./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:41:54,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:41:54,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:41:54,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:41:54,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:41:54,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:41:54,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:41:54,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:41:54,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:41:54,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:41:54,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:41:54,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:41:54,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:41:54,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:41:54,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:41:54,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:41:54,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:41:54,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:41:54,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:41:54,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:41:54,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:41:54,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:41:54,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:41:54,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:41:54,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:41:54,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:41:54,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:41:54,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:41:54,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:41:54,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:41:54,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:41:54,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:41:54,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:41:54,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:41:54,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:41:54,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:41:54,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:41:54,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:41:54,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:41:54,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:41:54,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:41:54,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:41:54,332 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:41:54,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:41:54,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:41:54,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:41:54,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:41:54,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:41:54,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:41:54,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:41:54,336 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:41:54,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:41:54,337 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:41:54,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:41:54,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:41:54,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:41:54,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:41:54,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:41:54,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:41:54,339 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:41:54,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:41:54,339 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:41:54,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:41:54,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:41:54,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:41:54,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:41:54,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:41:54,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:41:54,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:41:54,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:41:54,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:41:54,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:41:54,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:41:54,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:41:54,342 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:41:54,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:41:54,342 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:41:54,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:41:54,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:41:54,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:41:54,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:41:54,650 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:41:54,650 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:41:54,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-30 17:41:55,801 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:41:56,029 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:41:56,030 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-30 17:41:56,043 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7625b136a/7f9f5434e51341de8807ccb1772efad9/FLAGa36c00c05 [2023-08-30 17:41:56,063 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7625b136a/7f9f5434e51341de8807ccb1772efad9 [2023-08-30 17:41:56,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:41:56,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:41:56,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:41:56,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:41:56,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:41:56,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cc2442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56, skipping insertion in model container [2023-08-30 17:41:56,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:41:56,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:41:56,241 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2023-08-30 17:41:56,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:41:56,412 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:41:56,423 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2023-08-30 17:41:56,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:41:56,478 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:41:56,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56 WrapperNode [2023-08-30 17:41:56,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:41:56,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:41:56,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:41:56,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:41:56,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,539 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-08-30 17:41:56,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:41:56,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:41:56,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:41:56,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:41:56,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:41:56,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:41:56,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:41:56,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:41:56,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (1/1) ... [2023-08-30 17:41:56,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:41:56,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:41:56,627 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) [2023-08-30 17:41:56,646 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 [2023-08-30 17:41:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:41:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:41:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:41:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:41:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:41:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:41:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:41:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:41:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:41:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:41:56,669 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:41:56,836 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:41:56,838 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:41:57,024 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:41:57,029 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:41:57,029 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:41:57,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:57 BoogieIcfgContainer [2023-08-30 17:41:57,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:41:57,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:41:57,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:41:57,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:41:57,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:41:56" (1/3) ... [2023-08-30 17:41:57,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac42850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:41:57, skipping insertion in model container [2023-08-30 17:41:57,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:41:56" (2/3) ... [2023-08-30 17:41:57,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac42850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:41:57, skipping insertion in model container [2023-08-30 17:41:57,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:57" (3/3) ... [2023-08-30 17:41:57,042 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-30 17:41:57,050 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:41:57,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:41:57,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:41:57,060 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:41:57,122 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 17:41:57,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2023-08-30 17:41:57,217 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2023-08-30 17:41:57,217 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:57,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 17:41:57,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2023-08-30 17:41:57,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-08-30 17:41:57,229 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:41:57,241 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-30 17:41:57,245 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-30 17:41:57,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-08-30 17:41:57,273 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-30 17:41:57,273 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:57,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 17:41:57,275 INFO L119 LiptonReduction]: Number of co-enabled transitions 240 [2023-08-30 17:41:59,363 INFO L134 LiptonReduction]: Checked pairs total: 592 [2023-08-30 17:41:59,363 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-08-30 17:41:59,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:41:59,384 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;@1870853c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:41:59,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-30 17:41:59,388 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 17:41:59,389 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:41:59,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:41:59,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:41:59,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:41:59,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:41:59,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1761964991, now seen corresponding path program 1 times [2023-08-30 17:41:59,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:41:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367272798] [2023-08-30 17:41:59,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:41:59,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:41:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:41:59,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 17:41:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:41:59,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 17:41:59,554 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 17:41:59,555 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-30 17:41:59,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-30 17:41:59,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:41:59,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 17:41:59,562 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:41:59,562 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:41:59,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:41:59 BasicIcfg [2023-08-30 17:41:59,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:41:59,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:41:59,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:41:59,579 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:41:59,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:41:57" (3/4) ... [2023-08-30 17:41:59,581 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 17:41:59,610 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:41:59,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:41:59,611 INFO L158 Benchmark]: Toolchain (without parser) took 3543.79ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 49.6MB in the beginning and 63.8MB in the end (delta: -14.2MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,611 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:59,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.47ms. Allocated memory is still 71.3MB. Free memory was 49.4MB in the beginning and 30.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.70ms. Allocated memory is still 71.3MB. Free memory was 30.8MB in the beginning and 29.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:59,612 INFO L158 Benchmark]: Boogie Preprocessor took 44.86ms. Allocated memory is still 71.3MB. Free memory was 28.7MB in the beginning and 27.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:59,613 INFO L158 Benchmark]: RCFGBuilder took 444.99ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 27.5MB in the beginning and 63.1MB in the end (delta: -35.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,613 INFO L158 Benchmark]: TraceAbstraction took 2545.22ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 65.9MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:41:59,614 INFO L158 Benchmark]: Witness Printer took 31.13ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:41:59,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.47ms. Allocated memory is still 71.3MB. Free memory was 49.4MB in the beginning and 30.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.70ms. Allocated memory is still 71.3MB. Free memory was 30.8MB in the beginning and 29.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.86ms. Allocated memory is still 71.3MB. Free memory was 28.7MB in the beginning and 27.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 444.99ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 27.5MB in the beginning and 63.1MB in the end (delta: -35.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2545.22ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 65.9MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.13ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 269, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 126, unknown conditional: 0, unknown unconditional: 126] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=0] - UnprovableResult [Line: 694]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 72 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-08-30 17:41:59,637 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