./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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_18-first-reads_unknown_1_pos.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 a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 --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 [2023-08-31 00:04:58,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:04:58,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:04:58,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:04:58,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:04:58,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:04:58,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:04:58,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:04:58,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:04:58,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:04:58,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:04:58,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:04:58,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:04:58,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:04:58,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:04:58,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:04:58,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:04:58,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:04:58,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:04:58,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:04:58,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:04:58,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:04:58,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:04:58,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:04:58,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:04:58,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:04:58,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:04:58,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:04:58,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:04:58,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:04:58,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:04:58,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:04:58,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:04:58,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:04:58,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:04:58,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:04:58,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:04:58,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:04:58,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:04:58,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:04:58,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:04:58,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:04:58,280 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:04:58,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:04:58,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:04:58,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:04:58,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:04:58,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:04:58,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:04:58,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:04:58,284 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:04:58,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:04:58,285 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:04:58,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:04:58,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:04:58,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:04:58,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:04:58,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:04:58,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:04:58,286 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:04:58,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:04:58,287 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:04:58,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:04:58,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:04:58,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:04:58,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:04:58,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:04:58,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:04:58,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:04:58,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:04:58,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:04:58,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:04:58,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:04:58,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:04:58,289 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:04:58,289 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:04:58,290 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:04:58,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:04:58,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:04:58,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:04:58,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:04:58,636 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:04:58,637 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:04:58,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-31 00:04:59,908 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:05:00,262 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:05:00,263 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-31 00:05:00,279 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0bf3da3/7251ccd72fae4574ab1cc210dee5954c/FLAG37183ba83 [2023-08-31 00:05:00,306 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc0bf3da3/7251ccd72fae4574ab1cc210dee5954c [2023-08-31 00:05:00,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:05:00,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:05:00,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:05:00,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:05:00,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:05:00,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414d90dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00, skipping insertion in model container [2023-08-31 00:05:00,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:05:00,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:05:00,519 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_18-first-reads_unknown_1_pos.i[1097,1110] [2023-08-31 00:05:00,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:05:00,705 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:05:00,718 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_18-first-reads_unknown_1_pos.i[1097,1110] [2023-08-31 00:05:00,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:05:00,803 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:05:00,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00 WrapperNode [2023-08-31 00:05:00,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:05:00,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:05:00,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:05:00,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:05:00,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,862 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-31 00:05:00,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:05:00,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:05:00,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:05:00,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:05:00,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:05:00,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:05:00,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:05:00,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:05:00,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (1/1) ... [2023-08-31 00:05:00,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:05:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:05:00,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 00:05:00,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 00:05:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:05:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:05:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:05:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:05:00,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:05:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:05:00,984 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:05:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:05:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:05:00,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:05:00,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:05:00,986 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:05:01,135 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:05:01,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:05:01,294 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:05:01,299 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:05:01,300 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:05:01,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:05:01 BoogieIcfgContainer [2023-08-31 00:05:01,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:05:01,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:05:01,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:05:01,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:05:01,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:05:00" (1/3) ... [2023-08-31 00:05:01,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34895c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:05:01, skipping insertion in model container [2023-08-31 00:05:01,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:00" (2/3) ... [2023-08-31 00:05:01,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34895c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:05:01, skipping insertion in model container [2023-08-31 00:05:01,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:05:01" (3/3) ... [2023-08-31 00:05:01,310 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-08-31 00:05:01,317 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:05:01,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:05:01,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:05:01,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:05:01,393 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 00:05:01,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-31 00:05:01,486 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-08-31 00:05:01,487 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 00:05:01,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-08-31 00:05:01,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-31 00:05:01,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:01,499 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:05:01,518 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:01,523 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:01,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:01,547 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-08-31 00:05:01,547 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:05:01,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-31 00:05:01,549 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-31 00:05:03,517 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-31 00:05:03,518 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-31 00:05:03,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:05:03,536 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;@56d766b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:05:03,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-31 00:05:03,539 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-31 00:05:03,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:05:03,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:05:03,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:05:03,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-31 00:05:03,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:05:03,546 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-31 00:05:03,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:05:03,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010379359] [2023-08-31 00:05:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:05:03,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:05:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:05:03,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:05:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:05:03,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:05:03,695 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:05:03,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-31 00:05:03,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-31 00:05:03,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-31 00:05:03,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:05:03,699 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:05:03,705 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:05:03,706 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:05:03,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:05:03 BasicIcfg [2023-08-31 00:05:03,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:05:03,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:05:03,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:05:03,722 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:05:03,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:05:01" (3/4) ... [2023-08-31 00:05:03,724 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:05:03,756 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:05:03,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:05:03,757 INFO L158 Benchmark]: Toolchain (without parser) took 3446.82ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 35.9MB in the end (delta: 12.1MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,758 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:05:03,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.52ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 47.4MB in the end (delta: 426.1kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.85ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,759 INFO L158 Benchmark]: Boogie Preprocessor took 42.43ms. Allocated memory is still 71.3MB. Free memory was 45.3MB in the beginning and 43.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,759 INFO L158 Benchmark]: RCFGBuilder took 394.68ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 32.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,759 INFO L158 Benchmark]: TraceAbstraction took 2417.54ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 31.3MB in the beginning and 37.3MB in the end (delta: -5.9MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,760 INFO L158 Benchmark]: Witness Printer took 34.23ms. Allocated memory is still 88.1MB. Free memory was 37.3MB in the beginning and 35.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:05:03,762 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 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.52ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 47.4MB in the end (delta: 426.1kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.85ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.43ms. Allocated memory is still 71.3MB. Free memory was 45.3MB in the beginning and 43.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.68ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 32.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2417.54ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 31.3MB in the beginning and 37.3MB in the end (delta: -5.9MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 34.23ms. Allocated memory is still 88.1MB. Free memory was 37.3MB in the beginning and 35.9MB in the end (delta: 1.4MB). 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: 2.0s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 81 locations, 3 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: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 NumberOfCodeBlocks, 3 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! [2023-08-31 00:05:03,784 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