./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.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_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 db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d --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 00:04:50,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:04:50,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:04:50,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:04:50,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:04:50,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:04:50,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:04:50,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:04:50,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:04:50,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:04:50,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:04:50,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:04:50,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:04:50,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:04:50,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:04:50,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:04:50,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:04:50,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:04:50,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:04:50,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:04:50,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:04:50,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:04:50,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:04:50,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:04:50,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:04:50,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:04:50,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:04:50,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:04:50,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:04:50,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:04:50,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:04:50,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:04:50,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:04:50,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:04:50,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:04:50,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:04:50,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:04:50,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:04:50,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:04:50,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:04:50,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:04:50,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:04:50,743 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:04:50,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:04:50,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:04:50,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:04:50,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:04:50,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:04:50,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:04:50,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:04:50,747 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:04:50,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:04:50,748 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:04:50,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:04:50,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:04:50,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:04:50,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:04:50,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:04:50,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:04:50,749 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:04:50,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:04:50,750 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:04:50,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:04:50,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:04:50,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:04:50,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:04:50,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:04:50,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:04:50,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:04:50,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:04:50,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:04:50,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:04:50,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:04:50,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:04:50,753 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:04:50,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:04:50,753 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:04:50,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:04:51,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:04:51,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:04:51,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:04:51,097 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:04:51,097 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:04:51,098 INFO L432 ainManager$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_neg.i [2023-08-31 00:04:52,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:04:52,390 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:04:52,391 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-31 00:04:52,401 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20efa85c/03d7b40e6dca463aa76866b5bfb7e10a/FLAGa78ec8a4b [2023-08-31 00:04:52,417 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20efa85c/03d7b40e6dca463aa76866b5bfb7e10a [2023-08-31 00:04:52,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:04:52,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:04:52,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:04:52,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:04:52,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:04:52,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0d36d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52, skipping insertion in model container [2023-08-31 00:04:52,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:04:52,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:04:52,602 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_neg.i[1097,1110] [2023-08-31 00:04:52,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:04:52,713 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:04:52,723 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_neg.i[1097,1110] [2023-08-31 00:04:52,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:04:52,781 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:04:52,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52 WrapperNode [2023-08-31 00:04:52,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:04:52,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:04:52,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:04:52,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:04:52,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,840 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-31 00:04:52,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:04:52,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:04:52,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:04:52,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:04:52,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:04:52,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:04:52,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:04:52,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:04:52,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (1/1) ... [2023-08-31 00:04:52,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:04:52,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:04:52,904 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 00:04:52,907 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 00:04:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:04:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:04:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:04:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:04:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:04:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:04:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:04:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:04:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:04:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:04:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:04:52,939 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 00:04:53,072 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:04:53,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:04:53,318 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:04:53,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:04:53,328 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:04:53,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:04:53 BoogieIcfgContainer [2023-08-31 00:04:53,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:04:53,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:04:53,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:04:53,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:04:53,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:04:52" (1/3) ... [2023-08-31 00:04:53,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1de0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:04:53, skipping insertion in model container [2023-08-31 00:04:53,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:04:52" (2/3) ... [2023-08-31 00:04:53,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1de0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:04:53, skipping insertion in model container [2023-08-31 00:04:53,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:04:53" (3/3) ... [2023-08-31 00:04:53,341 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-08-31 00:04:53,349 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:04:53,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:04:53,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:04:53,358 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:04:53,444 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 00:04:53,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-31 00:04:53,532 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-08-31 00:04:53,532 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 00:04:53,536 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 00:04:53,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-31 00:04:53,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-31 00:04:53,549 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:04:53,567 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-31 00:04:53,571 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-31 00:04:53,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-31 00:04:53,592 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-08-31 00:04:53,592 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:04:53,593 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 00:04:53,594 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-31 00:04:55,438 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-31 00:04:55,438 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-31 00:04:55,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:04:55,455 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;@5912a463, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:04:55,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-31 00:04:55,466 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-31 00:04:55,467 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:04:55,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:04:55,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:04:55,469 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 00:04:55,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:04:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-31 00:04:55,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:04:55,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3906316] [2023-08-31 00:04:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:04:55,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:04:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:04:55,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:04:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:04:55,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:04:55,671 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:04:55,672 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-31 00:04:55,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-31 00:04:55,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-31 00:04:55,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:04:55,676 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:04:55,685 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:04:55,685 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:04:55,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:04:55 BasicIcfg [2023-08-31 00:04:55,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:04:55,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:04:55,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:04:55,705 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:04:55,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:04:53" (3/4) ... [2023-08-31 00:04:55,707 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:04:55,751 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:04:55,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:04:55,752 INFO L158 Benchmark]: Toolchain (without parser) took 3331.15ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.5MB in the beginning and 50.5MB in the end (delta: -3.0MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,752 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 34.0MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:04:55,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.98ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.13ms. Allocated memory is still 71.3MB. Free memory was 45.2MB in the beginning and 43.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,753 INFO L158 Benchmark]: Boogie Preprocessor took 30.54ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 41.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,754 INFO L158 Benchmark]: RCFGBuilder took 458.74ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 47.9MB in the end (delta: -6.0MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,754 INFO L158 Benchmark]: TraceAbstraction took 2370.84ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.3MB in the beginning and 52.6MB in the end (delta: -5.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,755 INFO L158 Benchmark]: Witness Printer took 46.76ms. Allocated memory is still 86.0MB. Free memory was 52.6MB in the beginning and 50.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:04:55,760 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 56.6MB. Free memory was 34.1MB in the beginning and 34.0MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.98ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.13ms. Allocated memory is still 71.3MB. Free memory was 45.2MB in the beginning and 43.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.54ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 41.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.74ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 47.9MB in the end (delta: -6.0MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2370.84ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.3MB in the beginning and 52.6MB in the end (delta: -5.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 46.76ms. Allocated memory is still 86.0MB. Free memory was 52.6MB in the beginning and 50.5MB 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: 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 FALSE 1 !(t == 42) [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=0, 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! [2023-08-31 00:04:55,785 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