./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 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_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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:40:13,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:40:13,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:40:13,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:40:13,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:40:13,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:40:13,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:40:13,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:40:13,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:40:13,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:40:13,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:40:13,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:40:13,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:40:13,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:40:13,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:40:13,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:40:13,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:40:13,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:40:13,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:40:13,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:40:13,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:40:13,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:40:13,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:40:13,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:40:13,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:40:13,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:40:13,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:40:13,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:40:13,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:40:13,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:40:13,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:40:13,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:40:13,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:40:13,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:40:13,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:40:13,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:40:14,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:40:14,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:40:14,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:40:14,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:40:14,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:40:14,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:40:14,035 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:40:14,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:40:14,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:40:14,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:40:14,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:40:14,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:40:14,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:40:14,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:40:14,038 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:40:14,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:40:14,039 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:40:14,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:40:14,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:40:14,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:40:14,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:40:14,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:40:14,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:40:14,041 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:40:14,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:40:14,041 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:40:14,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:40:14,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:40:14,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:40:14,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:40:14,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:14,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:40:14,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:40:14,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:40:14,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:40:14,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:40:14,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:40:14,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:40:14,045 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:40:14,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:40:14,045 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:40:14,045 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:40:14,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:40:14,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:40:14,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:40:14,401 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:40:14,402 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:40:14,403 INFO L432 ainManager$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 [2023-08-30 17:40:15,524 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:40:15,770 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:40:15,771 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 17:40:15,780 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bb48538/1a9531f36d5646289a2dcf141bc89999/FLAG90c6cbad5 [2023-08-30 17:40:15,794 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18bb48538/1a9531f36d5646289a2dcf141bc89999 [2023-08-30 17:40:15,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:40:15,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:40:15,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:15,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:40:15,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:40:15,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:15" (1/1) ... [2023-08-30 17:40:15,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274dd93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:15, skipping insertion in model container [2023-08-30 17:40:15,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:15" (1/1) ... [2023-08-30 17:40:15,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:40:15,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:40:15,988 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] [2023-08-30 17:40:16,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:16,173 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:40:16,184 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] [2023-08-30 17:40:16,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:16,261 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:40:16,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16 WrapperNode [2023-08-30 17:40:16,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:16,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:16,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:40:16,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:40:16,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,318 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 17:40:16,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:16,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:40:16,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:40:16,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:40:16,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:40:16,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:40:16,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:40:16,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:40:16,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (1/1) ... [2023-08-30 17:40:16,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:16,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:40:16,394 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 17:40:16,419 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 17:40:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:40:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:40:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:40:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:40:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:40:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:40:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:40:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:40:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:40:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:40:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:40:16,437 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 17:40:16,603 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:40:16,605 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:40:16,761 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:40:16,767 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:40:16,767 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:40:16,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:16 BoogieIcfgContainer [2023-08-30 17:40:16,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:40:16,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:40:16,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:40:16,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:40:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:40:15" (1/3) ... [2023-08-30 17:40:16,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fc8615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:16, skipping insertion in model container [2023-08-30 17:40:16,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:16" (2/3) ... [2023-08-30 17:40:16,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fc8615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:16, skipping insertion in model container [2023-08-30 17:40:16,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:16" (3/3) ... [2023-08-30 17:40:16,777 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 17:40:16,786 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:40:16,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:40:16,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:40:16,795 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:40:16,870 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 17:40:16,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-30 17:40:16,955 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-08-30 17:40:16,955 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:40:16,959 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 17:40:16,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-30 17:40:16,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:16,966 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:40:16,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:16,984 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:16,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:17,015 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-08-30 17:40:17,016 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:17,017 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 17:40:17,018 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-30 17:40:18,852 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-30 17:40:18,852 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-30 17:40:18,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:40:18,869 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;@5b5886ad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:40:18,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-30 17:40:18,872 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 17:40:18,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:18,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:40:18,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:40:18,874 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 17:40:18,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:40:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-30 17:40:18,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:40:18,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356223365] [2023-08-30 17:40:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:40:18,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:40:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:40:19,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 17:40:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:40:19,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 17:40:19,078 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 17:40:19,079 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-30 17:40:19,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-30 17:40:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-30 17:40:19,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:40:19,082 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 17:40:19,087 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:40:19,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:40:19,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:40:19 BasicIcfg [2023-08-30 17:40:19,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:40:19,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:40:19,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:40:19,103 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:40:19,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:16" (3/4) ... [2023-08-30 17:40:19,105 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 17:40:19,133 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:40:19,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:40:19,134 INFO L158 Benchmark]: Toolchain (without parser) took 3337.06ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 62.1MB in the beginning and 44.6MB in the end (delta: 17.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,135 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:19,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.83ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 63.4MB in the end (delta: -1.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.02ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,136 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 86.0MB. Free memory was 61.3MB in the beginning and 60.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,137 INFO L158 Benchmark]: RCFGBuilder took 409.19ms. Allocated memory is still 86.0MB. Free memory was 60.0MB in the beginning and 47.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,137 INFO L158 Benchmark]: TraceAbstraction took 2331.29ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 46.7MB in the end (delta: 611.0kB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,138 INFO L158 Benchmark]: Witness Printer took 30.14ms. Allocated memory is still 104.9MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:19,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.83ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 63.4MB in the end (delta: -1.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.02ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 86.0MB. Free memory was 61.3MB in the beginning and 60.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.19ms. Allocated memory is still 86.0MB. Free memory was 60.0MB in the beginning and 47.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2331.29ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 46.7MB in the end (delta: 611.0kB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Witness Printer took 30.14ms. Allocated memory is still 104.9MB. Free memory was 46.7MB in the beginning and 44.6MB 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! [2023-08-30 17:40:19,160 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