./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_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_18-first-reads_unknown_2_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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --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 17:40:28,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:40:28,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:40:28,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:40:28,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:40:28,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:40:28,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:40:28,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:40:28,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:40:28,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:40:28,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:40:28,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:40:28,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:40:28,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:40:28,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:40:28,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:40:28,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:40:28,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:40:28,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:40:28,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:40:28,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:40:28,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:40:28,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:40:28,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:40:28,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:40:28,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:40:28,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:40:28,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:40:28,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:40:28,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:40:28,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:40:28,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:40:28,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:40:28,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:40:28,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:40:28,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:40:28,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:40:28,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:40:28,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:40:28,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:40:28,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:40:28,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:40:28,915 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:40:28,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:40:28,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:40:28,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:40:28,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:40:28,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:40:28,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:40:28,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:40:28,918 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:40:28,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:40:28,918 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:40:28,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:40:28,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:40:28,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:40:28,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:40:28,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:40:28,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:40:28,919 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:40:28,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:40:28,920 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:40:28,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:40:28,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:40:28,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:40:28,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:40:28,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:28,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:40:28,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:40:28,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:40:28,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:40:28,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:40:28,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:40:28,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:40:28,922 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:40:28,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:40:28,923 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:40:28,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:40:29,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:40:29,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:40:29,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:40:29,242 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:40:29,243 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:40:29,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 17:40:30,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:40:30,586 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:40:30,587 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 17:40:30,615 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03248695e/f0c1bb011d0b4afc8b56bfaa0ba0ba8b/FLAG9bbdef633 [2023-08-30 17:40:30,636 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03248695e/f0c1bb011d0b4afc8b56bfaa0ba0ba8b [2023-08-30 17:40:30,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:40:30,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:40:30,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:30,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:40:30,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:40:30,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:30" (1/1) ... [2023-08-30 17:40:30,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e388baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:30, skipping insertion in model container [2023-08-30 17:40:30,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:30" (1/1) ... [2023-08-30 17:40:30,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:40:30,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:40:30,825 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_2_neg.i[1097,1110] [2023-08-30 17:40:30,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:30,953 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:40:30,967 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_2_neg.i[1097,1110] [2023-08-30 17:40:31,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:31,055 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:40:31,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31 WrapperNode [2023-08-30 17:40:31,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:31,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:31,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:40:31,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:40:31,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,113 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 17:40:31,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:31,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:40:31,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:40:31,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:40:31,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:40:31,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:40:31,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:40:31,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:40:31,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (1/1) ... [2023-08-30 17:40:31,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:31,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:40:31,180 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 17:40:31,187 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 17:40:31,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:40:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:40:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:40:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:40:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:40:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:40:31,213 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:40:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:40:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:40:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:40:31,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:40:31,215 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 17:40:31,344 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:40:31,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:40:31,511 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:40:31,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:40:31,516 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:40:31,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:31 BoogieIcfgContainer [2023-08-30 17:40:31,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:40:31,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:40:31,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:40:31,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:40:31,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:40:30" (1/3) ... [2023-08-30 17:40:31,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bcef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:31, skipping insertion in model container [2023-08-30 17:40:31,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:31" (2/3) ... [2023-08-30 17:40:31,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bcef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:31, skipping insertion in model container [2023-08-30 17:40:31,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:31" (3/3) ... [2023-08-30 17:40:31,541 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-08-30 17:40:31,547 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:40:31,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:40:31,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:40:31,556 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:40:31,603 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 17:40:31,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-30 17:40:31,696 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-08-30 17:40:31,696 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:40:31,700 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. [2023-08-30 17:40:31,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-30 17:40:31,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:31,708 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:40:31,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:31,728 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:31,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:31,750 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-08-30 17:40:31,750 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:31,751 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. [2023-08-30 17:40:31,752 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-30 17:40:33,669 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-30 17:40:33,669 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-30 17:40:33,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:40:33,694 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;@23a18d2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:40:33,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-30 17:40:33,699 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 17:40:33,700 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:33,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:40:33,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:40:33,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-30 17:40:33,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:40:33,707 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-30 17:40:33,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:40:33,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586316850] [2023-08-30 17:40:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:40:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:40:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:40:33,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 17:40:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:40:33,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 17:40:33,876 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 17:40:33,877 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-30 17:40:33,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-30 17:40:33,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-30 17:40:33,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:40:33,881 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 17:40:33,887 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:40:33,887 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:40:33,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:40:33 BasicIcfg [2023-08-30 17:40:33,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:40:33,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:40:33,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:40:33,906 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:40:33,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:31" (3/4) ... [2023-08-30 17:40:33,908 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 17:40:33,936 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:40:33,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:40:33,937 INFO L158 Benchmark]: Toolchain (without parser) took 3297.32ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.9MB in the beginning and 39.2MB in the end (delta: 6.7MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-08-30 17:40:33,937 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:33,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.51ms. Allocated memory is still 69.2MB. Free memory was 45.8MB in the beginning and 43.6MB in the end (delta: 2.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-08-30 17:40:33,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.47ms. Allocated memory is still 69.2MB. Free memory was 43.6MB in the beginning and 41.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:33,939 INFO L158 Benchmark]: Boogie Preprocessor took 37.89ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 40.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:33,939 INFO L158 Benchmark]: RCFGBuilder took 364.73ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 28.4MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 17:40:33,939 INFO L158 Benchmark]: TraceAbstraction took 2370.21ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 47.7MB in the beginning and 41.3MB in the end (delta: 6.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-08-30 17:40:33,940 INFO L158 Benchmark]: Witness Printer took 30.25ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:33,942 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 56.6MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.51ms. Allocated memory is still 69.2MB. Free memory was 45.8MB in the beginning and 43.6MB in the end (delta: 2.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.47ms. Allocated memory is still 69.2MB. Free memory was 43.6MB in the beginning and 41.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.89ms. Allocated memory is still 69.2MB. Free memory was 41.6MB in the beginning and 40.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.73ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 28.4MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2370.21ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 47.7MB in the beginning and 41.3MB in the end (delta: 6.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Witness Printer took 30.25ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 39.2MB in the end (delta: 1.5MB). 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: 1.9s, 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 == 1)) [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: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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! [2023-08-30 17:40:33,961 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