop transitions, 22 changer transitions 0/64 dead transitions. [2023-08-29 17:30:59,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 64 transitions, 243 flow [2023-08-29 17:30:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 387 transitions. [2023-08-29 17:30:59,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707964601769911 [2023-08-29 17:30:59,048 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 387 transitions. [2023-08-29 17:30:59,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 387 transitions. [2023-08-29 17:30:59,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:59,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 387 transitions. [2023-08-29 17:30:59,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 17:30:59,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:30:59,060 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:30:59,062 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 63 flow. Second operand 6 states and 387 transitions. [2023-08-29 17:30:59,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 64 transitions, 243 flow [2023-08-29 17:30:59,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 64 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:59,066 INFO L231 Difference]: Finished difference. Result has 43 places, 51 transitions, 212 flow [2023-08-29 17:30:59,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=43, PETRI_TRANSITIONS=51} [2023-08-29 17:30:59,070 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-08-29 17:30:59,071 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 51 transitions, 212 flow [2023-08-29 17:30:59,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 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 17:30:59,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:59,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:59,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:30:59,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:59,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:59,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1416137447, now seen corresponding path program 1 times [2023-08-29 17:30:59,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:59,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040716580] [2023-08-29 17:30:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:59,311 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 17:30:59,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:59,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040716580] [2023-08-29 17:30:59,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040716580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:59,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:59,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:30:59,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811795498] [2023-08-29 17:30:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:59,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:59,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:59,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2023-08-29 17:30:59,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 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 17:30:59,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:59,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2023-08-29 17:30:59,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:59,545 INFO L130 PetriNetUnfolder]: 141/362 cut-off events. [2023-08-29 17:30:59,545 INFO L131 PetriNetUnfolder]: For 122/125 co-relation queries the response was YES. [2023-08-29 17:30:59,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 362 events. 141/362 cut-off events. For 122/125 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1681 event pairs, 44 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 846. Up to 223 conditions per place. [2023-08-29 17:30:59,550 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 45 selfloop transitions, 26 changer transitions 0/84 dead transitions. [2023-08-29 17:30:59,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 84 transitions, 438 flow [2023-08-29 17:30:59,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2023-08-29 17:30:59,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5412979351032449 [2023-08-29 17:30:59,554 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 367 transitions. [2023-08-29 17:30:59,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 367 transitions. [2023-08-29 17:30:59,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:59,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 367 transitions. [2023-08-29 17:30:59,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 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 17:30:59,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:30:59,561 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:30:59,561 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 212 flow. Second operand 6 states and 367 transitions. [2023-08-29 17:30:59,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 84 transitions, 438 flow [2023-08-29 17:30:59,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:30:59,568 INFO L231 Difference]: Finished difference. Result has 53 places, 72 transitions, 396 flow [2023-08-29 17:30:59,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=53, PETRI_TRANSITIONS=72} [2023-08-29 17:30:59,569 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2023-08-29 17:30:59,569 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 72 transitions, 396 flow [2023-08-29 17:30:59,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 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 17:30:59,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:59,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:59,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:30:59,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:59,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:59,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1853542636, now seen corresponding path program 1 times [2023-08-29 17:30:59,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:59,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50583501] [2023-08-29 17:30:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:59,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:59,877 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 17:30:59,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:59,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50583501] [2023-08-29 17:30:59,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50583501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:59,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:59,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:30:59,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069293213] [2023-08-29 17:30:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:59,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:59,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 113 [2023-08-29 17:30:59,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 72 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 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 17:30:59,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:59,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 113 [2023-08-29 17:30:59,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:31:00,107 INFO L130 PetriNetUnfolder]: 227/535 cut-off events. [2023-08-29 17:31:00,108 INFO L131 PetriNetUnfolder]: For 424/426 co-relation queries the response was YES. [2023-08-29 17:31:00,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 535 events. 227/535 cut-off events. For 424/426 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2504 event pairs, 62 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 1633. Up to 406 conditions per place. [2023-08-29 17:31:00,111 INFO L137 encePairwiseOnDemand]: 99/113 looper letters, 68 selfloop transitions, 49 changer transitions 4/127 dead transitions. [2023-08-29 17:31:00,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 127 transitions, 862 flow [2023-08-29 17:31:00,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:31:00,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:31:00,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 350 transitions. [2023-08-29 17:31:00,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5162241887905604 [2023-08-29 17:31:00,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 350 transitions. [2023-08-29 17:31:00,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 350 transitions. [2023-08-29 17:31:00,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:31:00,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 350 transitions. [2023-08-29 17:31:00,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 58.333333333333336) internal successors, (350), 6 states have internal predecessors, (350), 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 17:31:00,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:31:00,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:31:00,117 INFO L175 Difference]: Start difference. First operand has 53 places, 72 transitions, 396 flow. Second operand 6 states and 350 transitions. [2023-08-29 17:31:00,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 127 transitions, 862 flow [2023-08-29 17:31:00,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 127 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:31:00,123 INFO L231 Difference]: Finished difference. Result has 62 places, 115 transitions, 783 flow [2023-08-29 17:31:00,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=783, PETRI_PLACES=62, PETRI_TRANSITIONS=115} [2023-08-29 17:31:00,124 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 28 predicate places. [2023-08-29 17:31:00,124 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 115 transitions, 783 flow [2023-08-29 17:31:00,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.166666666666664) internal successors, (289), 6 states have internal predecessors, (289), 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 17:31:00,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:31:00,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:31:00,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:31:00,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:31:00,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:31:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash -397352157, now seen corresponding path program 1 times [2023-08-29 17:31:00,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:31:00,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650586987] [2023-08-29 17:31:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:31:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:31:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:31:00,391 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 17:31:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:31:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650586987] [2023-08-29 17:31:00,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650586987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:31:00,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:31:00,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:31:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633276000] [2023-08-29 17:31:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:31:00,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:31:00,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:31:00,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:31:00,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:31:00,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 113 [2023-08-29 17:31:00,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 115 transitions, 783 flow. Second operand has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 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 17:31:00,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:31:00,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 113 [2023-08-29 17:31:00,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:31:00,653 INFO L130 PetriNetUnfolder]: 276/634 cut-off events. [2023-08-29 17:31:00,654 INFO L131 PetriNetUnfolder]: For 919/935 co-relation queries the response was YES. [2023-08-29 17:31:00,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2379 conditions, 634 events. 276/634 cut-off events. For 919/935 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3074 event pairs, 65 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 2356. Up to 523 conditions per place. [2023-08-29 17:31:00,658 INFO L137 encePairwiseOnDemand]: 99/113 looper letters, 105 selfloop transitions, 57 changer transitions 4/170 dead transitions. [2023-08-29 17:31:00,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 170 transitions, 1425 flow [2023-08-29 17:31:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:31:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:31:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 369 transitions. [2023-08-29 17:31:00,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5442477876106194 [2023-08-29 17:31:00,663 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 369 transitions. [2023-08-29 17:31:00,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 369 transitions. [2023-08-29 17:31:00,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:31:00,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 369 transitions. [2023-08-29 17:31:00,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:31:00,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:31:00,670 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:31:00,670 INFO L175 Difference]: Start difference. First operand has 62 places, 115 transitions, 783 flow. Second operand 6 states and 369 transitions. [2023-08-29 17:31:00,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 170 transitions, 1425 flow [2023-08-29 17:31:00,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 170 transitions, 1369 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-29 17:31:00,681 INFO L231 Difference]: Finished difference. Result has 71 places, 158 transitions, 1200 flow [2023-08-29 17:31:00,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1200, PETRI_PLACES=71, PETRI_TRANSITIONS=158} [2023-08-29 17:31:00,682 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 37 predicate places. [2023-08-29 17:31:00,683 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 158 transitions, 1200 flow [2023-08-29 17:31:00,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 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 17:31:00,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:31:00,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:31:00,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:31:00,684 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:31:00,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:31:00,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1472061973, now seen corresponding path program 1 times [2023-08-29 17:31:00,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:31:00,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448466318] [2023-08-29 17:31:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:31:00,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:31:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:31:00,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:31:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:31:00,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:31:00,781 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:31:00,782 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 17:31:00,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 17:31:00,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-29 17:31:00,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-29 17:31:00,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 17:31:00,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 17:31:00,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 17:31:00,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:31:00,788 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 17:31:00,793 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:31:00,794 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:31:00,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:31:00 BasicIcfg [2023-08-29 17:31:00,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:31:00,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:31:00,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:31:00,835 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:31:00,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:56" (3/4) ... [2023-08-29 17:31:00,838 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:31:00,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:31:00,839 INFO L158 Benchmark]: Toolchain (without parser) took 5670.79ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 69.0MB in the beginning and 101.3MB in the end (delta: -32.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-08-29 17:31:00,839 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:31:00,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.02ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 63.4MB in the end (delta: 5.5MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-08-29 17:31:00,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.77ms. Allocated memory is still 92.3MB. Free memory was 63.4MB in the beginning and 61.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:31:00,843 INFO L158 Benchmark]: Boogie Preprocessor took 48.28ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:31:00,847 INFO L158 Benchmark]: RCFGBuilder took 460.35ms. Allocated memory is still 92.3MB. Free memory was 59.1MB in the beginning and 45.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 17:31:00,848 INFO L158 Benchmark]: TraceAbstraction took 4517.86ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 69.3MB in the beginning and 102.3MB in the end (delta: -33.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-08-29 17:31:00,848 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 101.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:31:00,850 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 67.1MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.02ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 63.4MB in the end (delta: 5.5MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.77ms. Allocated memory is still 92.3MB. Free memory was 63.4MB in the beginning and 61.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.28ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.35ms. Allocated memory is still 92.3MB. Free memory was 59.1MB in the beginning and 45.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4517.86ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 69.3MB in the beginning and 102.3MB in the end (delta: -33.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 101.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 74 PlacesBefore, 34 PlacesAfterwards, 71 TransitionsBefore, 30 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 5426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1104, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 461, independent: 410, independent conditional: 0, independent unconditional: 410, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1104, independent: 389, independent conditional: 0, independent unconditional: 389, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 461, unknown conditional: 0, unknown unconditional: 461] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L918-L921] 0 struct { int x; int y; } data; [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L928] 0 pthread_t id; [L929] COND TRUE 0 \read(j) [L929] 0 i = &data.x [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L932] EXPR 0 \read(*i) VAL [\read(*i)=0, arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [(*i)++=0, (*i)++=9, \read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] Now there is a data race (on the heap) between C: (*i)++ [932] and C: data.x++ [923] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 923]: 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, 96 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 914 IncrementalHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 31 mSDtfsCounter, 914 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1200occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 17:31:00,891 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